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Ch 13 test

QuestionAnswer
Trochlear cranial nerve innervates the superior oblique muscle. damage to this nerve would keep the eye from rotating inferolaterally.
Vestibulocochlear cranial nerve Damage to this nerve would cause dizziness. nausea, and loss of balancae
Vagus cranial nerve longest cranial nerve. Involved in movement of the digestive tract.
Hypoglossal cranial nerve Damage to this nerve would cause difficulty in speech and swallowing, but no effect on visceral organs.
Formed by the union of a cranial and spinal root Accessory nerve
Receptors located in epithelium of the nasal cavity Olfactory
Serves the senses of hearing and equilibrium Vestibulocochlear nerve
Helps regulate blood pressure and digestion Vagus nerve
Turns the eyeball laterally Abducens nerve
Tests both upper and lower motor pathways. The sole of the foot is stimulated with a dull instrument plantar reflex
Checks the integrity of the spinal cord and dorsal rami at the level of T8 to T12 Abdominal reflex
Produces a rapid withdrawal of the body part from a painful stimulus; ipsilateral flexor reflex
Prevents muscle overstretching and maintains muscle tone Stretch reflex
The obturator and femoral nerves branch from this plexus Lumbar plexus
Striking the funny bone/ulnar nerve may cause injury to a nerve of this plexus Brachial plexus
Trauma to a nerve of this plexus may cause wrist drop Brachial plexus
A fall or improper administration of an injection to the buttocks may injure a nerve of this plexus Sacral plexus
The phrenic nerve branches from this plexus Cervical plexus
Projection level of motor control Includes cortical and brain stem motor areas. intermediate relay for incoming and outgoing neurons
Precommand level of motor control The cerebellum and basal nuclei. controls the outputs of the cortex and regulates motor activity.
Segmental level of motor control Central pattern generators. The neural machinery of the spinal cord, including spinal cord circuits.
The only cranial nerve to extend beyond the head and neck region The vagus nerves
A reflex that causes muscle relaxation and lengthening in response to muscle tension Golgi tendon reflex
The patellar knee jerk is an example of Stretch reflex
nerve branches of trigeminal nerve mandibular, ophthalmic, and maxillary
nerves that arise from the brachial plexus ulnar, radial, median
The lowest level of the CNS central pattern generators CPGs
The three primary levels of neural integration in a somatosensory system receptor level, circuit level, perceptual level
The posterior side of the thigh, leg, and foot is served by the tibial nerve
In order, starting at the spinal cord, the subdivisions of the brachial plexus Roots, trunks, divisions, and cords
The cranial nerve with a dual origin of brain and spinal cord Accessory nerve
Major nerves of the lumbar plexus femoral and obturator
Spinal nerves exiting the cord from the level L4 to S4 form the Sacral plexus
The abducens nerve supplies innervation to the lateral rectus muscle of the eye
Inborn or intristic reflexes are involuntary, yet may be modified by learned behavior
number of pairs of thoracic spinal nerves 12
Pressure, pain, and temperature receptors in the skin exteroceptors
Potentially damaging stimuli that result in pain are selectively detected by nociceptors
Meissner's corpuscles are mechanoreceptors
Nociceptors are receptors that adapt most slowly
The trochlear nerve conveys proprioceptor impulses from the superior rectus muscle to the brain
Nerves that carry impulses toward the CNS only 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
crossed extensor reflex if the right arm were grabbed it would flex and the left arm would extend
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
The thickest and longest nerve of the body is found in the sacral plexus
innervation of a major nerve of this plexus may cause hiccups cervical plexus
Bells's palsy is characterized by paralysis of facial muscles
when the great toe dorsiflexes and the other toes fan laterally Babinski's sign
a simple spinal reflex goes along which reflex arcs? receptor, afferent neuron, integration center, efferent neuron,effector
Mixed cranial nerves containing both motor and sensory fibers include Oculomotor, trigeminal, and facial
Transduction conversion of stimulus information to nerve impulses
Musculocutaneous nerve innervates the flexor muscles in the anterior arm (biceps brachii and brachialis)
Cranial nerves that have neural connections with the tongue facial, glossopharyngeal, trigeminal
Problems in balance may follow trauma to which nerve? vestibulocochlear
A fracture to the ethmoid bone could result in damage to which cranial nerve? Olfactory nerve
The peripheral nervous system includes sensory receptors
The circuit level of the somatosensory system delivers impulses to the appropriate level of the cerebral cortex
If the ventral root of a spinal nerve were cut what would be the result in the tissue or region that nerve supplies? a complete loss of voluntary movement
Created by: Chanellenae