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Chapter 13 The Peripheral Nervous System

Terms in this set (46)

The patellar "knee jerk" reflex is an example of a
Stretch reflex
Which nerve is not a branch of the trigeminal nerve?
cervical
Which of the following nerves does not arise from the brachial plexus?
phrenic
Which of the following is not a way that sensory receptors are classified?
Sensitivity to a stimulus
Which of the following is not a main level of neural integration in the somatosensory system?
Segmental
The posterior side of the thigh, leg, and foot is served by which nerve?
Tibial nerve
Starting at the spinal cord, the subdivisions of the brachial plexus are
roots, trunks, divisons, and cords
The cranial nerve with a cervical origin (spinal cord) is the
accessory
Which of the following is an incorrect statement regarding the occurrence of a sensation?
The stimulus energy must be converted into the energy of a graded potential called a transduction potential
A major nerve of the lumbar plexus is the
femoral
Inborn or intrinsic reflexes are
involuntary, yet may be modified by learned behavior
Which of the following is not an aspect of sensory perception?
visceral identification
Striking the "funny bone" is actually stimulation of ( or injury to) the
ulnar nerve
A reflex that causes muscle relaxation and lengthening in response to muscle tension is called a
tendon reflex
Pressure , pain, and temperature receptors in the skin are
exteroceptors
Potentially damaging stimuli that result in pain are selectively detected by
nociceptors
Which receptors adapt most slowly
pressure receptors
Nerves that carry impulses toward CNS only are
afferent nerves
After axonal injury, regeneration in peripheral nerves is guided by
Schwann cells
Regeneration within the CNS
is prevented due to growth-inhibiting proteins of oligodendrocytes
In a crossed-extensor reflex, if the right arm was grabbed it would flex and the left arm would
extend
What does pattern recognition do?
Allow us to recognize a familiar face
All processing at the circuit level going up to the perceptual level must synapse in the
thalamus
The sciatic nerve is a combination of which two nerves?
common fibular and tibial
Which nerve is compressed in carpal tunnel syndrome?
median
Bell's palsy is
characterized by paralysis of facial muscles?
Which of the following is correct simple spinal reflex arc?
receptor, afferent neuron, integration center, efferent neuron, effector
Mixed cranial nerves containing both motor and sensory fibers include all except which of the following?
olfactory
Transduction refers to conversion of
stimulus energy into energy of a graded potential
The flexor muscles in the anterior arm (biceps brachii and brachialis) are innervated by what nerve?
musculocutaneous
The cranial nerves that have neural connections with the tongue include all except the
trochlear
Problem in balance may follow trauma in which nerve?
vestibulocochlear
Ganglia is associated with the afferent nerve fibers
contain cell bodies of sensory neurons
Feeling a gentle caress on your arm would likely involve all of he following except
Pacinian corpuscles
A patient who received a blow the side of he skull exhibits the following signs and symptoms on that side of the face: he is unable to close his eye, and the corner of his mouth droops. Which cranial nerve has been damaged?
facial
If the ventral root of a spinal nerve were cut, what would be the result in the tissue of region that nerve supplies?
a complete loss of sensation
The highest level of motor control involves the basal nuclei and the
cerebellum
Body movement receptors are called
proprioceptors
The perineurium defines the boundary of a
fascicle
Which nerve is the largest of the cranial nerves
trigeminal
The primary receptor for he pain stimuli is the
nociceptor
The facial nerve is a cranial nerves numbers
VII
Tingling sensation when blood has been cut off from an area, as when blood has been cut off from an area, as when the foot "goes to sleep"
parathesia
Partial or total of smell is known as
anosmia
The thickest and the longest nerve in the body is the
sciatic nerve
Information regarding skeletal muscle tension is provided by tendon organs
and muscle length by muscle spindles
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