The postganglionic fibers that connect an sympathetic ganglion and carry fibers that innervate glands and smooth muscle of the body wall or limbs are the
A) white rami communicans.
B) gray rami communicans.
C) posterior ramus.
D) anterior ramus.
E) dermatomes.
Answer: B
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The subdivision of the brain that does not initiate somatic motor movements, but rather coordinates and fine-tunes those movements, is the
a. medulla oblongata. b. cerebrum. c. cerebellum. d. diencephalon.
When someone begins to hyperventilate, the increased movements of their respiratory muscles ________ venous return of blood to the heart.
A. decrease B. increase
The two categories of immune defensive mechanisms are ________ and ________.
A. passive immunity; active immunity B. heavy immunity; light immunity C. direct immunity; indirect immunity D. innate (nonspecific) immunity; adaptive (specific) immunity
Hypoventilation dramatically increases carbonic acid concentration and involves ________
A) extremely deep breathing B) extremely fast breathing C) extremely slow breathing D) intermittent breathing E) irregular breathing