The base where a hair follicle originates in the skin is known as the ________.
A. hair root
B. hair bulb
C. medulla
D. shaft
E. cuticle
Answer: B
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The two hormones released from the posterior pituitary are
A. oxytocin and antidiuretic hormone. B. thyrotropin-releasing hormone and corticotropin-releasing hormone. C. prolactin and growth hormone. D. prolactin and vasopressin. E. follicle-stimulating hormone and leutenizing hormone.
In the condition known as cryptorchidism, ___________.
A) the testes fail to descend into the scrotum. B) the prostate gland is enlarged. C) sperm cells are not produced. D) the testes are surgically removed. E) the foreskin has been surgically removed.
The process of engaging more motor units to increase the strength of a muscle contraction is called ________.
A. complete tetanus B. recruitment C. wave summation D. incomplete tetanus E. temporal summation
A heart rate below 60 beats per minute is called
A. tachycardia. B. fibrillation. C. ectopic. D. bradycardia.