Quiz 7

Question 1

Cranial nerve order (5,7-12)

Answer 1

Trigeminal, facial, vestibulocochlear, glossopharyngeal, vagus, accessory, hypoglossal

some, some, ssss, some, some, mmm, mmm

the favorite verse goes very aaa hhh!!!

Question 2

trigeminal nerve branches (v1, v2, v3)

Answer 2

ophthalmic, maxillary, mandibular

some

Question 3

within CN 5

ophthalmic branch

Answer 3

through superior orbital fissure, eyeball, frontal sinus, nose, scalp

sensory

Question 4

within CN 5

maxillary branch

Answer 4

foramen rotundummiddle face, upper lip, teeth

sensory

max is in the middle

Question 5

within CN 5

mandibular branch

Answer 5

foramen ovale jaws

MMM

Question 6

facial nerve

Answer 6

7, taste info, face muscles, tears, saliva
1. petrous temporal
2. int. aud. meatus
3. stylomastoid foramen

some

pentrous

Question 7

vestibulocochlear nerve

Answer 7

• 8,
• auditory (cochlea)
• sensory (vestibular apparatus - head rotation)
• passes through int. auditory meatus

sensory

Question 8

glossopharyngeal nerve

Answer 8

• 9
• sensory: tongue, pharynx, tonsils, middle ear
• motor: pharynx, tonue, saliva (parotid)
• jugular foramen

some

a parrot spits

Question 9

vagus

Answer 9

• 10
• parasympathetic auto NS
• blood, heart
• jugular foramen

some

Question 10

accessory nerve

Answer 10

• 11
• shrug shoulders
• medulla, c1-c5, foramen magnum, medullary roots, jugular foramen

motor

(howard stern is a trapeze artist)*

Question 11

hypoglossal nerve

Answer 11

• 12
• tongue muscles
• hypoglossal canal of occipital bone
• sleep apnea treatments

motor

Question 12

cranial nerve nuclei

Answer 12

afferent = sensory
efferent = motor

Question 13

cranial nerve nuclei

edinger-westphal

Answer 13

occulomotor, dialate pupil

Question 14

cranial nerve nuclei

salvitory

Answer 14

facial + glossopharyngal nerve

Question 15

cranial nerve nuclei

nucleus solitarius

Answer 15

• sensory info in medulla to taste
• cn 7, 9, 10
• gag, cough, reflexes

Question 16

parts of brain stem

Answer 16

midbrain (mesencephalon), pons, medulla (mylencephalon)

Question 17

parts of midbrain

Answer 17

1. cereberal peduncles (motor and sensory path to cerebral cortex from cerebellum)
2. substantia nigra (dopamine to caudate nucleus)
3. ventral tegmental area (dopamine to nucleus accumbens)
4. red nuclei (motor, iron)
5. occulomotor + trochlear nuclei
6. periaqueductal gray (pain)
7. tectum
   - visual and audtiory reflexes

a smart uncle travels, caudate nucleus, nucleus accumbens, 3,4, iron man

gray’s anatomy is painful

Question 18

pons

Answer 18

• projection white fiber tracts
• breathing
• cerebral peduncles
• CN nuclei 5,6,7
• reticular foramen (arousal, sleep) (raphe nuc - serotonin)
• locus coerulus - norepinephrine (shift attention)

Question 19

medulla

Answer 19

• primitive functions (cough, sneeze, blood pressure)
• decussation of pyramids (contralateral)

Question 20

medulla parts

Answer 20

1. ventral median sulcus (fissure separating pyramids)
2. olive (motor and sound)
3. CN nuc 8-12 (same side injury)
4. obex (connection of CSF 4th vent)
5. gracile fasc.
6. tuberculum gracile
7. cunate fasc.
8. tuberculum cuneatum

gracile = lower body
cuneate = upper
fasc = path, info
tuberculum = nucleus - VPL thalamus

Question 21

ventral and dorsal roots

Bell-Magendie Law

Answer 21

The ventral or anterior root = outgoing motor fibers
The dorsal or posterior root = incoming sensory fibers

Question 22

dorsal root ganglion

Answer 22

cell bodies of sensory nerves

swelling

Question 23

matter

Answer 23

white = myelinated
grey = unmyelinated

Question 24

spine regions

Answer 24

Cervical, Thoracic, Lumbar, Sacral

CTLS

Question 25

Cervical region

Answer 25

Supplies part of the head, neck, hands, part of the arms. | head, neck, hands, arms

Question 26

thoracic

Answer 26

Supplies trunk and part of the arms | trunk, arms

Question 27

lumbar

Answer 27

Supplies hips, anterior part of the leg, top of the foot. | hips, front leg, top foot

Question 28

sacral

Answer 28

Supplies groin, posterior part of the leg, bottom of the foot. | groin, back leg, bottom foot

Question 29

Dermatome

Answer 29

Area of the skin supplied by sensory fibers of the spinal nerves.

Question 30

Organization of the White Matter of the Spinal Cord

Answer 30

**sensory** information = **ascends** through the spinal cord in **dorsal** and **lateral** areas of the spinal cord. **Motor** information = **descends** from the brain in motor neurons through **ventral** and **medial** portions of the spinal cord. | saddle

Question 31

medial lemniscal pathway

Answer 31

ascends through the posterior column and carries information about proprioception (awareness of body), vibration, and fine discriminative touch. | awarenss of body, vibrate, touch

Question 32

spinothalamic pathway

Answer 32

ascends through the anterolateral system and carries pain and temperature information. | pain and temp

Question 33

motor tracts

Answer 33

desecending, efferent, pyramidal, extrapyramidal

Question 34

sensory tracts

Answer 34

acesnding, afferent, dorsal column medial lemiscus system, spinocerebllar tracts, anterolateral system

Question 35

Rexed’s laminae

Answer 35

architectural classification of the structure of the grey matter of the spinal cord

Question 36

spinal cord protection

Answer 36

vertebral column, meninges, cerebrospinal fluid, and vertebral ligaments

Question 37

cervical vertebrea

Answer 37

* **atlas** (C1 - support the skull.) * **axis** (C2 - **dens** that serves as a pivot for the skull. * **Transverse foramen**: opening for the vertebral arteries * **Vertebral foramen**: contains the spinal cord.

Question 38

caudal spinal cord

Answer 38

* **Conus medullaris:** the tapered, terminus of the spinal cord at the L1 or L2 region. * **Cauda equina:** bundle of spinal nerves and spinal nerve roots from L2-L5 and the sacral and coccygeal regions of the spinal cord. * **Filum terminale**: thin strand of the spinal meninges that anchors the conus medullaris to the first segment of the coccyx.