Which of the following is not a chemical class of neurotransmitters?
A) biogenic amine
B) nucleic acid
C) amino acid
D) ATP and other purines
B
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This figure shows the endocrine system. Which structure does number 4 indicate?
A. Adrenal gland B. Thyroid gland C. Pituitary gland D. Pancreas E. Hypothalamus
The integumentary, nervous, and endocrine systems are the only systems involved in regulating body temperature
Indicate whether the statement is true or false
The myogenic response refers to vascular smooth muscle's tendency to
a. constrict when blood flow increases b. relax when blood flow increases c. constrict when stretched d. dilate when stretched e. do both b and d
Human chorionic gonadotropin is
a. secreted from the corpus albicans b. secreted from the developing placenta c. at its highest level within the first two months of gestation d. both a and c e. both b and c