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70 Cards in this Set

  • Front
  • Back
Motor structures
Descending tracts
Corticospinal tract
Pyramidal tract
Electrical signal arises in the precentral gyrus of the frontal lobe
Most neurons decussate in the medulla oblongata
Extrapyramidal tracts
I'm wiggling my toes
I'm winking
Sensory structures
Carries information for touch, pressure, and pain
Ascending tracts
Carries info to the parietal lobe
Spinothalamic tract
I feel pain in my little finger
I'm cold
I'm hearing voices
Spinocerebellar
Babinski reflex
This reflex is elicited by stroking the sole of the foot; plantar flexion and curling of the toes are normal responses in an adult
Achilles' tendon reflex
A stretch reflex; tapping this tendon in the heel normally causes plantar flexion of the foot; also called the ankle jerk reflex
Gag reflex
This reflex involves the glossopharyngeal nerve and helps prevent food and water from going down the wrong way
Baroreceptor reflex
This reflex helps your body maintain a normal blood pressure
Patellar tendon reflex
This reflex helps you maintain a standing posture; also called the knee jerk reflex
Withdrawal reflex
A protective reflex; quickly moves your finger away from a hot object
Pupillary reflex
This reflex causes the pupils of the eyes to constrict (become smaller) in response to light
Olfactory
Sense of smell; anosmia
Vestibulocochlear
Senses hearing and balance; vertigo; ototoxicity; cranial nerve VIII
Vagus
The wanderer; widely distributed throughout the thoracic and abdominal cavities; cranial nerve X
Accessory
Allows you to shrug your shoulder
Optic
Cranial nerve II; carries sensory info from the eyes to the occipital lobe of the brain; damage to this nerve causes blindness
Hypoglossal
Helps control the movements of the tongue; cranial nerve XII
Oculomotor
Pros is of the lids; in addition to moving the eyeball, this nerve raises the eyelid and constricts the pupil of the eye; nerve that supplies most of the extrinsic eye muscles; primary function is the movement of the eyeballs; a dilated and fixed pupil is caused by pressure on this nerve
Trigeminal
Tic douloureux, a condition characterized by extreme facial and jaw pain, is caused by inflammation of this nerve
Facial
Can't smile, wrinkle forehead, secrete tears, or close eyes (on the affected side); inflammation of this nerve causes Bell's palsy, a paralysis of one side of the face
Sciatic
Must administer an intramuscular injection in the upper outer quadrant of the buttocks to avoid injuring this nerve; this large nerve leaves or emerges from the distal end of the spinal cord and supplies the buttocks and posterior thighs
Axillary
Crutch palsy is caused by damage to this nerve
Radial
Wristdrop is caused by damage to this nerve
Common peroneal
If damaged, causes footdrop
Femoral
Innervates the inner thigh area
Cauda equina
Group of nerves that emerge from the distal end of the spinal cord; horses tail
Phrenic
Severing of this nerve requires the use of a ventilator; nerve that supplies the diaphragm, an important breathing muscle
Plexus
Nerve groupings that are described as cervical, brachial, and lumbosacral nerves; spinal nerves are grouped and sorted here
Is most descriptive of a descending tract
Motor
most likely to experience ototoxicity
A person who took an antibiotic drug that injured CN VIII
Pyramidal tract
The major motor tract that originates in the precentral gyrus
A student nurse is instructed to administer an IM injection in the upper outer quadrant of the buttocks to
Avoid injury to the sciatic nerve
A function of the spinal cord
Acts as an important reflex center
Least related to the others
Spinothalamic tract
The purpose of myelination
Increase the speed of the nerve impulse
Least descriptive of the vagus nerve
Inflamed vagus nerve causes Bell's palsy
A true statement
The second cranial nerve is a sensory nerve
Most descriptive of the cauda equina
Spinal nerves that emerge from the tail end of the spinal cord
Diagnostically, a needle is inserted between the third and fourth vertebrae into the subarachnoid space to
Obtain a sample of cerebrospinal fluid
Supply voluntary skeletal muscles, causing movement
Somatic motor nerves
A mixed nerve
Contains both sensory and motor fibers
Involuntary response to a stimulus is accomplished by these five structures--- receptor, sensory neuron, integrating center, motor neuron, effector organ
Reflex arc
The effector organ in the knee-jerk or patellar tendon reflex
Quadriceps femoris muscle
Nerve damage
Crutch palsy, Wristdrop, footdrop, Bell's palsy
Sensory nerves
Olfactory,CN I, optic CN VIII
Reflexes
Baroreceptor, withdrawal, pupillary, gag
Sympathetic effects
Thoracolumbar
Paravertebral ganglia
Stressed out and uptight
Adrenergic
Vasomotor tone
Fight or flight
Parasympathetic effects
Feed and breed
Craniosacral outflow
Paradoxical fear "bradying down"
is least description of the oculomotor nerve
Carries sensory info from eyes to occipital lobe (vision)
A consequence of damage to the glossopharyngeal nerve
Loss of the gag reflex and aspiration of food or water into the lungs
Phrenic nerve
Innervates the major breathing muscle
The first three cranial nerves
Are the olfactory, optic, and oculomotor nerves
Who likes to have the sole of his foot stroked
Babinski
Cranial nerves
Olfactory, optic, oculomotor
Plexuses
Cervical, brachial, lumbosacral
Spinal nerves
Phrenic, axillary, sciatic
States of paralysis
Paraplegia, quadriplegia, hemiplegia
The paravertebral ganglia are present in both the parasympathetic nervous system (PNS) and sympathetic (SNS)
False
The preganglionic fibers of the PNS and SNS are cholinergic
True
The postganglionic fibers of the PNS and SNS are cholinergic
False
The postganglionic fibers of the PNS and SNS are adrenergic
False
The preganglionic fibers of the SNS exit the spinal cord at the thoracolumbar region
True
The transmitter for the postganglionic fibers of the SNS is norepinephrine (NE)
True
The transmitter for the postganglionic fibers of the PNS is acetylcholine (ACh)
True
The preganglionic and postganglionic fibers associated with the craniosacral outflow are cholinergic
True
The transmitter of the preganglionic fibers of both the PNS and SNS is ACh
True
Fibers colored green are cholinergic
True
Fibers colored red are adrenergic
True
All autonomic fibers are colored red
False
Preganglionic fibers of the parasympathetic nervous system are longer than the preganglionic fibers of the sympathetic nervous system
True
Drugs that block the effects of ACh affects both the sympathetic and parasympathetic nervous system
True
Drugs that block the effects of NE affects both the sympathetic and parasympathetic nervous systems
False