An ipsilateral, intersegmental, spinal somatic reflex will most likely control
A) only one flexor muscle on the same side of the body as the sensor.
B) many flexor muscles on the same side of the body as the sensor.
C) many flexor and extensor muscles on the same side of the body as the sensor.
D) many flexor muscles on the opposite side of the body as the sensor.
E) many flexor and extensor muscles on the opposite side of the body as the sensor.
Ans: C) many flexor and extensor muscles on the same side of the body as the sensor.
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The parasympathetic division arises from the __________ regions of the spinal cord.
A. brain, thoracic, and lumbar B. brain, sacral, and coccygeal C. brain, lumbar, sacral, and coccygeal D. sacral and lumbar E. brain and sacral
Vessels that carry blood away from the heart are called ____________________.
arteries sinusoids capillaries veins none of the choices are correct
Active sites on the actin become available for binding when
A) Actin binds to troponin. B) Troponin binds to tropomyosin. C) Calcium binds to troponin. D) Calcium binds to tropomyosin. E) Myosin binds to troponin.
A multifactorial trait is determined by
A. only genetic factors. B. one or more genes and the environment. C. only environmental factors. D. neither genetic nor environmental factors.