Discuss the following aspects of the cardiovascular system.
-Anatomy
-Function of individual organs
-Blood flow

Answers

Answer 1
Me and my friends reviews and wrote up this… not sure wether it answers everything but if it does pls give me brainliest !

Your circulatory system is made up of several parts, including your:

Heart. This muscular organ works to pump blood throughout your body via an intricate network of blood vessels.
Arteries. These thick-walled blood vessels carry oxygenated blood away from your heart.
Veins. These blood vessels carry deoxygenated blood back toward your heart.
Capillaries. These tiny blood vessels facilitate the exchange of oxygen, nutrients, and waste between your circulatory system and your organs and tissues.
Interesting facts about the circulatory system
Your heart pumps about 5 liters of blood per minuteTrusted Source, but it’s only about the size of your fistTrusted Source.
It’s estimated that in a 70-year period, your heart will beat over 2.5 billion timesTrusted Source.
In most adult humans, a normal resting heart rate is between 60 to 100 beats per minuteTrusted Source.
The total length of all of the blood vessels in your body is about 60,000 miles.
Capillaries are your most numerous blood vessels and also the smallest. Red blood cells often have to move through the capillaries in single-file.
Your blood pressure changes throughout the day. It’s lowest when you’re asleep, and it peaks in the middle of the afternoon.
How does it work?
Your circulatory system is vital to your survival. Its function is to distribute blood and other nutrients to all your body’s organs and tissues.

The small blood vessels called capillaries facilitate the exchange of oxygen and nutrients between your blood and the cells in your body. Carbon dioxide and other waste products, which are expelled from your body, are also exchanged via your capillaries. These tiny capillaries are spread throughout your body so that they can reach every cell.

Let’s follow the blood on a simple loop through the circulatory system to see how it works:

Oxygen-depleted blood returns to your heart (the right side) via the veins.
Your heart pumps this blood to the lungs. In the lungs, the blood gets rid of carbon dioxide and picks up fresh oxygen.
Newly oxygenated blood returns to the other side of the heart (the left side), where it’s then pumped into the arteries.
Eventually, the blood enters the capillaries. Here, it releases oxygen and nutrients to your body’s organs and tissues. It then picks up carbon dioxide and other waste products.
The oxygen-depleted blood returns to the heart through the veins, and the cycle begins all over again.
The circulatory system can also respond to various stimuli to regulate the flow of blood. Examples of these stimuli include changes in:

blood volume
hormones
electrolytes
Circulatory system conditions
Below, we’ll explore some of the most common conditions that can affect the health of your circulatory system.

Atherosclerosis

Atherosclerosis is when plaque builds up along the walls of your arteries. Risk factors that can contribute to plaque buildup include:

high blood pressure
high cholesterol
tobacco use
diabetes
an unhealthy diet
low levels of physical activity
being overweight or obese
Atherosclerosis can gradually make the arteries narrower, affecting the amount of blood that can flow through them. Because of this, organs and tissues may not get enough oxygen.

When atherosclerosis affects the arteries of your heart, it’s called coronary artery disease. Other arteries in your body can also be affected as well. This is called peripheral artery disease, which affects how well blood can flow to your legs, feet, arms, and hands.

In some cases, an artery may become completely blocked by plaque or a blood clot. When this happens, a heart attack or stroke can occur.

High blood pressure

Your blood pressure is the force that your blood exerts on the walls of your arteries as your heart pumps. High blood pressure can eventually damage your heart and blood vessels, as well as other organs like your brain, kidneys, and eyes.

Angina

Angina is chest pain that occurs when your heart isn’t getting enough oxygen. It’s often caused by coronary artery disease, which makes the arteries supplying the heart narrower due to plaque buildup.

Arrhythmia

An arrhythmia is an abnormal heart rhythm. When you have an arrhythmia, your heart may be beating too fast (tachycardia), too slowly (bradycardia), or irregularly. It happens due to changes in the heart or its electrical signals.

Varicose veins

Your veins contain valves that help keep oxygen-depleted blood flowing toward your heart. When these valves fail, blood collects in the veins, which can cause them to bulge and become swollen or painful.

Varicose veins most often appear on the lower legs.
Answer 2
A antomy is the heart the veins arteries
Function is a transport blood and nutrients to parts of the body
Blood flow control by heart , veins and areteries

Related Questions

The hypothetical explosion that created the universe is called the big bash.


Please select the best answer from the choices provided

T
F

Answers

The awnswer is false
The answer is false, it was actually called the Big Bang.

