Ringworm is an infection of the skin, hair, and nails caused by a
A. parasite.
B. virus.
C. inflammation.
D. bacterium.
E. fungus.
E
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In smooth muscle cells that can produce action potentials, cell membrane depolarization usually opens voltage-sensitive sodium channels.
Answer the following statement true (T) or false (F)
Stephanie is in a car accident, flung from her vehicle and landing on her back on
pavement. At the scene, an emergency medical technician checks her Babinski reflex, in which the great toe extends upward and the smaller toes fan apart. This reflex A) may indicate an injury to the corticospinal tract. B) is meaningless in assessing an emergency situation. C) is normal in adults. D) may indicate aging of the corticospinal tract.
Sensory neurons called intrinsic primary __________ neurons respond to specific local stimuli in the digestive tract
Fill in the blank(s) with correct word
The lymphatic system is closely connected to what other system?
A. Cardiovascular B. Nervous C. Muscular D. Endocrine