Brain intro

Question 1

4 parts of CNS

Answer 1

1. cerebrum
2. brainstem (midbrain, pons, medulla)
3. cerebellum
4. spinal cord

Question 2

what is order from in to out of mater

Answer 2

meninges, arachnoid, dura

Question 3

what is space that contains CSF

Answer 3

sub-arachnoid space

Question 4

what separates frontal from parietal lobe

Answer 4

central sulcus

Question 5

what are 2 subcortical gray matter divs and what do they contain

Answer 5

1. diencephalon - thalami and hypothalmi

2. basal nuclei - caudate, putamen, globus pallidus

Question 6

what are 2 white matter tracts that connect 2 hemispheres

Answer 6

1. coups callosum

2. ant. commisure

Question 7

what are projection fibers that connect hemishpere with lower centers

Answer 7

corona radiata forms

1. internal capsule: connect out to cord
2. external capsule

Question 8

what are ventricles derived from

Answer 8

lumen of neural tube

Question 9

what connects lateral ventricles to 3rd vent

Answer 9

interventricular foramen

Question 10

what connects 3rd and 4th ventricle

Answer 10

cerbral aqueduct

Question 11

where does blocks happen

Answer 11

cerebral aqueduct

Question 12

what produces CSF

Answer 12

choroid plexus

Question 13

what and where is motor cortex

Answer 13

precentral gyrus in front of central sulcus

Question 14

what and were is sensory cortex

Answer 14

post-central gyrus - behind central sulcus

Question 15

what does size of cortial region represent

Answer 15

degree of innervation - not actual size

Question 16

what does the thalamus do

Answer 16

receives all sensory except smell

Question 17

what are 5 main parts of diencephalon from up to down

Answer 17

epithalmus, thalamus, hypothlamus, infundibulum, pit

Question 18

what are 5 thalamic nuclei and what do they relay to?

Answer 18

1. ventral anterio nucleus - motor
2. ventral lateral nucleau - motor
3. ventral posterior - somatosensory
4. lateral geniculate - visual
5. medial geniculate - auditory

Question 19

4 hypothalamus functions

Answer 19

1. neural and humoral monitor
2. autonomic and endocrine control
3. visceral components of emotional behav
4. regulate body temp, drinking, eating

Question 20

4 functions of limbic system

Answer 20

1. olfaction
2. survival
3. memory
4. behavior