The footplate of the stapes is
A. much larger than the tympanic membrane, and the ossicles therefore amplify sound waves.
B. much smaller than the tympanic membrane, and the ossicles therefore amplify sound waves.
C. much smaller than the tympanic membrane, and the ossicles therefore dampen sound waves.
D. much larger than the tympanic membrane, and the ossicles therefore dampen sound waves.
Answer: B
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A horse with thickening of the skin or a large callus at the point of the hock is said to have which of the following?
A) bog spavin B) grease heel C) bone spavin D) capped hock
In terms of controlling micturition, the somatic nervous system innervates the ________, the 86) parasympathetic nervous system innervates the ________, and the sympathetic nervous system innervates the ________.
A) external urethral sphincter : detrusor muscle : internal urethral sphincter B) internal urethral sphincter : detrusor muscle : external urethral sphincter C) bladder : micturition reflex : external urethral sphincter D) internal urethral sphincter : external urethral sphincter : detrusor muscle E) bladder skeletal muscle : bladder smooth muscle : external urethral sphincter
Which of the following is a sympathetic effect?
A. constriction of the pupils of the eyes B. constriction of the bronchioles in the lungs C. contraction of the urinary bladder D. increased heart rate E. increased gastric secretions
The tube that carries urine out of the body is called the ________.
A. urethra B. collecting tube C. trigone D. ureter