Nervous System Part 2 Flashcards

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0
Q

Sulci?

A

Depression in folds of brain.

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1
Q

Gyri?

A

Raised part of folds in brain.

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2
Q

Corpus Callosum?

A

Connect R & L hemisphere in brain.

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3
Q

Frontal Lobe?

A

Primary motor area, pre-central gyrus.

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4
Q

Parietal Lobe?

A

Somatosensory area, sensory to body, post-central gyrus.

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5
Q

Temporal Lobe?

A

Auditory, olfactory, olfactory bulb have short tract to medial temporal lobe, auditory to lateral temporal lobe.

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6
Q

Occipital Lobe?

A

Visual area.

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7
Q

Wernicke’s Area?

A

Interprets spoken words

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8
Q

Broca’s Area?

A

Producing speech, usually L side.

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9
Q

I (1)

A

Olfactory

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10
Q

II (2)

A

Optic

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11
Q

III (3)

A

Occulomotor

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12
Q

IV (4)

A

Trochlear

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13
Q

V (5)

A

Trigeminal: touch, pain, temperature, mechanoreception, chewing, (3 branches-ophthalmic/maxillary/madibular)

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14
Q

VI (6)

A

Abducens

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15
Q

VII (7)

A

Facial: facial expression, taste, mechanoreception, tears, saliva

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16
Q

VIII (8)

A

Vestibulocochlear

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17
Q

IX (9)

A

Glossopharymgeal: tongue-taste, gag, reflex

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18
Q

X (10)

A

Vagus: parasympathetics

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19
Q

XI (11)

A

Accessory (spinal)

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20
Q

XII (12)

A

Hypoglossal

21
Q

General Senses?

A

Tactile, pressure/ vibration, itch, pain, thermal, mechanoreception- found all over the body, don’t have a special sensor.

22
Q

Touch Receptors?

A

Meisner’s corpuscles, merkels discs, ruffini corpuscles.

23
Q

Pacinian Corpuscles?

A

Pressure & vibration.

24
Q

Referred Pain?

A

Pain felt I’m an area overlying an organ distant from stimulated organ or source of the pain.

25
Q

Fast Pain?

A

Rapid, acute, sharp, prickling.

26
Q

Slow Pain?

A

Dull, gradually increasing, chronic, throb.

27
Q

Mechanoreception/ Proprioception?

A

Mechanoreceptors, joint position sense, knowing where your body is in space relative to other parts of your body.

28
Q

Special Senses?

A

Require a special sensory organ, sight sound, taste, smell, equilibrium.

29
Q

Lacrimal Gland?

A

Secretes tears.

30
Q

Lacrimal Duct?

A

Open to surface of eyelid, starts on lateral surface & drains medial to nasolacrimal duct & into nasal cavity.

31
Q

Lysozyme?

A

Enzyme to kill bacteria.

32
Q

Eyeball?

A

3 layers/ tunics: fibrous, vascular, nervous.

33
Q

Cornea?

A

Fibrous, transparent coat over iris.

34
Q

Conjunctiva?

A

Lines eyelid & anterior surface of eye, pinkeye = conjunctivitis.

35
Q

Sclera?

A

White of the eye, fibrous, dense connective tissue, gives shape.

36
Q

Retina?

A

Nerve layer, inner coat, lines posterior surface of eye, sensory organ.

37
Q

Choroid?

A

Vascular layer, thin membrane lines, internal surface of sclera, retina sits on top of choroid.

38
Q

Lens?

A

Transparent part that focuses light onto retina.

39
Q

Iris?

A

Colored part, circular & radial muscles, determines how much light enters eye.

40
Q

Pupil?

A

Hold in center of iris.

41
Q

Rods?

A

Gray, black & white, dim light, visual activity.

42
Q

Cones?

A

Color vision.

43
Q

Fovea Centralis?

A

Small depressions in center of retina where cones most concentrated.

44
Q

Optic Disc?

A

Axons of cells extend into small area of retina, forms blind spot.

45
Q

Vitrious Body?

A

Clear, jellylike substance in inner eye.

46
Q

Equilibrium- Static Equilibrium?

A

Utricle & saccule.

47
Q

Equilibrium- Dynamic?

A

Semicircular canals.

48
Q

Cochlear?

A

Snail shell shape spiral canal in bone, contains organ of corti.

49
Q

Organ of Corti?

A

Organ of hearing, ciliated receptor cells on membrane inside cochlea.

50
Q

CNVII-> Cerebellum?

A

Message enters to the brainstem, the medulla oblongata & cerebellum coordinate information with input from the eyes & mechanoreceptors.