A woman suffers from chronic dizzy spells, resulting in difficulty keeping her body vertical. Which reflex is involved?
A. Withdrawal reflex
B. Vestibular reflex
C. Startle reflex
D. Patellar tendon reflex
Answer: B
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Which of the labeled diagrams shows coarctation of the aorta?
a) A b) B c) C d) D e) E
Which part of the brain controls thirst and urine output, food intake, and body temperature, among other things?
a. cerebral cortex b. hypothalamus c. basal nuclei d. thalamus e. pons
When the stage moves to the right, the image moves to the __________.
a. right b. left c. bottom d. top
What would be the effect of a drug that blocked muscarinic receptors on the smooth muscle of the iris that regulates the size of the pupil?
A. Blood vessels in the anterior part of the eye would constrict. B. The pupil would dilate. C. The eye would focus more clearly on near objects. D. The eye would focus more clearly on distant objects. E. The pupil would constrict.