What are the two layers of the embryonic disc?
A. Mesoderm and ectoderm
B. Epiblast and hypoblast
C. Cytotrophoblast and syncytiotrophoblast
D. Myotome and dermatome
E. Mesoderm and endoderm
Answer: B
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A graph of an EPSP would plot time against a voltage trace that would resemble
A. a hill where the high point approaches the threshold value. B. a hill where the high point is the farthest away from the threshold value. C. a valley where the low point approaches the threshold value. D. a valley where the low point is the farthest away from the threshold value.
Using Figure 15.2, match the following hypothalamic hormones with the pituitary hormone targets:
1) Growth hormone-releasing hormone (GHRH).
2) Gonadotropin-releasing hormone (GnRH).
3) Prolactin-releasing hormone (PRH).
4) Corticotropin-releasing hormone (CRH).
5) Thyrotropin-releasing hormone (TRH).
An action potential in a presynaptic neuron induces opening of voltage-gated ____________________ channels in the synaptic knob, which triggers exocytosis of synaptic vesicles
Fill in the blank(s) with correct word
Which system would include neurons that trigger glands to secrete?
A. Autonomic motor system B. Visceral sensory system C. Somatic motor system D. Somatic sensory system E. All apply