5.6 Organization of Nervous System Flashcards Preview

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Flashcards in 5.6 Organization of Nervous System Deck (39):
1

Produces myelin

Glial cells

2

Glial cells in the CNS

Oligodendrocytes

3

Glial cells in the PNS

Schwann cells

4

Number of pairs of spinal nerves and cranial nerves

31 and 12

5

Collection of nerve cell bodies in the CNS

Nuclei

6

Collection of nerve cell bodies in the PNS

Ganglion

7

Matter which represents predominantly the myelinated axons or nerve fibers

White matter

8

Matter which represents nerve cell bodies without myelin sheath

Gray matter

9

Nerve fibers with common origin and termination

Tracts

10

3 major parts of brain and their subdivisions

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

11

Separates frontal from parietal lobes

Central sulcus of rolando

12

Separates temporal from frontal and parietal lobe

Lateral fissure of sylvius

13

Lobe that is revealed upon separation of lateral sulcus

Insular lobe

14

Gyrus at dorsal and ventral area of limbic lobe

Cingulate gyrus and Parahippocampal gyrus

15

Primary motor cortex and location

BA 4
Precentral gyrus

16

Brodman's area: Primary somatosensory cortex and location

BA 3,1,2
Postcentral gyrus

17

Brodman's area: Primary auditory cortex and location

BA 41,42
Anterior transverse temporal gyrus

18

Brodman's area: Premotor association area

BA 6
Anterior to precentral gyrus

19

Brodman's area: Visual association area and location

18, 19
Around calcarine area

20

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

44,45
Inferior frontal gyrus

21

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

22
Posterior part of superior temporal gyrus

22

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

Thalamus

23

White matter which covers the thalamus superiorly and laterally

Stratum zonale
External medullary lamina

24

Divides thalamus into 3 parts

Internal medullary lamina

25

Controls and integrates ANS and endocrine systems

Hypothalamus

26

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

Basal nuclei

27

Major nuclei (corpus striatum)

Caudate nucleus
Putamen
Globus pallidus

28

Forms the bulbar region of brain stem

Pons and medulla oblongata

29

Two dorsal columns of the brain stem

Fasciculus gracilis and cuneatus

30

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

4th ventricle

31

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

Obex

32

Border of spinal cord at birth and in adult life

L2-L3
L1-L2

33

Rexed laminae in dorsal horn

lamina I-VI

34

Rexed lamina in intermediate gray

Lamina VII

35

rexed lamina in ventral horn

VIII AND IX

36

Lamina surrounding central canal

Lamina X

37

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

Lamina ix

38

Lamina with high concentrations of substance p and opiate receptors

Laimna i and ii

39

Lamina forming substantia gelatinosa for transmission of pain stimuli

Lamina ii & iii