The nervous system

Question 1

CNS consists of

Answer 1

brain and spinal cord

Question 2

PNS consists of

Answer 2

peripheral ganglia and nerves

Question 3

What do cranial nerves serve?

Answer 3

head region

Question 4

What do spinal nerves serve?

Answer 4

serve neck, trunk and extremities

Question 5

somatic

Answer 5

neurons that supply body wall structures: skin and skeletal muscles

Question 6

autonomic

Answer 6

sympathetic and parasympathetic neurons that supply visceral areas (smooth muscles, glands, cardiac)

Question 7

efferent

Answer 7

motor components

Question 8

afferent

Answer 8

sensory, but not necessarily conscious perception

Question 9

how are neurons postmitotic cells?

Answer 9

they don’t divide further

Question 10

three types of neuron structures

Answer 10

bipolar, unipolar and multipolar

Question 11

three functional classifications of neurons

Answer 11

sensory (afferent), motor (efferent), and interneurons

Question 12

what are 99% of neurons

Answer 12

interneurons

Question 13

What is nucleus in CNS?

Answer 13

cluster of neurons cell bodies

Question 14

what is tract in CNS?

Answer 14

group of axons

Question 15

what is ganglion in PNS?

Answer 15

cluster of neuron cell bodies

Question 16

What is nerve in PNS?

Answer 16

group of axons

Question 17

grey matter

Answer 17

cell bodies

Question 18

white matter

Answer 18

axons

Question 19

plexus

Answer 19

region where mixing of nerve fibers into new groups occurs

Question 20

what are the main components of the brain?

Answer 20

cerebral cortex, cerebellum, spinal cord, corpus callosum, brain stem?

Question 21

what makes up the brain stem?

Answer 21

midbrain, pons, medulla

Question 22

what is each cerebral hemisphere divided into?

Answer 22

frontal, parietal, occipital, and temporal lobes

Question 23

frontal lobe

Answer 23

primary motor cortex, prefrontal working memory and speech

Question 24

parietal lobe

Answer 24

primary somatosensory cortex

Question 25

occipital lobe

Answer 25

primary visual cord

Question 26

temporal lobe

Answer 26

primary auditory cortex, important for memory

Question 27

how many cranial nerves are there?

Answer 27

12

Question 28

where do the cranial nerves originate? where do they lead?

Answer 28

brain/ lead to head, neck, trunk

Question 29

first three cranial nerves

Answer 29

olfactory (1), optic (2), oculomotor (III)

Question 30

olfactory

Answer 30

sensory/smell

Question 31

optic

Answer 31

sensory/vision

Question 32

oculomotor

Answer 32

motor-eye movements | parasympathetic constriction of pupil

Question 33

2nd four cranial nerves

Answer 33

trochlear (IV), trigeminal (V), abducens (VI), and facial (VII)

Question 34

trochlear nerve

Answer 34

motor, eye muscle

Question 35

trigeminal (V(

Answer 35

motor muscle of mastication/ sensory head and facer

Question 36

abducens

Answer 36

motor-eye mucsle

Question 37

facial (VII)

Answer 37

motor muscles of face, parasympathetic lacrimal, salivary and nasal glands

Question 38

cranial nerves eight and nine?

Answer 38

vestibulocochlear and glossopharyngeal

Question 39

vestibulocochlear

Answer 39

balance (vestibular, head position and movement, hearing (cochlear)

Question 40

glossopharyngeal (IX)

Answer 40

some taste fibres and other sensory fibres lining throat/ parasympathetic involved with blood pressure.

Question 41

10 11, 12 cranial nerves

Answer 41

vagus, accessory, hypoglossal

Question 42

vagus

Answer 42

motor to larynx pharynx and soft palate for swallowing, parasympathetic to gut for gastric secretion and moment. slows heart rate. afferent from thoracic and abdominal visceral

Question 43

accesory

Answer 43

motor, sternocleidomastoid and trapezius

Question 44

hypoglossal

Answer 44

tongue muscles

Question 45

cranial nerves 10-12

Answer 45

vagus, accessory, hypoglossal

Question 46

vagus

Answer 46

motor to larynx, pharynx, and soft palate. parasympathetic to gut for gastric secretion and movement. slows heart rate. afferent from thoracic and abdominal viscera.

Question 47

accessory nerve

Answer 47

motor, sternodeidomastoid and trapezius

Question 48

hypoglossal

Answer 48

tongue muscles