Exam 2, Chapter 8, Quiz 10

Front 1

what is gray matter of the CNS?

Back 1

-gray because of cell bodies, dendrites, and synapses

Front 2

what is white matter of the CNS?

Back 2

-white because of myelinated axons, high fattyness

Front 3

draw the frontal section of the brain

Back 3

Front 4

draw the transverse section of the spinal cord

Back 4

Front 5

describe the cerebral cortex

Back 5

Front 6

what are the two important locating landmarks in the cerebral cortex?

Back 6

-lateral sulcus

-central sulcus

Front 7

what are the lobes/cortex areas of the cerebrum?

Back 7

-frontal lobe

-parietal lobe

-occiptal lobe

-temporal lobe

Front 8

what are the sensory areas of the cerebral cortex?

Back 8

olfactory - smell

gustatory - taste

somatosensory - sense of touch

Front 9

where and what is the somatosensory cortex?

Back 9

postcentral gyrus

-aka sensory homunculus (little man)

-parts of the body light up on these parts

-left half of body mapped to right side of cortex, reverse for right

-bigger surface is more representation

Front 10

where and what is the motor cortex?

Back 10

precentral gyrus

-aka motor homunculus

-where all muscle contractions originate

-right muscles mapped to left side, reverse for left

-bigger surface is more repres.

--need more fine movements

Front 11

what does the blood-brain barrier do?

Back 11

protects the CNS from endo- and exotoxins

Front 12

describe the blood-brain barrier

Back 12

-vomiting center location allows the blood-brain barrier to know there are toxins in blood

Front 13

draw the blood-brain barrier

Back 13

-astrocytes causes tight junctions to tighten up

Front 14

describe the spinal cord

Back 14

mixed spinal nerve - carries afferent and efferent info, sensory and muscle

Front 15

draw the spinal cord

Back 15

afferent - bipolar, pseudounipolar

efferent- multipolar

Front 16

draw the flowchart of the cranial nerves

Back 16

Front 17

draw the forebrain cranial nerve flowchart

Back 17

-unique

-relay information directly to forebrain

Front 18

draw the oculomotor cranial nerve flowchart

Back 18

-controls motions of eye

Front 19

draw the trochlear cranial nerve flowchart

Back 19

-controls motions of eye

Front 20

draw the trigeminal cranial nerve flowchart

Back 20

Front 21

draw the abducens cranial nerve flowchart

Back 21

-controls motions of eye

Front 22

draw the facial cranial nerve flowchart

Back 22

Front 23

draw the vestibulocochlear cranial nerve flowchart

Back 23

-if cut lose all hearing and sense of of balance/equilibrium

Front 24

draw the glossopharyngeal cranial nerve flowchart

Back 24

Front 25

draw the vagus cranial nerve flowchart

Back 25

"Vegas"

-vagabond, wanders throughout body

Front 26

draw the accessory cranial nerve flowchart

Back 26

Front 27

draw the hypoglossal cranial nerve flowchart

Back 27

Front 28

draw the reflex arc flowchart

Back 28

Front 29

what is a reflex?

Back 29

automatic response to a sensory stimulus

Front 30

draw the efferent pathway reflex flowchart

Back 30

-autonomic: no control

-somatic: controlling skeletal muscle

Front 31

draw the integration location reflex flowchart

Back 31

Front 32

draw the synapse number reflex flowchart

Back 32

Front 33

draw the when developed reflex flowchart

Back 33

Front 34

what is the muscle spindle stretch reflex

Back 34

knee jerk reflex

Front 35

what is the only monosynaptic reflex?

Back 35

knee jerk reflex/muscle spindle stretch reflex

Front 36

examples of reflex organizations

Back 36

muscle spindle reflex is a: congenital, somatic, spinal cord, monosynaptic reflex

heart beat: congenital, autonomic, polysynaptic

Front 37

draw the flowchart of the knee-jerk reflex

Back 37

aka muscle spindle stretch reflex

Front 38

draw the neural connections of the knee-jerk reflex

Back 38

1) tap on the patellar

2) goes up to afferent pseudounipolar neuron

+ means EPSP

- means IPSP

Front 39

why do we have a muscle spindle stretch reflex?

Back 39

-helps maintain body position (muscle reacts against pushing and shoving)

happens in many muscles across entire body

Front 40

monosynaptic means?

Back 40

afferent and efferent neuron are directly connected

Front 41

draw the flowchart of the withdrawal reflex

Back 41

-causes your body to pull away

Front 42

draw the neural connections of the withdrawal reflex

Back 42

-goes to brain too, but brain isn't making the decision to pull away

Front 43

why do we sleep?

Back 43

not sure exactly why

Front 44

what are the types of sleep?

Back 44

Front 45

chart of the stages of sleep

Back 45

8 hour sleep cycle

Front 46

Back 46

Front 47

write this table

Back 47