Study the image below, which shows the limb bones of various mammals. What might some scientists infer from this diagram? *

A. These mammals have similar bones in similar patterns. For this reason, they might share a common ancestor.

B. These mammals have very different limb shapes with different sizes of bones. For this reason, they probably do not share a common ancestor.

C. These mammals have similar bones in similar patterns. For this reason, they might have evolved from one another in a linear fashion.

D. These mammals live in many different environments and have different limbs to match. For this reason, they probably do not share a common ancestor.

Answers

Answer:

C. These mammals have similar bones in similar patterns. For this reason, they might have evolved from one another in a linear fashion.

Explanation:

C is the correct anwser !!!!!!!!!!

help asap i'll give brainliest: where is radioactive waste/the waste from nuclear power plants stored?

Answers

They are stored in yuca mountain
All of the used nuclear fuel produced from the U.S. industry is tracked and traceable. Right now, all of the nuclear waste that a power plant generates in its entire lifetime is stored on-site in dry casks.

A permanent disposal site for used nuclear fuel has been planned for Yucca Mountain, Nevada, since 1987, but political issues keep it from becoming a reality. The technology to permanently store nuclear waste is available, we just need to deploy it.

The fossil record includes all of the fossils discovered on Earth. How is the fossil record organized?
A. Size
B. Age
C. Shape
D. Color

Answers

Answer:

The answer is C. Shape.

Explanation:

Geologists use a method called radiometric dating to determine the exact age of rocks and fossils in each layer of rock.

the answer is C for the shape

I need help im so tired that I cant even think so PPPPPPPPLLLLLLLLZZZZZZ help

c) In the system you created in (a), give an example of a sudden change that would affect the stability of the system. Explain what may happen. (2 points)
Think of an example of a natural disaster or human-caused environmental change that could affect the animals you chose in part (a).
All the littering in the forests and in the lakes, oceans, and rivers can take. over

Answers

I would think of global warming. So many ways humans can change and make an impact in this world like using less gas, picking up trash, use less electricity, recycling etc. this can effect the stability of the system and can create less of a problem to global warming with storms. Tornados can wipe out farmland. That effects food, crops, and animals.

Which lists the main components of Darwin’s theory of evolution?
Random mutations drive evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms do not change.
Natural selection drives evolution; the evolution of a population happens slowly; organisms have common ancestors; organisms change over time.
Natural selection drives evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms change over time.
Random mutations drive evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms do not change.

Answers

Answer:

Natural selection drives evolution; the evolution of a population happens rapidly; organisms have common ancestors; organisms change over time.

The second one is correct. I know this because it is Natural Selection, not random mutations like the first and forth ones say. It is not the third one because it happens slowly, over a long time.

Can Someone help me with this :)

Answers

Answer:

a.

Explanation:

contour maps show the elevations of an area.

A it’s your answer :))

Choose all the answers that apply.
Clouds:
trap sunlight in the atmosphere
cause precipitation
are caused by the Coriolis effect
reflect sunlight back into space
form from condensation

Answers

Answer:

The first, second, and last ones are correct.

Explanation:

I dont really need an explanation...

1st, 2nd, and the last one

The image below is an example of

A. reflection
B. refraction
C. absorption
D. diffusion

Answers

B or D I suppose I guess ?
A. B refraction
B. rafraction- change in direction of propagation of any wave as a result of its traveling at different speeds at different points along the wave front.

Can Someone help me with this :)

Answers

Answer:

cool,nice

Explanation:

cool nice awesome math greatness

Answer:

what’s the question?

Explanation:

The author of the passage would most likely agree that
A
most scientists don't believe that plants release oxygen.
B
the hypothesis that plants need light has been disproven by evidence.
C
Bromthymol blue does not reliably indicate the presence of carbon
dioxide.
D
scientific investigations can show how the process of photosynthesis occurs.

Answers

Hola,
D. Scientific investigations can show how the prices of photosynthesis occurs
D because it shows the prodded of photosynthesis

What is the role of photosynthesis in the flow on energy throughout an ecosystem?

Answers

Hello!! I'm always here to help!!

_________________________

The one-way flow of energy through the biosphere is made possible through photosynthesis. Plants convert solar energy into sugars, which they use to power themselves and other organisms. Carbon and oxygen nutrients are also cycled through the biosphere as a result of photosynthesis.

_________________________

Have A great Day!!

