Spinal Cord

Question 1

what are ascending tracts

Answer 1

deliver sensory information to the brain

Question 2

what is a descending tract

Answer 2

delivers motor information to the muscles from the brain

Question 3

what are the three major sensory tracts

Answer 3

posterior column tract (dorsal column), spinothalamic tract, spinocerebellar tract

Question 4

what is a first order neuron

Answer 4

the cell body is in the dorsal or cranial root ganglion

delivers sensations to CNS

Question 5

what is a second order neuron

Answer 5

an interneuron within the cell body in the spinal cord or brain

Question 6

what is a third order neuron

Answer 6

transmits info from the thalamus to the cerebral cortex

Question 7

what does the dorsal column consist of

Answer 7

fasciculus gracilis ad fasciculus cuneatus

Question 8

what does the spinothalamic tract transmit

Answer 8

pain temp

Question 9

what does the spinocerebellar tract transmit

Answer 9

proprioception

Question 10

what are the two major motor tracts

Answer 10

corticospinal tract and subconcious tract

Question 11

what motor information does the corticospinal tract transmit

Answer 11

conscious control of skeletal muscles

Question 12

what motor information does the subconcious tract transmit

Answer 12

regulation of balance, muscle tone, eyes, hand, upperlimb position

Question 13

what tracts are part of the subconcious motor tracts

Answer 13

vestibulospinal tract
tectospinal tract
reticulospinal tracts
rubrospinal tracts

Question 14

what does the vestibulospinal tract do

Answer 14

info from the inner ear to monitor position of the head. responds by altering muscle tone, neck muscle contraction and limbs for posture and balance

Question 15

what tracts are part of the corticospinal tracts

Answer 15

corticobulbar tracts
lateral and anterior corticospinal tracts

Question 16

what does the lateral and anterior corticospinal tracts

Answer 16

concious control of skeletal muscle

Question 17

what does the corticobulbar tract do

Answer 17

concious control over eye jaw and face muscles

Question 18

what does the tectospinal tract do

Answer 18

info to the head and neck and upper limbs responding to bright and sudden movements and loud noises

Question 19

what does the tectum area consist of

Answer 19

superior and inferior colliculi

Question 20

what does the superior colloculi receive

Answer 20

visual information

Question 21

what does the inferior colliculi receive

Answer 21

auditory information

Question 22

what does the reticulospinal tract do

Answer 22

send info to cause eye movements and activate respiratory muscles

Question 23

what does the rubrospinal tract do

Answer 23

send information to the flexor and extensor muscles

Question 24

what does the thalamus do in relation to motor control

Answer 24

controls reflexes with visual and auditory stimuli

Question 25

what does the hypothalamus do in relation to motor control

Answer 25

regulates hunger thirst and sexual activity

Question 26

what does the pons do in relation to motor control

Answer 26

regulates the rhythmic beating patterns

Question 27

what does the medulla oblongata do in relation to motor control

Answer 27

alters breathing patterbs

Question 28

what does the brain stem do in relation to motor control

Answer 28

control simple reflexes

Question 29

what does the spinal cord do in relation to motor control

Answer 29

control simple reflexes