Most vital organs receive ________ innervation. That is, they receive input from both sympathetic and parasympathetic divisions
A) single
B) dual
C) biaxial
D) ambitonic
E) autonomic
B
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__________ diffusion is a process in which carrier proteins ferry substances down their concentration gradient without the use of cellular energy.
Fill in the blank(s) with the appropriate word(s).
In the following image of a coronal section through the rectum and anal canal, the arrow indicates:
A) the pudendal canal. B) the superficial perineal space. C) the deep perineal space. D) the ischioanal fossa. E) an ischioanal fistula.
The addition of stimuli arriving in rapid succession to produce an action potential is called ________.
Fill in the blank(s) with the appropriate word(s).
Which of the following structures is a remnant of the embryonic ventral mesentery?
(A) Sigmoidmesocolon (B) Mesentery of the small intestine (C) Greateromentum (D) Falciform ligament (E) Transverse mesocolon