Photosynthesis supplies the base for
the one - way flow of energy through
the biosphere. Plants convert energy
from the sun into sugars, which
provides fuel for themselves and for
other organisms. Photosynthesis also
cycles carbon and oxygen nutrients
through the biosphere

The light from many stars can be seen from Earth. But there is a time delay between the time the light is emitted from the star and when we see it here on Earth. Which of the following statements best explains why there is a delay?
A. Stars twinkle, so they give off light at regular intervals.
B.The stars’ light is not bright enough to reach Earth immediately.
C.Stars are light-years away from Earth, so light takes time to reach our planet.
D.Earth’s atmosphere is too thick for light to reach the surface as soon as it is emitted.


HELP ME PLEASE!!!!!!

Answers

Answer:

C

Explanation:

I would think the answer is a have a great day

how are you doing?
if you want you can vent in the comments or the answers.

Answers

Answer:

good I've been staying home and doing my school work

Answer:

I'm good. thank you for asking : )

Explanation:

Which letter best represents the wavelength?

A
B
C
D

Answers

the answer would be A describing the wavelength
The answer is A :) I believe

Which foods are examples of complex carbohydrates? (Select all that apply.)

-white bread
-wheat
-cereal
-fruit juice concentrate
-oatmeal
-barley

Answers

Answer:

wheat,oatmeal,barley

Explanation:

Examples of Complex Carbs

Whole grains such as brown rice, wild rice, oatmeal, and whole-grain (rather than pearled) barley.

Grain-like foods such as quinoa (a seed) and buckwheat (a grass)

Starchy vegetables including potatoes, sweet potatoes, and corn.

The carbohydrates are defined as the main suppliers of energy to the body. Most of the carbohydrates come from the complex carbohydrates and natural sugars. Wheat, barley and oatmeal are examples of the complex carbohydrates.

What are complex carbohydrates?

The carbohydrates are the macronutrients by which our body obtains the energy. They are called carbohydrates as they contain carbon, hydrogen and oxygen. The complex carbohydrates are made up of sugar molecules which are strung together in long, complex chains.

The complex carbohydrates are found in foods such as peas, beans, whole grains and vegetables. Both the simple and complex carbohydrates are turned to glucose in the body and are used as energy.

Here among the given examples, the complex carbohydrates are Wheat, barley and oatmeal and others are simple carbohydrates. The brown rice, oats, wild rice, starch etc. are also complex carbohydrates.

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How would you describe the relationship between the eagle and the hare? Are there any patterns in their interactions with one another?

Answers

Answer:

ExplaHow would you describe the relationship between the eagle and the hare? Are there any patterns in their interactions with one another?nation:

1. The eagle is the predator and the hare is the prey.
2. The pattern of their relationship is that the prey will hide or run away from the predator. The predator will continue to attack until it becomes too high of a risk.

7.Which of the following animal pairs are the most closely related (or are most likely to share a very recent common ancestor)? *


A. Hippopotamus and Fish



B. Bird and Fly


C. Zebra and Horse


D. Snake and Pangolin

Answers

zebra and horse i believe
C. zebra and horse (i think)

WILL GIVE BRAINLIEST! 50 POINTS

What causes air masses to move?

When prevailing westerlies shift directions and move toward the west.
Weather conditions change rapidly to produce storms.
A collision takes place between two natural wind patterns.
Long, narrow bands of wind blow in the upper atmosphere.

Answers

Answer:-The cause of the air masses to move is: The current of air and wind causes the air masses to move. The change in the air masses is the reason for the change in the weather.

Explanation:

Air masses are moved by differences in air pressure, which is caused by uneven heating of the earth's surface by the sun. This creates areas of high and low pressure, and air masses will move from areas of high pressure to areas of low pressure.

What is air mass ?

An air mass is a large body of air in the atmosphere that has similar temperature and humidity characteristics throughout its horizontal extent.

Air masses are classified based on their source region, which can be over land or water and in different latitudes. As air masses move from their source regions, they can bring changes in weather conditions to the areas they move over.

The movement of air masses can also be influenced by the rotation of the earth, which causes the Coriolis effect. This effect causes air masses in the Northern Hemisphere to be deflected to the right, and air masses in the Southern Hemisphere to be deflected to the left.

The collision of two air masses with different properties, such as temperature and humidity, can also cause movement and create weather conditions.

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Which of the following statements correctly explains how this process works?​

Answers

D ……. ensnared a Manama skejbemw
D- The ALX1 gene is used to build a protein involved in the development of the break

Which of the following may be caused by molds?

