NERVOUS SYSTEM

Question 1

Organs of PNS:

Answer 1

12 Cranial Nerves

31 Spinal Nerves

Question 2

what are the 31 spinal nerves:

Answer 2

Cervical spinal Nerve - 8 pairs

Thoracic spinal nerves - 12 pairs

Lumbar spinal nerves - 5 pairs

Sacral spinal nerve - 5 pairs

Coccygeal spinal nerve - 1 pair

Question 3

has voluntary innervation WITHOUT interruptions along the course

Answer 3

Somatic NS

Question 4

has involuntary innervation WITH interruptions along the course

Answer 4

Autonomic NS

Question 5

it is where the pre and post ganglionic fibers synapse

not a center of reflex action

Answer 5

Autonomic Ganglia

Question 6

origin of post-ganglionic fibers of CN3 to sphincter pupillae

Answer 6

ciliary ganglion (Parasympathetic outflow)

Question 7

origin of post-ganglionic fibers to dilator pupillae

Answer 7

superior cervical ganglion (Sympathetic outflow)

Question 8

Sympathetic cell bodies of pre-ganglionic neurons are found at:

Answer 8

Thoraco-Lumbar segments of spinal cord

Question 9

Parasympathetic cell bodies of pre-ganglionic neurons are found at:

Answer 9

cranio-sacral parts of NS

Question 10

Weight of brain:

Answer 10

1,345 grams MALE

1,245 grams FEMALE

Question 11

convolutions of the brain:

Answer 11

Gyri / Gyrus

Question 12

shallow grooves of brain

Answer 12

Sulci / sulcus

Question 13

deep grooves at the brain:

Answer 13

Fissures

Question 14

Parts of the Brain:

Answer 14

Cerebrum / cerebral cortex

Cerebellum

Brain stem

Question 15

Largest and most ventral part of the brain

Answer 15

Cerebrum

Question 16

cerebrum is divided into?

Answer 16

2 cerebral hemispheres by the longitudinal fissure

Question 17

functions of Frontal Lobe:

Answer 17

Thinking

planning

Executive Function

MOTOR EXECUTION

Question 18

function of Parietal lobes:

Answer 18

somatosensory perception

Integration of Visual & somato-spatial information

Question 19

functions of Temporal lobes:

Answer 19

Language and Auditory

Long term memory and Emotion

Question 20

Fissures of the cerebrum:

Answer 20

Longitudinal fissure - divides cerebrum to L & R hemisphere

Central Fissure (ROLANDO) - separates Frontal & Parietal

Lateral fissure(SYLVIAN) - separates Temporal from frontal & parietal

Parieto-occipital fissure - separates occipital from parietal

Transverse fissure - separates cerebrum from cerebelluim

Question 21

damage to Extra-pyramidal tract:

Answer 21

spastic paralysis

Question 22

damage to Pyramidal tract:

Answer 22

flaccid paralysis

Question 23

area for short-term memory

Answer 23

Broca’s area

Question 24

area for long term memory:

Answer 24

Temporal lobes

Question 25

Primary Control motor activities

Answer 25

Basal ganglia

Question 26

structure that secretes dopamine:

Answer 26

Substancia Nigra

Question 27

system that controls:

emotion

behavior

motivation

aggression

sexual activity

instinctive response

Answer 27

Limbic System

Question 28

contains the Nuclei of CN#3 & CN#4:

Answer 28

Midbrain

Question 29

Pneumotaxic center (apnea & exhale):

Contains nuclei of CN#5 -CN#8

Answer 29

Pons varolli

Question 30

contains nuclei of CN#9 TO CN#12

Answer 30

Medulla oblongata