A runner crossed the finish line without feeling pain from her blisters or other injuries. Which chemical neurotransmitter was involved?
A. Acetylcholine
B. Epinephrine
C. Endorphins
D. Serotonin
Answer: C
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Within the vertebral canal is/are the
A. anterior longitudinal ligament (ALL). B. posterior longitudinal ligament (PLL). C. spinal cord. D. b and c
Hormones that dominate during the resistance phase of the general adaptation syndrome (GAS) are the
A) mineralocorticoids. B) androgens. C) glucocorticoids. D) catecholamines. E) gonadotropins.
The ventricles completely empty when they contract in systole.
Answer the following statement true (T) or false (F)
Which cells develop into the photoreceptors?
A) optic vesicles B) cornea C) ependymal cells of the inner layer of the optic cup D) ependymal cells of the outer layer of the optic cup E) nervous tissue of the outer layer of the optic cup