What determines whether a person has type A, B, or O blood?

A. Antibodies in blood plasma that react against foreign red blood cells
B. Antibody receptors on the surface of red blood cells
C. Variant structures of hemoglobin within red blood cells
D. The presence or absence of spectrin in plasma membranes of red blood cells
E. Glycolipids that act as antigens on the surface of red blood cells


Answer: E

Anatomy & Physiology

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What is the function of the cremaster muscle?

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Molecules that have properties of both polar and nonpolar molecules are called

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Anatomy & Physiology

Which of the following is incorrect pertaining to the sacral plexus?

A) It is located on the posterolateral wall of the lesser pelvis. B) It is related to the anterior surface of the piriformis muscle. C) It is joined by the lumbosacral trunk. D) It may be compressed during parturition, resulting in lower limb pain. E) Most of its branches exit the pelvis through the lesser sciatic foramen.

Anatomy & Physiology