The human cardiovascular system is considered closed because __________. a. blood is continuously circulated in the body. b. blood provides nutrients to organs. c. blood collects oxygen from the lungs d. there are no holes for blood to enter or leave the system please select the best answer from the choices provided. a b c d

Answers

Answer 1

Answer:

I believe it is a: Blood is continuously circulated in the body.

Explanation:

Open Cardiovascular system is where blood freely flows through open spaces, whereas, with a closed cardiovascular system the blood flows through proper blood vessels.

hope this helps!

Answer 2

The human cardiovascular system is considered closed because there are no holes for blood to enter or leave the system. Therefore, the correct statement is option D.

What is the human cardiovascular system?

The human cardiovascular system is a closed loop and the blood circulates through a continuous network of vessels. The closed nature of the cardiovascular system is responsible for the efficient transport of blood, nutrients, and oxygen to the tissues and organs of the body.

The closed nature of the cardiovascular system is to maintain constant blood pressure and flow throughout the body and helps in the prevention of blood from mixing with other bodily fluids or any foreign substances as it can lead to infection.

The closed cardiovascular system is an important component of the human body and interconnected circulatory system.

Therefore, the human cardiovascular system is considered closed because there are no holes for blood to enter or leave the system.

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Related Questions

what does Accommodating mean (give brainlist)

Answers

Answer:

willing to please : helpful, obliging a generous and accommodating host.

Explanation:

Similar- obliging, cooperative, helpful, eager to help/please, adaptable

Match these items.

1. absorption begins here
large intestine
2. to leave the body
appendix
3. fourth site of digestion
second half of large intestine
4. to take into the body
excretion
5. safehouse for good bacteria
small intestine
6. water is absorbed here
villi
7. provide surface area to absorb the nutrients in the small and large intestines
absorption

Answers

Answer: PLS GIVE BRAINLIEST

1. absorption begins here: Small Intestine

2. to leave the body: Excretion

3.  fourth site of digestion: Large Intestine

4.     to take into the body: Absorption

5. safehouse for good bacteria: Appendix

6. water is absorbed here: Second half of large intestine

7. provide surface area to absorb the nutrients in the small and large intestines: Villi

Explanation:

I did this in class and got it correct

The food you eat gives your body energy. Do you think you need to eat more food if you are playing outside all day or watching movies all day? Why?

Answers

Answer:

if you are playing outside

Explanation:

Your using more energy and since food is energy you need more food

How can family and friends make a difference in the life of someone needing treatment?.

Answers

Answer:

By comforting them,cheering them up but time and love is always the best

Explanation:

sorry if my answer is wrong

Regarding the hormonal control of spermatogenesis, LH stimulates the secretion of
by______the Leydig cells and FSH stimulates the secretion of
by_______the Sertoli cells.

A. testosterone; ABP
B. estrogen; testosterone
C. ABP; testosterone
D. testosterone; estrogen

Answers

By the Leydig cells and FSH stimulates the secretion of by the Sertoli cells is D testosterone, estrogen. The focus controller of LH and FSH secretion is gonadotropin-releasing hormone (GnRH, also known as LH-releasing hormone).

What is the role of LH and FSH in spermatogenesis?

LH promotes Leydig cell T production, and FSH promotes in Sertoli cells, in synergy with T, the display of regulatory molecules and nutrients needed for the upkeep of spermatogenesis. Hence, both T and FSH regulate spermatogenesis indirectly through Sertoli cells.

Thus, By the Leydig cells and FSH stimulates the secretion of by the Sertoli cells is D testosterone, estrogen. The focus controller of LH and FSH secretion is gonadotropin-releasing hormone.

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what is population Education ? 2) what do meant you by demography?​

Answers

Answer:

The education of population is called population education.

Demography is the systematic and scientific study of human population primarily with respect to size, structure, distribution and change (development).

Answer:

Population Education as defined by UNESCO “is an educational programme which provides for a study of the population situation of the family , community, nation and the world, with the purpose of developing in the students rational and responsible attitudes and behaviour towards that situation.”

Demography is the statistical study of human populations. Demography examines the size, structure, and movements of populations over space and time. It uses methods from history, economics, anthropology, sociology, and other fields.

