All categories

3 years ago

16. These structures keep the atrioventricular valves

2 answers:

4 0

A. Chordae tendineae

The AV valves are anchored to the wall of the ventricle by chordae tendineae (heartstrings), small tendons that prevent backflow by stopping the valve leaflets from inverting. The chordae tendineae are inelastic and attached at one end to the papillary muscles and at the other end to the valve cusps.

Kazeer [188]3 years ago

3 0

Answer:

The structures that prevent the atrioventricular valves from reopening into the atria are called chordae tendineae (option a).

Explanation:

Tendinous cords, or chordae tendineae, are structures in the form of fibrous filaments that connect the atrioventricular valves to the papillary muscles of the ventricles.

The function of the chordae tendineae is to<u> prevent the mitral and tricuspid valves from opening during ventricular contraction, preventing backflow of blood from the ventricles to the atria</u>.

The chordae tendineae are predominantly made up of collagen and elastin, in addition to a small percentage of endothelium.

The other options are not correct because:

<em> b. Myocardial septa is the division between the right and left ventricles.</em>

<em> c. Purkinje fibers are fibers that transmit the nerve impulse that allows ventricular contraction.</em>

<em> d. Semilunar cusps, correspond to the shape of the closed semilunar valves.</em>

You might be interested in

Midsagittal plane vertically divides the body through the midline into two equal left and right

riadik2000 [5.3K]

Answer:

Halves

Explanation:

I am learning this as well!

6 0

3 years ago

The Daily Values represent appropriate intake levels for a(n) _____ diet. Multiple choice question. 2,000-calorie 1,800-calorie

grigory [225]

Given basic nutritional information, the daily values are set for a diet of 2000 calories.

The daily values represent the appropriate intake levels for a 2000 calorie diet. This is not to say that every person should have a 2000 calorie intake daily, but it is used by the USDA to establish a benchmark to be used.

For example, a person who has a daily calorie intake of 2000 calories should, according to the USDA, consume about 50 grams of protein per day. These numbers can then be adjusted proportionally for each individual based on their calorie intake.

To learn more visit:

brainly.com/question/1357152?referrer=searchResults

4 0

3 years ago

What is a philosophy of nursing and why does Magnet ask health care organizations to define their philosophy

galben [10]

Nurses function at their peak when a Magnet environment is fully expressed and embedded throughout the health care organization, wherever nursing is practiced.

3 0

3 years ago

Common signs and symptoms of preeclampsia include: Select one: a. ketones in the urine and rapid weight gain. b. weight loss, bl

natka813 [3]

Common signs and symptoms of preeclampsia include:

Edema, hypertension, and headache.

<h3>What is preeclampsia?</h3>

Preeclampsia is a condition that occurs in pregnant women that causes high blood pressure in the mother and is accompanied by proteinuria.

<h3>Signs and symptoms of preeclampsia</h3>

High blood pressure rises after about the 20th week of pregnancy, and stays high until the baby is born.

Sudden swelling of the face, hands or feet (edema) together with a severe and persistent headache.

In preeclampsia, there are problems with the placenta, which, together with hypertension, can reduce blood flow to the growing baby.

Therefore, we can conclude that preeclampsia is a condition that can develop during pregnancy, raises blood pressure, and can also affect the baby.

Learn more about preeclampsia here: brainly.com/question/4604751

6 0

3 years ago

What is the term for a doctor who specializes in treating cancer with radiation therapies

Gemiola [76]

Answer:

An oncologist is a doctor who treats cancer and provides medical care for a person diagnosed with cancer. The field of oncology has three major areas: medical, surgical, and radiation. A medical oncologist treats cancer using chemotherapy or other medications, such as targeted therapy or immunotherapy.

short-hand version: c)radiation oncologist

6 0

3 years ago

Read 2 more answers