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nekit [7.7K]
2 years ago
15

As they pass through small blood vessels, erythrocytes may pack together, single-file, like a roll of coins; this formation is c

alled ______.
Biology
1 answer:
kogti [31]2 years ago
3 0

a rouleau (rouleaux)

<h3>What is a rouleau?</h3>

Red blood cells (RBCs) can stack up or aggregate into rouleaux (singular: rouleau), which are formed by the distinct discoid shape of vertebrate cells. The discoid RBCs' flat surface offers them a lot of surface area to cling to and make contact with, creating a rouleau. Because of them, the ESR (erythrocyte sedimentation rate) increases when the plasma protein concentration is high. This serves as an all-purpose indicator of sickness.

Infections, multiple myeloma, Waldenström's macroglobulinemia, inflammatory and connective tissue disorders, and malignancies are among the illnesses that can result in rouleaux production. As one of the causes of microvascular occlusion in diabetic retinopathy, it also occurs in diabetes mellitus.

Learn more about RBCs here:

brainly.com/question/13733676

#SPJ4

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dybincka [34]

Answer:

the answer is A

Explanation:

the cell membrane is like a shield to the cell.

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3 years ago
The right ventricle transports oxygenated blood to the lungs true or false
adell [148]

I believe the correct answer is FALSE.

<h2>Explanation:</h2>

The heart is an organ located at the center of the chest in the thoracic cavity and functions to supply blood to and from tissues giving the tissues oxygen and nutrients while taking away carbon dioxide and waste products. It is divided into 4 chambers and 2 chambers are separated by a muscular wall that prevents mixing of the blood.

<h2>Further Explanation:</h2>

Blood enters the heart via the vena cava which is divided into the superior vena cava that recieves blood from the upper region of the body that includes the head, neck and chest while the inferior vena cava recieves blood from the lower extremeties that includes the legs, the abdomen, the pelvic region and the thighs. The blood is deposited into the right atrium and is de-oxygenated. When it is deposited into the right atrium, the change in volume of the atrium and the expansion causes the valve to open and allow the de-oxygenated blood to flow into the right ventricle. The right ventricle then pumps the blood that is de-oxygenated to the lungs via the pulmonary artery which is the only artery that pumps de-oxygenated blood. In the lungs, carbon dioxide is removed and oxygen added to the blood and is taken to the left atrium which pumps the oxygenated blood to the left ventricle and then the left ventricle pumps the oxygenated blood to the rest of the body. The blood is then again taken through the body via the capillaries and the veins pick up the blood that has been removed of oxygen and added with carbon dioxide and transport the blood back to the heart via the vena cava. It enters the right atrium via both the inferior and superior vena cava and the de-oxygenated blood is circulated again to the lungs for oxygenation from the left ventricle.

<h2>Learn More:</h2>

Learn More about types of circulation: brainly.com/question/1615925

Learn more about the heart: brainly.com/question/12945500

Learn more about the circulatory system: brainly.com/question/919984

Level: High School

Subject: Biology

Topic: The Circulatory System

6 0
3 years ago
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Which is the advantage of water's heat capacity?
kipiarov [429]

Answer:

it protects aquatic life from changes in air temperature

Explanation:

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2 years ago
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What second messenger most directly causes calcium ions to be released from intracellular stores?
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IP3 binds to the calcium channels and opens Ca2+ channels that are embedded in the ER membrane, releasing Ca2+ into the cytosol. Calcium ions released may cause contraction and regulate the Ca2+ channels in the membranes.

6 0
2 years ago
The bones in the wings of birds and bats are _______ because they derived from a _______ ancestor, while the wings are _______ t
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Hey there,

Question : <span>The bones in the wings of birds and bats are _______ because they derived from a _______ ancestor, while the wings are _______ traits. 

Answer : </span><span>homologous; common; homoplastic 

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