CNS

Question 1

functions of the Brian are _

Answer 1

lateralised

Question 2

left hemisphere

Answer 2

logic, number, language (processes the sensory and motor pathways for the right side of the body)

Question 3

right hemisphere

Answer 3

creativity, imagination, rhythm (processes the sensory and motor pathways for the left side of the body)

Question 4

how are the two brain hemispheres joined

Answer 4

corpus callosum

Question 5

3 main brain constituents

Answer 5

forebrain, midbrain, hindbrain

Question 6

forebrain composed of

Answer 6

cerebrum, thalamus, hypothalamus

Question 7

hindbrain composed of

Answer 7

pons, medulla, cerebellum

Question 8

brainstem composed of

Answer 8

midbrain, pons, medulla

Question 9

pons role

Answer 9

consciousness and posture

Question 10

medulla role

Answer 10

Basic life sustaining functions e.g HR and breathing

Question 11

midbrain role

Answer 11

eye movements and the auditory system

Question 12

how is the cerebellum connected to the Brian stem

Answer 12

peduncles

Question 13

cerebellum role

Answer 13

motor functions

Question 14

cerebellum receives input from

Answer 14

ascending sensory pathways from the body, descending motor pathways from the cerebrum

Question 15

thalamus role

Answer 15

relay point so info can get to the relevant part of the cerebrum

Question 16

hypothalamus role

Answer 16

homeostasis, autonomic nervous system

Question 17

hypothalamus inputs

Answer 17

via the medulla

Question 18

cerebrum (cerebral cortex) mainly consist of _

Answer 18

white matter containing axons, which connect cell bodies in grey matter

Question 19

where does grey matter exist

Answer 19

only on the surface of the hemispheres

Question 20

cerebrum role

Answer 20

intelligence, personality, plan Ning, touch sensation

Question 21

sulci

Answer 21

infolding of the brain, make boundaries of different areas

Question 22

gyri

Answer 22

stick out of the sulci, areas of functional grey matter

Question 23

what separates the CNA from the rest of the body

Answer 23

meninges

Question 24

meninges layers

Answer 24

pia mater (adherant to the brain), arachnoid mater, dura mater

Question 25

where is the CSF found in the meninges

Answer 25

between Pia and arachnoid mater

Question 26

what is CSF produced by

Answer 26

specialised epithelium lining cavities within the brain (ventricles)

Question 27

how does CSF differ to plasma

Answer 27

lower in proteins, cells and most ions but a higher concentration of chloride, magnesium and sodium

Question 28

how is CSF reabsorbed into venous circulation

Answer 28

via arachnoid granulations

Question 29

spinal cord consists of

Answer 29

ascending and descending neurones

Question 30

vertebral foremen

Answer 30

vertical tunnel through the vertebra, forms vertebral canal

Question 31

vertebral arch consists of

Answer 31

pedicles, lamina, transverse processes, spinous process and articular processes

Question 32

intervertebral discs

Answer 32

fibrocartilaginous joint, allows slight movement and acts as a shock absorber

Question 33

intervertebral discs contain

Answer 33

annulus fibrosus (ring withstanding compression), nucleus pulposus (gel like centre distributing pressure), hyaline cartilage layer

Question 34

spinal cord cross section

Answer 34

dorsal column, lateral column, anterolateral fasciculus

Question 35

dorsal column (spinal cord)

Answer 35

Ascending sensory neurons carrying fine touch and proprioception information from the limbs

Question 36

lateral column (spinal cord)

Answer 36

Descending motor tracts from the cerebral cortex

Question 37

Anterolateral fasciculus

Answer 37

Ascending sensory neurones carrying pain and temperature fibres