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Anatomy > Anatomy Test 2 > Flashcards

Anatomy Test 2 Flashcards

1
Q

CN I

A

olfactory nerve, sensory

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2
Q

CN II

A

optic nerve, sensory

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3
Q

CN III

A

oculomotor, motor

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4
Q

CN IV

A

Trochlear, motor

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5
Q

CN V

A

Trigeminal nerve, sensory and motor

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6
Q

CN VI

A

Abducens, motor

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7
Q

CN VII

A

Facial nerve, motor and sensory

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8
Q

CN VIII

A

vestibular cochlear nerve, sensory

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9
Q

CN IX

A

glossopharyngeal nerve, motor and sensory

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10
Q

CN X

A

Vagus nerve, motor and sensory

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11
Q

CN XI

A

accessory nerve, motor

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12
Q

CN XII

A

hypoglossal merve, motor

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13
Q

3 divisions of the trigeminal nerve

A

ophthalmic division (CN V1), maxillary division (CN V2), mandibular division(CN V3)

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14
Q

Components of the brain

A

Cerebrum, cerebellum, and brainstem

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15
Q

Divisions of the nervous system

A

Central(brain + spinal cord) and peripheral(sensory and motor)

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16
Q

4 regions of the cortex

A

Motor, visual, somato sensory, auditory

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17
Q

Broca area

A

Works in conjunction with the motor cortex to allow us to speak

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18
Q

Wernicke’s area

A

Works with auditory cortex to allow us to understand spoken language

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19
Q

Function of CN I

A

Olfactory bulb to cerebrum, sense of smell

20
Q

Function of CN II

A

Optic nerve to optic chiasm - 1/2 of info from each eye crosses to synchronize in visual cortex

21
Q

Function of CN III

A

Eye movement and pupil dilation

22
Q

function of CN IV

A

Eye movement downward and outward

23
Q

Function of CN V

A

Motor to mastication muscles (master, temporalis) sensory to entire face- nasal and oral cavities, teeth, some scalp

24
Q

Function of CN VI

A

Lateral eye movement

25
Q

Function of CN VII

A

Facial expression muscles, tear production and salivation, taste to anterior 2/3 of tongue

26
Q

Function of CN VIII

A

Hearing and equilibrium (balance) → vestibula

27
Q

Function of CN IX

A

Motor: pharynx muscle
Sensory: taste posterior 1/3 of tongue, increases salivation , gag reflex

28
Q

Function of CN X

A

Motor: most swallowing and vocal muscles
Sensory: taste back of mouth
Controls heart rate gi tract, sweating, and inflammatory response

29
Q

Function of CN XI

A

Innovates sternocleidomastoid and upper trapezius muscles

30
Q

Function of CN XII

A

most tongue muscles
If there is damage tongue points to damaged side

31
Q

Divisions of the spinal cord

A

Cervical nerves, thoracic nerves, lumbar nerves, and sacral nerves

32
Q

What are the three plexuses?

A

Cervical plexus (C1-C5): 8 nerves, neck muscles, diaphragm
Brachial plexus (C5-T1): 12 nerves, upper limb muscles
Lumbosachral plexus (L1-S4): 5 nerves, lower limbs and pelvic girdle muscles

33
Q

What nerves make up the brachial plexus?

A

Anterior: musculocutaneous nerve and median nerve
Posterior: axillary nerve, ulnar nerve, radial nerve

34
Q

Nerves in lumbosachral plexus

A

Femoral nerve (anterior thigh), obturator nerve (medial thigh), sciatic nerve (posterior thigh and entire leg)

35
Q

3 layers of the eye

A

Fibrous outer layer, vascular middle layer, neural inner layer

36
Q

Parts of the fibrous outer layer of the eye

A

Sclera and cornea

37
Q

Parts of the vascular middle layer of the eye

A

Choroid, ciliary body, iris

38
Q

Parts of the neural inner layer of the eye

A

Retina

39
Q

Sympathetic vs parasympathetic nervous system

A

Parasympathetic- rest and digest
Sympathetic - fight or flight

40
Q

Muscles of the iris

A

2 muscles innervated by the autonomic nervous system
Sphincter pupillae: muscle contracts, pupil contracts
Dilator pupillae: muscle contracts, pupil dilates

41
Q

6 extrinsic eye muscles

A

Superior oblique, inferior oblique, medial rectus, lateral rectus, superior rectus, inferior rectus

42
Q

3 regions of the ear

A

External, middle, inner

43
Q

What are ossicles?

A

Mechanically transduce and amplify sound waves

44
Q

How does cochlea sense sound

A
  1. Sound waves vibrate ear drum
  2. Ossicles amplify and vibrate oval window
  3. Pressure waves move through perilymph
  4. Specialized cells (hair cells) in cochlear duct bend and signal is transmitted
45
Q

Top and bottom of the heart

A

Apex : pointed inferior end
Base: rounded superior end

46
Q

What does the left side of the heart do?

A

Pumps blood to body: systematic circulation

47
Q

What does the right side of the heart do?

A

Pumps blood to lungs - pulmonary circulation

Anatomy (5 decks)

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