PLEASE HELP!!!!
When entering a doctor's office with an illness, you may exit the doctor's office with a prescription. However, did you have an adequate conversation with your doctor about the prescription? The more aware you are of the potential barriers to the use of medication, the greater your road to recovery.

Answers

I did my best to answer this I did not have mush to say but here

Hope this helps :))

how difficult is it to screen for cancer in the digestive system

Answers

Answer:

Because the lack of symptoms makes stomach cancer difficult to detect, doctors often diagnose the disease at more advanced stages. By that point, it is more challenging to treat.

Explanation:

it could hurt the eyes

Describe how urine is formed, beginning with the blood.

Answers

The description of the process is Blood pressure forces water and solutes from capillaries into the capsule through the filtering membrane, Then blood travels through genuine glomerulus before the process of urine production starts with glomerular filtration.

What is the Excretory system?

The organs and systems that remove waste from the body. The organ system regulates the amount of water in the body and filters and removes wastes created by metabolism from the blood.

In conclusion, Blood pressure forces water and solutes from capillaries into the capsule through the filtering membrane as blood travels through the genuine glomerulus. The process of urine production starts with glomerular filtration.

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Which structures produce a fluid to protect the body in the first line of defense? Select four options.

hair
stomach
mouth
eyes
skin

Answers

Answer:

b,c,d,e

Explanation:

skin,eyes, mouth, stomach

Answer:

The correct answer to you question is skin, eyes, mouth, stomach!!!

Explanation:

your welcome!

HELP ME I HAVE TO DO THIS CLASS, for reference I picked jogging to be my activity and I have to write a 3 paragraph report on the history of it just read the instructions and don't worry about question 3

Answers

Jogging a mile (4 laps) on the track is the exact activity I have chosen. The skills consist of a proper warm-up, an action (in this example, jogging four laps around an outdoor track), and a cool-down. I normally go for a run at 6-7 p.m., when the sun has already set.

When you get back to where you started after the warm-up lap, make any necessary adjustments to your hair, watch, music, and headphones. Then simply start jogging. Move your feet and hands as though you were about to begin jogging (jog in place). Breathe as hard and as loudly as you need to while jogging. Listen to the sound your foot produces as you run, as well as the sounds of others in front of or behind you. If someone is approaching you from behind or you need to pass them, be aware of your surroundings.


Mr.pace has a new script pick-up opportunity for meteor in 500mg. What are some patient care central features that can be helpful to drive an impactful conversation?(select all that apply)

Answers

For an impactful conversation the doctor should talk about the conditions and diagnosis to see if he or she has had a previous history of diabetes or other underlying conditions.

What is metformin?

Metformin is an oral hypoglycemic drug indicated mainly for the treatment of type 2 diabetes, as it works by reducing blood sugar levels, to levels closer to normal, and can be used alone or in combination with other oral antidiabetic drugs.

With this information, we can conclude that for an impactful conversation, the doctor should talk about the conditions and diagnosis to see if he or she has had a prior history of diabetes or other underlying conditions.

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Individuals with schizoid personality disorder often tend to display any of the following except __________. a. keeping to themselves b. relating well to other people c. rarely expressing strong emotions d. creating wild fantasies of other lives please select the best answer from the choices provided a b c d

Answers

Answer:

B

Explanation:

Schizoid Personality Disorder is often characterized by a lack of interest or detachment from social relationships and having a tendency to isolate themselves. People suffering from this disorder find it hard to connect emotionally to people and often avoid interacting with other people.

Individuals with schizoid personality disorder often tend to display any of the following except relating well to other people.

What is Schizoid personality disorder?

This is referred to as a personality disorder which involves people avoid social activities and interacting with others.

These set of people don't relate well with others as a result of their solitary behavior which is why option B was chosen.

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How often is frequent urination in early pregnancy?.

