The Sperm Head Encloses a Compact Nucleus and Is Capped

question 43

Multiple Choice

The sperm head encloses a compact nucleus and is capped by a vesicle called what?

• A)Sertoli cell
• B)flagellum
• C)acrosome
• D)vas deferens

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Definitions:

Left Ventricle

The chamber of the heart that receives oxygen-rich blood from the left atrium and pumps it out to the body through the aorta.

Ventricular Systole

Ventricular systole is the phase of the cardiac cycle during which the ventricles contract, pumping blood out of the heart and into the circulatory system.

Semilunar Valves

Heart valves located between the ventricles and the major arteries leaving the heart, which prevent the backflow of blood.

AV Valves

Atrioventricular (AV) valves are valves located between the atria and ventricles of the heart that prevent backflow of blood from the ventricles into the atria during contraction.