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