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54 Cards in this Set
- Front
- Back
oh oh oh to touch and feel virgin girls vaginas and hymens
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oh oh oh to touch and feel virgin girls vaginas and hymens
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what is the 1st cranial nerve?
what fibers is it made up of? |
olfactory
- sensory special (smell) |
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what is the 2nd cranial nerve?
what fibers is it made up of? |
optic
- sensory- special (vision) |
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what is the 3rd cranial nerve?
what fibers is it made up of? |
oculomotor
- motor |
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what is the 4th cranial nerve?
what fibers is it made up of? |
trochlear
- motor |
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what is the 5th cranial nerve?
what fibers is it made up of? what are the 3 branches? |
trigeminal
- mixed (sensory and motor) - ophthalmic branch - maxillary branch - mandibular branch |
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what is the 6th cranial nerve?
what fibers is it made up of? |
abducens
- motor |
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what is 7th cranial nerve?
what fibers is it made up of? |
facial
- mixed (motor, sensory, special) (taste) |
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what is the 8th cranial nerve?
what fibers is it made up of? |
vestibulocochlear
- sensory, special (balance and hearing) |
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what is the 9th cranial nerve?
what fibers is it made up of? |
glossopharyngeal
- mixed: motor, sensory, special- sensory (taste) |
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what is the 10th cranial nerve? what fibers is it made up of?
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vagus
- mixed- motor, sensory, special- sensory ( taste) |
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what is the 11th cranial nerve?
what fibers is it made up of? |
accessory
- motor |
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what is the 12th cranial nerve?
what fibers is it made up of? |
hypoglossal
-motor |
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found in vertebral canal surrounded by meninges
- continuous with medulla of brain stem at foramen magnum - tapers to conus medullaris ends at intervertebral disc between lumbar V1 and lumbar V2 |
spinal cord
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what are all nerve plexuses formed by?
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ventral primary rami
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why is there an increase in gray matter in cervical and lumbar spinal cord?
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to innervate limbs
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how many spinal cord segments are there?
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31 segments-- one for each spinal nerve
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this is the sensory root of spinal cord
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dorsal root
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this is motor root of spinal cord
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ventral root
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what kind of nerve is ventral primary ramus?
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mixed nerve
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what kind of nerve is spinal nerve?
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mixed
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what kind of nerve is dorsal ramus?
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mixed
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each spinal cord segment has what?
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- pair of dorsal roots (sensory axons)
- dorsal root ganglia- sensory neuron cell bodies - pair of ventral roots (motor axons) |
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sensory and motor roots unite distal to dorsal root ganglion emerge from.....
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intervertebral foramina
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what is inferior extension of ventral and dorsal roots?
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cauda equina
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specialized membranes that provide physical stability and shock absorption
3 layers |
spinal meninges
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what is the different between cranial meninges and spinal meninges?
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epidural space in spinal meninges has fat and veins in it
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this is made up of pia mater
- originates at tip of conus medullaris - descends to SV2 - found in suarachnoid space |
filum terminalis
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where does the spinal cord end?
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conus medullaris
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what is cauda equina made up of?
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dorsal roots and ventral roots
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how are the 31 pairs of spinal nerves divided?
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8 cervical
12 thoracic 5 lumbar 5 sacral 1 coccygeal |
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this ramus is sensory/ motor innervation to skin and muscles of back
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dorsal ramus
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this ramus is sensory/ motor innervation to skin and muscles of ventrolateral body surface body wall structures, limbs
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ventral primary ramus
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area of skin innervated by one of the spinal nerves
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dermatome
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what are hte 4 major nerve plexuses?
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1. cervical
2. brachial 3. lumbar 4. sacral |
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what are the terminal branches of the brachial plexus?
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1. median nerve
2. ulnar nerve 3. musculocutaneous nerve 4. radial nerve 5. axillary nerve |
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this nerve innervates deltoid and teres minor muscles
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axillary
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this nerve innervates coracobrachialis, biceps brachii, brachialis
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musculocutaneous
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this nerve innervates triceps brachii, brachioradialis, extensors of wrist and digits, abductor pollicis longus and supinator muscles
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radial nerve
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this nerve innervates
- pronator teres - flexor carpi radialis - flexor digitorum superficialis - lateral 1/2 of flexor digitorum profundus - flexor pollicis longus - abductor pollicis brevis - flexor pollicis brevis - opponens pollicis muscles |
median nerve
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this nerve innervates
- flexor carpi ulnaris - medial 1/2 of flexor digiorum profundus - flexor abductor digiti minini - abductor digiti minini -opponens digiti minini -adductor pollicis - all palmar and dorsal interossei |
ulnar nerve
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the brachial plexus is made up of which spinal cord segments?
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C5- T1
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what are the 2 nerves of the lumbar plexus
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- femoral nerve
-obturator nerve |
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what are the 5 nerves of the sacral plexus?
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1. superior gluteal nerve
2. inferior gluteal nerve 3. sciatic nerve 4. tibial nerve 5. common fibular nerve |
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this nerve innervates
- quadricep -sartorius |
femoral nerve
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this nerve innervates
- adductor magnus -adductor longus -adductor brevis -gracilis |
obturator nerve `
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this nerve innervates
- gluteus maximus |
inferior gluteal nerve
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this nerve innervates
- gluteus medius, gluteal minimus, tensor fascia latae muscle |
superior gluteal nerve
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this nerve innervates
-semimembranous - semitendinous -1/2 adductor magnus -1/2 biceps femoris -gastrocenius -soleus -posterior tibalis -flexor digitorum longus - flexor hallicus longus |
tibial
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this nerve innervates
- fibularis longus -fibularis brevis -tibalis anterior -extensor digitorum -extensor hallicis |
fibular nerve
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what nerve is in cervical plexus?
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phrenic nerve
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what spinal cord segments does the cervical plexus arise from?
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C3-C5
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what spinal cord segments does the lumbar plexus arise from?
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t12-l4
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what spinal cord segments does the sacral plexus arise from?
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L4-S4
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