The final stage of spermatogenesis, during which spermatids develop into mature sperm, is known as ________.
Fill in the blank(s) with the appropriate word(s).
spermiogenesis
Anatomy & Physiology
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The external jugular veins drain into the
A. dural sinuses. B. brachiocephalic veins. C. subclavian veins. D. carotid veins.
Anatomy & Physiology
The hormone aldosterone promotes the
A. reabsorption of potassium ions. B. reabsorption of sodium ions. C. secretion of calcium ions. D. secretion of sodium ions.
Anatomy & Physiology
The bicuspid or mitral valve is the valve ________.
A. between the left atrium and left ventricle B. that opens from the right ventricle into the artery C. between the right atrium and right ventricle D. that opens from the left ventricle into the artery
Anatomy & Physiology
As a result of the foramen ovale, blood is allowed to bypass the
A) kidneys. B) aorta. C) liver. D) lungs.
Anatomy & Physiology