Motor control 1

Question 1

what type of fibers convey vountary motor contorl

Answer 1

a motorneurons

Question 2

what type of nucli contorl spinal reflexes

Answer 2

brain stem nuclie

Question 3

what is the somatoptic map of the spinal cord

Answer 3

dicates that the cenrtl part of th grey mater does central psotuarl muscles such as those of trunk, and lateral part has more to do with a arms

Question 4

in which side of the spianl cord is the motor neurons cell bodies higher

Answer 4

the right sidde

Question 5

wher does the spinal cord get its information from

Answer 5

brain stem and cortial and corticospinal pyrmidal tract

Question 6

function of spinal cord

Answer 6

proprioceptions, touch, pain

Question 7

functions brainstem

Answer 7

vestibualr systems about balance

Question 8

cortex

Answer 8

in response to viusla opathalcor , emion and intellect

Question 9

what is the strech reflex

Answer 9

when the tneond stenes it cuase a reflex of extension

Question 10

what happens in the strech reflex

Answer 10

caues contraciotn of agonist muscle
antagonist mucle relaxes
a signsla is senses to thalamus and somatosensory cortex

Question 11

what is reciprolca inhitborion

Answer 11

a alpha motor nutaorn blockes the antagonsi musles making it relgax

Question 12

does the strech recept go rhough greay or white mater

Answer 12

grey mater

Question 13

does the strech synpaes and hwer

Answer 13

in dorsal route ganglion and greya mater where after spiting it synapes for anatagos and agiaon for agonist

Question 14

how does the strech replex fefect aciton poteosn

Answer 14

increase action poteinl of 1a

Question 15

why is it called a monosymphaic reflex fo the stretch frelex

Answer 15

as it only has one true synapase

Question 16

what is the fucniton of the golgi tendon rogans

Answer 16

when the nerve ending are commpresed it cause 1b fibers to increase citon potenila dn cause sinverse stretch reflex

Question 17

what happesn in inverse strech relex

Answer 17

inhibtors agonist musles
exites antagmoism mules
spinal doresla columbs is used to pass information to somatosensory corte

Question 18

what is the clasp knife relex

Answer 18

where the inverse strech relex cuase the joint to become fully extended

Question 19

how many synapes are there in the golig tenon organ

Answer 19

2 - both insdie the grey mater of the spianl cord

Question 20

what cuaes hte flexor/ withdral relex

Answer 20

pain in the skin

Question 21

how doe sht eflexor reflex work

Answer 21

increased activy of the fleozr musles
antagonistic extenosr are inhibited
also exitiery interos cross he spinal cord to excite cotnralator extenosr
spinal nruons corss spianl cord to inhibri contorlator fleuxs to help balance
sensory inomarl go up to the brain via the cotraltalr spinoplaic tract

Question 22

what tract is seud for flexor and withdrawal relex

Answer 22

controlatalr spinal tract

Question 23

what type of neruon is in the flexor / withdral relex

Answer 23

a delta

Question 24

why are nocieptise fibers slower than musles sinlde fibers

Answer 24

as theey are smaller

Question 25

how to overrised inverse strech flrex

Answer 25

using cns, aplpha mototr nutos over ride ibibtion from gts to ain’t musles contraction, this is done by them blocking the axon due to the hyperolisaiton of a motonurions

Question 26

how to stop the strech relex being overwriddedn

Answer 26

jendrassick maover - whre ouo cross arms, and interlock fingers and pull hard, while clenching teeth

Question 27

what do you have to do to overcome relex

Answer 27

anticipate it