Respuesta :
Answer:
two capillary beds
Explanation:
Here is the complete question:.
a human red blood cell in an artery of the left arm is on its way to deliver oxygen to a cell in thumb. to travel from the artery in the arm to the left ventricle, this red blood cell must pass through
a. one capillary beds
b. two capillary beds
c. three capillary beds
d. four capillary beds
e. five capillary beds
The answer is
b. two capillary beds
The human circulatory system is made up of blood vessels, the heart, blood, lungs, and capillary beds. The capillary bed is defined as a dense network of capillaries.
The red blood cell travels through an artery in the left arm to the left ventricle, then it will pass through two capillary beds.
The type of blood vessel that delivers oxygen-rich blood to different parts of the body is known as arteries.
The arteries when branch into narrow diameter vessels are termed arterioles.
Similarly, when the veins branch into narrow diameter vessels, are termed venules.
Venules and arterioles when exchanging blood and nutrients form a capillary bed. The structures formed for the exchange of blood and nutrients at the cellular level are known as capillary beds.
The red blood cell carried by the left arm arteries will deliver oxygen to the thumb. The thumb in return will provide waste material and deoxygenated blood through the exchange between capillary beds.
Thus, it will lead the red blood cell to pass through two capillary beds.
Therefore, the correct answer is two capillary beds.
To know more about capillary beds, refer to the following link:
https://brainly.com/question/15183863
