Nervous system anatomy

Question 1

Which glia functions in the CNS

Answer 1

microglia, astrocytes and oligodendrocytes, ependymal cells and polydendrocytes

Question 2

which glia functions in the PNS

Answer 2

schwann cells

Question 3

Which glia has immune function

Answer 3

microglia

Question 4

which glia is a stem cell

Answer 4

polydendrocytes

Question 5

function of ependymal cells

Answer 5

protect brain from infection and block drugs getting into brain

Question 6

how many pairs of cranial nerves

Answer 6

12

Question 7

how many pairs of spinal nerves and what are they

Answer 7

31, 8 cervical, 12 thoracic, 5 lumbar, 5 sacral and 1 coccygeal

Question 8

what are neural fibres organised in

Answer 8

fascicles

Question 9

dorsal root and ventral root join to form what

Answer 9

intervertebral foramen and branch into dorsal ramus and ventral ramus

Question 10

what is plexuses

Answer 10

networks of intersecting spinal nerves

Question 11

damage to sensory inputs leads to

Answer 11

paraesthesias - abnormal sensation (numbness, sensation)

Question 12

damage to motor output leads to

Answer 12

paralysis - loss of muscle contraction

Question 13

what does grey matter consists of

Answer 13

neuronal cell bodies, dendrites, unmyelinated axons and glial cells

Question 14

what does white matter consists of

Answer 14

myelinated axons organised in columns - funiculi, posterior, lateral and anterior

Question 15

what do thalamus and hypothalamus make up

Answer 15

diecenphalon

Question 16

what do brain stem consists of

Answer 16

midbrain, pons and medulla oblongata

Question 17

what is corpus striatum made up

Answer 17

caudate nucleus and putamen

Question 18

what forms lentiform nucleus

Answer 18

putamen and globus pallidus

Question 19

function of basal ganglia

Answer 19

motor control, inhibiting unwanted movement

Question 20

what does the limbic consists of

Answer 20

cingulate gyrus, hippocampus, parahippocampal gryus and amygdala

Question 21

what does cerebellar cortex consists of

Answer 21

granule cells and punkinje cells

Question 22

function of cerebellum

Answer 22

coordination of movements, control of posture, allow movements to be smooth

Question 23

what are the cerebral white matter classified as

Answer 23

commissural fibres, association fibres, projection fibres

Question 24

function of cerebrospinal fluid

Answer 24

provides extra protection for brain, help maintains homeostasis, transport substances

Question 25

function of lateral ventricles

Answer 25

filled with cerebrospinal fluid

Question 26

three connective layer of meninges

Answer 26

dura mater, arachnoid mater, pia mater