Nervous System Part 2

Question 0

Sulci?

Answer 0

Depression in folds of brain.

Question 1

Gyri?

Answer 1

Raised part of folds in brain.

Question 2

Corpus Callosum?

Answer 2

Connect R & L hemisphere in brain.

Question 3

Frontal Lobe?

Answer 3

Primary motor area, pre-central gyrus.

Question 4

Parietal Lobe?

Answer 4

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

Question 5

Temporal Lobe?

Answer 5

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

Question 6

Occipital Lobe?

Answer 6

Visual area.

Question 7

Wernicke’s Area?

Answer 7

Interprets spoken words

Question 8

Broca’s Area?

Answer 8

Producing speech, usually L side.

Question 9

I (1)

Answer 9

Olfactory

Question 10

II (2)

Answer 10

Optic

Question 11

III (3)

Answer 11

Occulomotor

Question 12

IV (4)

Answer 12

Trochlear

Question 13

V (5)

Answer 13

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

Question 14

VI (6)

Answer 14

Abducens

Question 15

VII (7)

Answer 15

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

Question 16

VIII (8)

Answer 16

Vestibulocochlear

Question 17

IX (9)

Answer 17

Glossopharymgeal: tongue-taste, gag, reflex

Question 18

X (10)

Answer 18

Vagus: parasympathetics

Question 19

XI (11)

Answer 19

Accessory (spinal)

Question 20

XII (12)

Answer 20

Hypoglossal

Question 21

General Senses?

Answer 21

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

Question 22

Touch Receptors?

Answer 22

Meisner’s corpuscles, merkels discs, ruffini corpuscles.

Question 23

Pacinian Corpuscles?

Answer 23

Pressure & vibration.

Question 24

Referred Pain?

Answer 24

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

Question 25

Fast Pain?

Answer 25

Rapid, acute, sharp, prickling.

Question 26

Slow Pain?

Answer 26

Dull, gradually increasing, chronic, throb.

Question 27

Mechanoreception/ Proprioception?

Answer 27

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

Question 28

Special Senses?

Answer 28

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

Question 29

Lacrimal Gland?

Answer 29

Secretes tears.

Question 30

Lacrimal Duct?

Answer 30

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

Question 31

Lysozyme?

Answer 31

Enzyme to kill bacteria.

Question 32

Eyeball?

Answer 32

3 layers/ tunics: fibrous, vascular, nervous.

Question 33

Cornea?

Answer 33

Fibrous, transparent coat over iris.

Question 34

Conjunctiva?

Answer 34

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

Question 35

Sclera?

Answer 35

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

Question 36

Retina?

Answer 36

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

Question 37

Choroid?

Answer 37

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

Question 38

Lens?

Answer 38

Transparent part that focuses light onto retina.

Question 39

Iris?

Answer 39

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

Question 40

Pupil?

Answer 40

Hold in center of iris.

Question 41

Rods?

Answer 41

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

Question 42

Cones?

Answer 42

Color vision.

Question 43

Fovea Centralis?

Answer 43

Small depressions in center of retina where cones most concentrated.

Question 44

Optic Disc?

Answer 44

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

Question 45

Vitrious Body?

Answer 45

Clear, jellylike substance in inner eye.

Question 46

Equilibrium- Static Equilibrium?

Answer 46

Utricle & saccule.

Question 47

Equilibrium- Dynamic?

Answer 47

Semicircular canals.

Question 48

Cochlear?

Answer 48

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

Question 49

Organ of Corti?

Answer 49

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

Question 50

CNVII-> Cerebellum?

Answer 50

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