Question

Write the function of the following a) Platelet b) Valve c) Nephron d) Capillaries​

Answer 1

Answer:

Platelets have the following functions:

Secrete vasoconstrictors which constrict blood vessels, causing vascular spasms in broken blood vessels

Answer 2

Answer:

Ƒմղçէìօղʂ օƑ քӀąէҽӀҽէ:

Platelets play an important role in the vessel. Following their formation from megakaryocytes, platelets exist in circulation for 5–7 days and primarily function as regulators of hemostasis and էհɾօʍҍօʂìʂ .

Ƒմղçէìօղʂ օƒ ѵąӀѵҽ:

The valves prevent the backward flow of blood. These valves are actual flaps that are located on each end of the two ventricles (lower chambers of the heart). They act as one-way inlets of blood on one side of a ventricle and one-way outlets of blood on the other side of a ventricle.

Ƒմղçէìօղʂ օƒ ղҽքհɾօղ:

Nephron, functional unit of the kidney, the structure that actually produces urine in the process of removing waste and excess substances from the blood. There are about 1,000,000 nephrons in each human kidney.

Ƒմղçէìօղʂ օƒ çąքìӀӀąɾìҽʂ:

Capillaries, the smallest and most numerous of the blood vessels, form the connection between the vessels that carry blood away from the heart (arteries) and the vessels that return blood to the heart (veins). The primary function of capillaries is the exchange of materials between the blood and tissue cells.

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