Allergy
Pneumonia
Cystic fibrosis
Huntington's disease

Answers

Answer:

Pneumonia

Explanation:

This comes from the cells in pheumonia that make every thing around it turn to a mold like substance

Pneumonia
as people who have weak immune system may have infections due to exposure to the mold.

solar power:

description: renewable? non-renewable?
pros and cons
where it is found
how it is recovered
brief history
how it is stored in the source
how energy is released
economic impact
environmental impact
future of energy source

i know this is a lot, just answer whatever you can!

Answers

Answer:

Where it is found:

China, United States, Germany, Japan

It is renewable

How it is recovered:

Through re-use, mechanical recycling, or chemical recycling

Explanation:

Renewable, it reduces greenhouse gases

1. What do scientist think caused the Autumn Buttercups to disappear in that certain area?

Answers

Answer:

they took the cows out of the pasture thinking that the autumn buttercups would grow better then with the cows in the pasture.

Explanation:

Took the cows out of the pasture thinking that the autumn buttercups would grow better ???

Does anyone know an interesting fact about Protists?

Answers

Answer: Oh I know one fact about them! They cause diseases.

Hope it helps!

Explanation:

Yes i do! Protists can be pathogens, and prefer moist environment

What are the pros and cons of solar power?

Answers

Pro : you are saving energy and electricity
Con: doesn’t work at night and it hurts the environment
Pros-reduces electricity bills,low maintenance cost,technology development
Cons-weather dependent,solar energy storage can get expensive,use lots of space,associated with pollution

Identify each wave interaction based on how it changes direction.
The wave changes direction as it bends and scatters.



The wave changes direction as it changes its speed.



The wave changes direction at an angle equal to the angle of incidence.

Answers

The wave changes direction as it bends and scatters. - Refraction because it changes in direction of the waves that occur when waves travel from one medium to another.

The wave changes direction as it changes its speed. - Refraction because the waves change speed when they pass across the boundary between two different substances, such as the light waves refracting when they pass the air to glass.

The wave changes direction at an angle equal to the angle of incidence. -reflection because if a wave hits a mirror at an angel of 36, and it will be reflected at the same angel of 36.

Explanation: Hope this helps, Have a good day!

The wave changes direction as it bends and scatters is known as reflection, the wave changes direction as it changes its speed is known as refraction, and the wave changes direction at an angle equal to the angle of incidence is diffraction.

What are wave interactions?

When waves interact, they can change direction in different ways. Here are the three ways that waves can change direction:

1. Reflection: The wave changes direction at an angle equal to the angle of incidence. This happens when a wave hits a barrier or a surface that it can't pass through. The angle of incidence is the angle between the incoming wave and the normal, which is an imaginary line perpendicular to the surface.

2. Refraction: The wave changes direction as it changes its speed. This happens when a wave passes from one medium to another, and the speed of the wave changes. When this happens, the wave bends towards or away from the normal, depending on the direction of the change in speed.

3. Diffraction: The wave changes direction as it bends and scatters. This happens when a wave encounters an obstacle or a gap in a barrier that is comparable in size to the wavelength of the wave. When this happens, the wave bends around the obstacle or spreads out through the gap.

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Explain to the Econauts how their plans for the next biodome should be different.

Answers

Answer:

hope this helps :)

Explanation:

A biodome is a self-sustaining habitat for plants. Students will make a biodome in a recycled soda bottle and watch as their seeds grow. Students will observe and understand how the water in the biodome continues to recycle itself through condensation and evaporation.

Which foods would be classified as fats? (Select all that apply.) no links

-vegetables

-fruit

-dairy

-fish

-water

-nuts

Answers

Answer:

fish nuts

Explanation:

I don't have an explanation but it's true

Fish and nuts I need points

Can Someone help me with this :) and NO LINKS

Answers

Answer:

A

Explanation:

it's showing the elevations of different surface features

The answer is A: It shows the elevations of different surface features. As you can see, around muskrat canyon, the map has more lines.

Also, can I have Brainliest

Which of these organisms is not a chordate? earthworm snake sea squirt human​

Answers

Answer:

Humans

Explanation:

Humans are not chordates because humans do not have a tail. Vertebrates do not have a notochord at any point in their development; instead, they have a vertebral column.

The organism that is not a chordate is the earthworm.

What are chordates?

Chordates are a group of animals that possess four distinctive anatomical features at some point during their life cycle: a notochord, dorsal nerve cord, pharyngeal slits, and a post-tail. These features set chordates apart from other animal groups and have been critical in their evolutionary success.

Chordates include a wide variety of animals, ranging from fish, amphibians, and reptiles to birds and mammals, including humans. Chordates are found in aquatic environments such as oceans, rivers, and lakes, as well as on land, and play a critical role in many ecosystems as both predator and prey.

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