5.6 Organization of Nervous System Flashcards

1
Q

Produces myelin

A

Glial cells

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2
Q

Glial cells in the CNS

A

Oligodendrocytes

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3
Q

Glial cells in the PNS

A

Schwann cells

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4
Q

Number of pairs of spinal nerves and cranial nerves

A

31 and 12

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5
Q

Collection of nerve cell bodies in the CNS

A

Nuclei

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6
Q

Collection of nerve cell bodies in the PNS

A

Ganglion

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7
Q

Matter which represents predominantly the myelinated axons or nerve fibers

A

White matter

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8
Q

Matter which represents nerve cell bodies without myelin sheath

A

Gray matter

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9
Q

Nerve fibers with common origin and termination

A

Tracts

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10
Q

3 major parts of brain and their subdivisions

A

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

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11
Q

Separates frontal from parietal lobes

A

Central sulcus of rolando

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12
Q

Separates temporal from frontal and parietal lobe

A

Lateral fissure of sylvius

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13
Q

Lobe that is revealed upon separation of lateral sulcus

A

Insular lobe

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14
Q

Gyrus at dorsal and ventral area of limbic lobe

A

Cingulate gyrus and Parahippocampal gyrus

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15
Q

Primary motor cortex and location

A

BA 4Precentral gyrus

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16
Q

Brodman’s area: Primary somatosensory cortex and location

A

BA 3,1,2Postcentral gyrus

17
Q

Brodman’s area: Primary auditory cortex and location

A

BA 41,42Anterior transverse temporal gyrus

18
Q

Brodman’s area: Premotor association area

A

BA 6Anterior to precentral gyrus

19
Q

Brodman’s area: Visual association area and location

A

18 19Around calicrine area

20
Q

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

A

44,45Inferior frontal gyrus

21
Q

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

A

22Posterior part of superior temporal gyrus

22
Q

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

A

Thalamus

23
Q

White matter which covers the thalamus superiorly and laterally

A

Stratum zonaleExternal medullary lamina

24
Q

Divides thalamus into 3 parts

A

Internal medullary lamina

25
Q

Controls and integrates ANS and endocrine systems

A

Hypothalamus

26
Q

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

A

Basal nuclei

27
Q

Major nuclei (corpus striatum)

A

Caudate nucleusPutamenGlobus pallidus

28
Q

Forms the bulbar region of brain stem

A

Pons and medulla oblongata

29
Q

Two dorsal columns of the brain stem

A

Fasciculus gracilis and cuneatus

30
Q

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

A

4th ventricle

31
Q

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

A

Obex

32
Q

Border of spinal cord at birth and in adult life

A

L2-L3L1-L2

33
Q

Rexed laminae in dorsal horn

A

lamina I-VI

34
Q

Rexed lamina in intermediate gray

A

Lamina VII

35
Q

rexed lamina in ventral horn

A

VIII AND IX

36
Q

Lamina surrounding central canal

A

Lamina X

37
Q

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

A

Lamina ix

38
Q

Lamina with high concentrations of substance p and opiate receptors

A

Laimna i and ii

39
Q

Lamina forming substantia gelatinosa for transmission of pain stimuli

A

Lamina ii & iii