5.6 Organization of Nervous System

Question 1

Produces myelin

Answer 1

Glial cells

Question 2

Glial cells in the CNS

Answer 2

Oligodendrocytes

Question 3

Glial cells in the PNS

Answer 3

Schwann cells

Question 4

Number of pairs of spinal nerves and cranial nerves

Answer 4

31 and 12

Question 5

Collection of nerve cell bodies in the CNS

Answer 5

Nuclei

Question 6

Collection of nerve cell bodies in the PNS

Answer 6

Ganglion

Question 7

Matter which represents predominantly the myelinated axons or nerve fibers

Answer 7

White matter

Question 8

Matter which represents nerve cell bodies without myelin sheath

Answer 8

Gray matter

Question 9

Nerve fibers with common origin and termination

Answer 9

Tracts

Question 10

3 major parts of brain and their subdivisions

Answer 10

Forebrain-cerebrum, diencephalonMidbrainHindbrain-pons, cerebellum, medulla oblongata

Question 11

Separates frontal from parietal lobes

Answer 11

Central sulcus of rolando

Question 12

Separates temporal from frontal and parietal lobe

Answer 12

Lateral fissure of sylvius

Question 13

Lobe that is revealed upon separation of lateral sulcus

Answer 13

Insular lobe

Question 14

Gyrus at dorsal and ventral area of limbic lobe

Answer 14

Cingulate gyrus and Parahippocampal gyrus

Question 15

Primary motor cortex and location

Answer 15

BA 4

Precentral gyrus

Question 16

Brodman’s area: Primary somatosensory cortex and location

Answer 16

BA 3,1,2

Postcentral gyrus

Question 17

Brodman’s area: Primary auditory cortex and location

Answer 17

BA 41,42

Anterior transverse temporal gyrus

Question 18

Brodman’s area: Premotor association area

Answer 18

BA 6

Anterior to precentral gyrus

Question 19

Brodman’s area: Visual association area and location

Answer 19

18, 19

Around calcarine area

Question 20

Brodman’s area: Motor speech area (broca) and location

Answer 20

44,45

Inferior frontal gyrus

Question 21

Brodman’s area: Auditory association area (wernicke) and location

Answer 21

22

Posterior part of superior temporal gyrus

Question 22

Functions as a relay center and is the largest part of diencephalon

Answer 22

Thalamus

Question 23

White matter which covers the thalamus superiorly and laterally

Answer 23

Stratum zonale

External medullary lamina

Question 24

Divides thalamus into 3 parts

Answer 24

Internal medullary lamina

Question 25

Controls and integrates ANS and endocrine systems

Answer 25

Hypothalamus

Question 26

Group of neurons involved in control of motor activity located in deep cerebral hemispheres

Answer 26

Basal nuclei

Question 27

Major nuclei (corpus striatum)

Answer 27

Caudate nucleus Putamen Globus pallidus

Question 28

Forms the bulbar region of brain stem

Answer 28

Pons and medulla oblongata

Question 29

Two dorsal columns of the brain stem

Answer 29

Fasciculus gracilis and cuneatus

Question 30

The space between the brainstem and cerebellum forming the diamond shaped floor called rhomboid fossa

Answer 30

4th ventricle

Question 31

Caudal end of the 4th ventricle and continues as the central canal

Answer 31

Obex

Question 32

Border of spinal cord at birth and in adult life

Answer 32

L2-L3 | L1-L2

Question 33

Rexed laminae in dorsal horn

Answer 33

lamina I-VI

Question 34

Rexed lamina in intermediate gray

Answer 34

Lamina VII

Question 35

rexed lamina in ventral horn

Answer 35

VIII AND IX

Question 36

Lamina surrounding central canal

Answer 36

Lamina X

Question 37

Lamina containing alpha motor neurons to straited muscles and hamma motor neurons

Answer 37

Lamina ix

Question 38

Lamina with high concentrations of substance p and opiate receptors

Answer 38

Laimna i and ii

Question 39

Lamina forming substantia gelatinosa for transmission of pain stimuli

Answer 39

Lamina ii & iii