nervous system + brain

Question 1

what are the 4 parts of a neuron

Answer 1

dendrite, body, axon, axon terminal

Question 2

what are the 4 anatomical types of neurons

Answer 2

anaxonic, bipolar, pseudounipolar, multipolar

Question 3

what are the neuroglia of the CNS

Answer 3

astrocytes, oligodendrocytes, microglia ependymal cells

Question 4

what are the neuroglia of the PNS

Answer 4

satellite and schwann

Question 5

what are the enlargements of the spinal cord

Answer 5

for plexus. 2. cervical and lumbar

Question 6

what is conus medullaris

Answer 6

end of spinal cord

Question 7

where does the spinal cord start and end

Answer 7

foramen magnum, L1

Question 8

what are the 3 layers of meninges

Answer 8

PAD. pia mater. arachnoid mater, dura mater

Question 9

what is contained in the subarachnoid space

Answer 9

CSF

Question 10

how is a spinal nerve divided

Answer 10

peripheral nerve, fascicle, axon

Question 11

what connective tissue covers the peripheral nerves

Answer 11

epineurium

Question 12

what connective tissue covers the nerve fasicles

Answer 12

perineurium

Question 13

what connective tissue covers the axon

Answer 13

endoneurium

Question 14

what is the diencephalon

Answer 14

thalamus and hypothalamus

Question 15

what structures connect the hemispheres of the cerebrum

Answer 15

corpus callosum and anterior commissure

Question 16

what is the mesencephalon and what does it do

Answer 16

corpora quadrigemina
-visual and auditory reflexes

red nucleus
-motor coordination and maintaining posture

Question 17

what does the falx cerebri do

Answer 17

it is a part of the dura mater that separates the hemispheres of the cerebrum

Question 18

what does the tentorium cerebelli do

Answer 18

dura mater that seperates cerebellum and cerebrum

Question 19

what does the diaphragma sellae do>

Answer 19

duramater that surrounds pituitary gland

Question 20

what does the falx cerebelli do

Answer 20

dura mater that separates hemispheres of the cerebellum

Question 21

what are the 5 functions of the CSF

Answer 21

protect, suspend, nutrient exchange, waste removal, gas exchange

Question 22

how does a drop of blood get from the L ventricle to the R. veterbral artery

Answer 22

aorta -> r. brachiocephalic -> r. subclavian -> R. vertebral

Question 23

how does a drop of blood get from superior saggital sinus to the r. atrium of the heart

Answer 23

superior saggiato sinus -> traverse sinus -> sigmoidal sinus -> internal jugular -> subclavian vein -> brachiocephalic -> superior vena cava -> right atrium

Question 24

how does a drop of blood get from the occipital sinus to the superior vena cava

Answer 24

occipital sinus -> vertebral vein -> subclavian vein -> brachiocephalic-> superior vena cava

Question 25

how does blood get from the eternal jugular to the superior vena cava

Answer 25

external jugular vein -> subclavian -> brachiocephalic -> superior vena cava