Answers

It's very common in pregnancy. Most people urinate between six and seven times in a 24-hour period. (But between four and 10 can also be normal.) Frequent urination – going more than seven times a day – affects 80 to 95 percent of women at some point during pregnancy

called the resistance vessels

Answers

Answer:

Arterioles

Explanation:

An athlete is doing 3 sets and 12 repetitions of an exercise. What is the total volume of the exercise the athlete did?
(a) 4
(b) 36
(c) 9
(d) 15

Answers

Well mathematics argue that B is the correct answer, but at this moment Idiocracy states all the other choices
the total volume of the exercise the athlete did would be b) 36

An older adult woman who is incontinent of stool following a cerebrovascular accident will have which of the following nursing diagnoses?
a) Diarrhea related to tube feedings, as evidenced by hyperactive bowel sounds and urgency
b) Fecal retention related to loss of sphincter control, and diminished spinal cord innervation related to hemiparesis
c) Bowel incontinence related to loss of sphincter control, as evidenced by inability to delay the urge to defecate
d) Constipation related to physiologic condition involving the deficit in neurologic innervation, as evidenced by fecal incontinence

Answers

Answer:

C.) Bowel Incontinence related to loss of sphincter control, as evidenced by inability to delay the urge to defecate

Explanation:

Hope this helps!!!

What are the long-term consequences of marijuana use?.

Answers

Answer:
Impaired memory.

Explanation:

Although the consequences of chronic or long-term use of marijuana are still debated, impaired memory seems to be the only consequence that can be proven. Seeing as how once a person has gotten their desired high, they tend to not remember as clearly once they come down from their high.

Effects of marijuana from long-term use may include:

memory issues
anxiety
depression
lower dopamine production
lung damage
persistent cough
greater risk for heart attacks, diseases, and stroke

describe filtration, active transport, and passive transport in a nephron in terms of the amount of energy required and the blood and urine components that are retained or reabsorbed through each process

Answers

The mechanism of reabsorption that takes place in the tubules of the nephron involves filtration, active transport, and passive transport. The various processes can further be described below

Mechanism of reabsorption in nephron

The nephron is the functional cell of the kidney that helps in the reabsorption, secretion, and excretion of numerous substances leading to the formation of urine.

The mechanism of reabsorption that takes place in the tubules of the nephron involves:

Filtration: This can be an active or a passive process depending on the area it occurs in the nephron.

Active transport: This type of transport requires energy to reabsorb substances against a concentration gradient in the nephron. It occurs in the proximal tubule of the nephron.

Passive transport: This doesn't require energy, the hydrostatic pressure produced by the heart pushes blood and solutes through the filtration membrane of the glomeruli.

Therefore, the mechanism of reabsorption that takes place in the tubules of the nephron involves filtration, active transport, and passive transport.

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define census? write the methods of population census in detail.​

Answers

Answer:

A census method is that process of the statistical list where all members of a population are analysed. The population relates to the set of all observations under concern. Population censuses typically use one of two approaches: De facto – meaning enumeration of individuals as of where they are found in the census, regardless of where they normally reside. De jure - meaning enumeration of individuals as of where they usually reside, regardless of where they are on census day. ​

Explanation:

Along with fortified grain products, what other class of foods is a good source of folate?.

Answers

Answer:

What foods have folate in them?

Folate is the natural form of vitamin B9, water-soluble and naturally found in many foods. It is also added to foods and sold as a supplement in the form of folic acid; this form is actually better absorbed than that from food sources—85% vs. 50%, respectively. Folate helps to form DNA and RNA and is involved in protein metabolism.  Hope this helps

Explanation:   None

Choose the correct cycle of addiction. a. drug use, dependence, tolerance, withdrawal, addiction b. drug use, tolerance, dependence, addiction, withdrawal c. drug use, addiction, dependence, tolerance, withdrawal d. drug use, withdrawal, tolerance, addiction, dependence please select the best answer from the choices provided. a b c d

Answers

Answer:

drug use, tolerance, dependence, addiction, withdrawal

Explanation:

How participation in physical activities can impact positively on the emotional well being of a recovering alcohol or drug addict

Answers

Answer:

this cam help becuase this can make a new rotiune for a person rather than sitiing there and doing things. Also this can clear people minds from what is going on.

Explanation:

do look up

what is the relationship between child abuse--violence

Answers

Child abuse is violent

what does this illustration say about body image?

Answers

Answer:

Explanation:

this can give an overall negative or shameful view of "bigger" women. stating, that "smaller" women are healthier than the alternative. That isn't true. in conclusion, this gives a negative view to women

Answer:

the illustration infers that the only thing affecting your body size is the food that you eat. the color scheme of the spectrum also encourages the audience to see thin as good and thicker bodies as shameful. it gives a negative view on body image and can lead some viewers to feel insecure or uncomfortable in their own bodies.

