Nerves that innervate the muscles and skin of the leg arise from the ________.
A. brachial plexus
B. sacral plexus
C. lumbar plexus
D. Both the sacral and lumbar plexuses are correct.
Answer: D
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The ______________________ instinct is used during threatening or predator/prey circumstances
Fill in the blank(s) with correct word
Urea is
a. a waste product resulting from the breakdown of protein b. passively reabsorbed at the end of the proximal tubule down a urea concentration gradient created by the osmotic-induced reabsorption of water from the proximal tubule c. recycled between the late portion of the collecting tubule and the long loops of Henle and this contributes to medullary hypertonicity d. found in the blood, filtrate, and urine e. all of the above
What is the function of nurse cells in the thymus gland?
A. Secrete thymic hormones B. Destroy moribund T-lymphocytes C. Transform helper T-lymphocytes into cytotoxic T-lymphocytes D. Transport mature T-lymphocytes to the bloodstream E. Nourish developing T-lymphocytes
Which of the following are compensatory measures for a fall in arterial blood pressure?
a. Increased cardiac output b. A shift of fluid out of the interstitial compartment into the vasculature c. A reduction in the urinary excretion of salt and accompanying fluid d. Increased total peripheral resistance as a result of the baroreceptor reflex e. All of the above