Which of the following is NOT important in helping the flow of lymph through lymphatic vessels?
A. respiratory movements
B. skeletal muscle movements and pulsations of nearby arteries
C. valves in some of the lymphatic vessels
D. contraction of smooth muscle in the lymphatic vessel walls
E. blood pressure in the capillaries
Answer: E. blood pressure in the capillaries
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Damaged nerve fibers in the CNS cannot regenerate due to an absence of which of the following?
A. A myelin sheath B. An epineurium C. An endoneurium D. Neuroglia E. An axolemma
The deltoid acts to
A) flex the wrist. B) medially rotate the shoulder. C) abduct the arm. D) adduct the arm. E) laterally rotate the shoulder.
Of the capillary beds associated with each nephron, the one that is both fed and drained by arterioles is the:
A) peritubular capillaries
B) pyramidal capillaries
C) glomerulus
D) Henle capillaries
E) Bowman's capillaries
Identify two major divisions of the ANS
A) somatic division and sympathetic division B) somatic division and parasympathetic division C) enteric division and the central division D) central division and sympathetic division E) sympathetic division and parasympathetic division