Which of the following muscles is responsible for medially rotating the tibia on the femur when the knee is flexed?

A. Vastus medialis
B. Adductor brevis
C. Semitendinosus
D. Piriformis
E. Sartorius


Answer: C

Anatomy & Physiology

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During glomerular filtration, fluid and molecules pass from the glomerular capillaries into the glomerular capsule, across a filter composed of the wall of the capillaries and the ________ of the glomerular capsule.

A. filtrate B. erythrocytes C. podocytes D. leukocytes

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The portion of the kidney that extends between the renal pyramids is called the

a) renal columns b) renal medulla c) renal pelvis d) calyces e) renal papilla

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The first line of cellular defense against pathogens are the

A) T cells. B) B cells. C) NK cells. D) phagocytes. E) plasma cells.

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