91) The phrenic nerves arise from the
A) cervical plexus.
B) thoracic : 1200505.
91) The phrenic nerves arise from the
A) cervical plexus.
B) thoracic plexus.
C) lumbar plexus.
D) sacral plexus.
E) brain.
92) The brachial plexus nerve that controls the flexor muscles of the arm and forearm, and the skin on the lateral surface of the forearm, is the ________ nerve.
A) ulnar
B) radial
C) median
D) axillary
E) musculocutaneous
93) The cranial nerves whose primary function is special sensory are
A) VIII, IX, and XII.
B) III, IV, and VI.
C) II, III, and IV.
D) I, II, and VIII.
E) I, III, and V.
94) Which nerve innervates the diaphragm?
A) musculocutaneous
B) obturator
C) axillary
D) saphenous
E) phrenic
95) Which nerve from the brachial plexus innervates the extensor muscles of the arm and forearm?
A) ulnar
B) musculocutaneous
C) radial
D) median
E) axillary
96) Damage to the ________ nerve, which is vital for the autonomic control of visceral function, could result in death.
A) abducens
B) facial
C) glossopharyngeal
D) vagus
E) hypoglossal
97) Another name for the patellar reflex is the
A) knee-jerk reflex.
B) spinal short reflex.
C) dorsiflexion reflex.
D) long spinal reflex.
E) ankle-jerk reflex.
98) Muscle spindles
A) are found in cardiac muscle.
B) are bundles of small, specialized skeletal muscle fibers.
C) are controlled through the cranial nerves.
D) are found mainly in smooth muscle.
E) are not involved in stretch reflexes.
99) Monosynaptic reflexes
A) are among the most complex reflex arcs.
B) involve two or more sequential synapses.
C) usually control slow motor responses.
D) do not control stereotyped responses of the nervous system.
E) are exemplified by the stretch reflex.
100) Pulling away from a painful stimulus is an example of a(n) ________ reflex.
A) cross-extensor
B) pupillary
C) withdrawal
D) knee-jerk
E) ankle-jerk
91) The phrenic nerves arise from the
A) cervical plexus.
B) thoracic : 1200505