In nervous system physiology, the definition of a reflex is a ________.

Answers

Answer:

rapid, predictable, involuntary motor response to a stimulus.

Antibiotics treat bacterial infections. If a doctor is prescribing antibiotics to a patient, which disease does the patient most likely have?

sleep apnea
emphysema
pneumonia
cystic fibrosis

Answers

Answer: Pneumonia

Explanation:

Since pneumoniae a pneumonia is caused by a bacteria called Streptococcus pneumoniae, therefore antibiotics are prescribed for its treatment.

The left brain (all that apply)


-is factual

-more verbal

-is analytical

Answers

The left brain is analytical

What is an Upper sinus affection? What are the Symptoms? What is Strep? What's the symtoms?

Answers

Answer:

Caused by an infection, growths in the sinuses or swelling of the lining of your sinuses.

Signs and symptoms may include a blocked or stuffy (congested) nose that causes difficulty breathing through your nose, and pain and swelling around your eyes, cheeks, nose or forehead

When do organs and organ systems begin to develop in humans? (1) before fertilization (2) before birth (3) during childhood (4) during adulthood​

Answers

Answer:

the answer isbefore birth

Answer:

before birth, around the first month

Explanation:

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What is the name of the piece above? What is the distance between A(7, 4) and B(2, -8)? Brianna is graphing the function f(x) = x2 6x 5. what x-intercepts should brianna use to graph f(x)? 5 and 1 5 and 1 1 and 5 1 and 5 You are a payroll supervisor. You need to summarize work hours for an employee. The number of hours theemployee worked each week for seven consecutive weeks were 38, 37. 5, 38. 25, 35. 75, 39. 5, 39. 5, and 38. 5. What, approximately, is the mean number of hours this employee worked each week for the seven weeks?O 37. 63O 37. 92O 38. 14O 38. 2539. 5 what is the theme of Ungifted by Gordon Korman- add evidence no links GETS BRAINLYEST AND 100 POINTS ANSWER FAST Which structures produce a fluid to protect the body in the first line of defense? Select four options.hairstomachmoutheyesskin (09.06 MC) A mechanic gives a survey to all of his customers asking them to rate the quality of the service they received. He then keeps track of how many customers return to the shop for additional services during the next six months. Last year, the results showed that of the customers who reported high quality service, 20% returned for additional services. What conclusion can be drawn from this study? (6 points) Bob and Ted are in the plumbing business. Bob can do the plumbing hook-up for a new house in 4 hours; Ted does the same job in 6 hours. If they work together, how long will they take to hook up the plumbing in one house? 5 hours 2.4 hours 2.1 hours Write a list of at least 3 things that Eric has done right before applying for a loan. Why do planets like Jupiter and Saturn have large gas atmospheres while Mercury and Mars do not?options:Because Jupiter and Saturn have more massBecause of each planets distance from the Sun Because of their different orbits around the SunBecause they were formed at different times What are the components of one formula unit of caf2. Prohibited alcohol use includes which of the following When looking at the DNA fingerprints for the sets of twins, select "identical" or "fraternal" next to the corresponding sets of letters Please answer this question for points.16 x 7 x 15 + 11 + 17Try Ur best and take Ur time. How did Americas foreign policies change after World War 1? Journalize these transactions for Sampson Co. If an amount box does not require an entry, leave it blank If the given statement is not in if then form rewrite it write the converse 2 Now think of how you could sell the region you chose to a customer at the Time Travel Agency. You will write a short sales pitch, including the text for a travel brochure that encourages someone to visit that region.Check that your sales pitch includes the following:several aspects of the region that would attract a travelerlikely dangers the customer might encounter (these may sound like negative traits but they add adventure to your pitch)descriptive wording that highlights the regions physical and cultural attractionsfun and engaging writing that will persuade someone to visit the regiona good argument with logical reasoning and solid evidence that will convince people to visit the regioninteresting images of artifacts, monuments, and geographical featuresVisuals such as photographs, paintings, and illustrations will make your sales pitch more appealing to a potential customer. Make sure the pictures you use are of good quality. They shouldnt look fuzzy or grainy. They should be visually appealing.Write a short pitch of about 150 words.also make it about Japan An explanation as to why an opposing claim is flawed or weak is known as What similar purposes do a chicken wing and a human arm have in common?