Label F represents which of the following structures?
A) renal papilla
B) renal columns
C) renal cortex
D) major calyx
E) minor calyx
A) renal papilla
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Consider the difference between lifting a light pad of paper versus a heavy textbook. The primary way the level of force of muscle contraction is controlled is by
A. recruiting a different number of motor units. B. activating different regions of the muscle. C. activating the motor units at a different frequency. D. altering the number of crossbridges each individual fiber uses.
The intrinsic pathway of coagulation is activated by the
A) release of tissue factor by a damaged endothelium. B) conversion of prothrombin to thrombin. C) activation of proenzyme exposed to collagen. D) sticking of platelets to damaged tissue. E) release of heparin from the liver.
Hematocrit is
A) a clotting factor. B) a disease. C) the color of plasma. D) the percent of red blood cells in a blood sample.
Which of the following is comprised of anterior rami from C5-T1?
A. Lumbar plexus B. Brachial plexus C. Coccygeal plexus D. Sacral plexus E. Cervical plexus