Unlike the two-neuron chain of autonomic nerve fibers, the axon of a motor neuron is continuous from its origin in the CNS to its ending on skeletal muscle
a. True
b. False
Indicate whether the statement is true or false
True
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The anticodon for the triplet UCA is
A) AGU. B) AGC. C) TCA. D) TGT. E) AGT.
Vasopressin
a. is released when hypothalamic osmoreceptors are activated b. promotes water secretion in the kidneys c. causes increased systemic vasoconstriction d. has a and c characteristics e. has all of the above characteristics
_________________________ can occur to muscles that are infrequently used.?
Fill in the blank(s) with correct word
Answer the following statements true (T) or false (F)
1. Steroid hormone receptors are in the nucleus of the cell. 2. Steroid hormones do not need a second messenger because they are able to pass through the cell membrane. 3. A cell with an abnormally low number of ribosomes would slow down the effect of a steroid hormone. 4. TSH causes an increase in thyroid hormones when their blood level is too low. This is an example of a positive feedback mechanism. 5. Most hormones use a negative feedback system for regulation.