Quiz1

Question 1

what is the spinal cord reflex

Answer 1

information from nerves to spinal cord thorough the dorsal part,
while the info is being sent to brain for processing it also is being sent right back to nerves

Question 2

what are the four categories of spinal cord from top to bottom

Answer 2

cervical (near neck)
thoracic (middle, upper back)
lumbar (the curve, lower back)
sarcal (bottom)

the location of spinal cord damage determines the paralysis (what nerves are damaged)

Question 3

what is an epidural

Answer 3

needle in spine that blocks incoming pain and numbs every lower part of the body

the higher up the damage or epidural is the more of your body will be affected, because it affects that part downwards

Question 4

what are cranial nerves

Answer 4

• cell bodies mostly in the medulla
• these nerves are typically unaffected by spinal cord damage
  ex. olfactory: smell, optic: vision, auditory: hearing, vagus: internal organs, facial: face muscles

Question 5

explain the coronal, horizontal/axial, mid sagittal section and lateral sagittal section of the brain

Answer 5

coronal: cutting your face off
horizontal/axial: cut your scalp off / Frankenstein
mid sagittal section and lateral sagittal section: cut the brain in half splitting the nose and mouth in half

Question 6

what is the pons

Answer 6

• connection between cerebellum and brain
• some cranial nerves here
• superior olive: auditory localization

Question 7

what are the Brodmann’s Areas

Answer 7

organization of brain areas by cellular architecture; translates roughly to function

Question 8

what is an EEG

Answer 8

can evaluate electrical activity in the brain

-electrodes attached to brain

Question 9

quadriplegia v paraplegia

Answer 9

paraplegia: paralysis below waist
quadriplegia: paralysis below neck

Question 10

what is cerebrospinal fluid

Answer 10

fluid found between neurons and their bony encasements, similar composition to blood plasma

brain floats in this, ventricles contain this

Question 11

what is a cerebral hemisphere

Answer 11

one of two physically separated halves of the cortex

Question 12

grey matter v white matter in brain

Answer 12

grey: in brain, contains the cell bodies, dendrites and axon terminals of neurons, so it is where all synapses are
white: in brain and spinal cord, made of axons connecting different parts of grey matter to each other