LAb 4 Human Reflexes

Question 1

Transmits the afferent impulse to cns

Answer 1

Sensory neuron

Question 2

Either monosynaptic or polysnaptic region within cns

Answer 2

Integration center

Question 3

Conducts efferent impulses from the integration center to an effector

Answer 3

Motor neuron

Question 4

Muscle fiber or gland that responds to the efferent impulse

Answer 4

Effector

Question 5

Synapses directly to motor neuron

Answer 5

Monosynaptic

Question 6

Involve at least one interneuron in between sensory and motor neuron

Answer 6

Polysynaptic reflexes

Question 7

Difference

Answer 7

Conduction time

Question 8

Time consumed in peripheral nerve

Answer 8

Latent period

Question 9

Portion of latency consumed in the cord

Answer 9

Nuclear delay

Question 10

Reflex same side of body

Answer 10

Ipsilateral response

Question 11

Other side of body response while the other is the stimuli

Answer 11

Contra lateral response

Question 12

Subject sit on edge of desk with both feet off the floor. Using a hammer

Answer 12

Patellar reflex

Question 13

Patella stretches what tendon

Answer 13

Quadriceps

Question 14

Patellar reflex stimulates

Answer 14

Stretch receptors

Question 15

Afferent impulse in sensory fiber of the femoral nerve leading to the

Answer 15

Lumbar and spinal cord

Question 16

Patellar reflex is

Answer 16

Monosynaptic

Question 17

Interneuron to relax antagonistic hamstring muscle

Answer 17

Inhibitory interneuron

Question 18

What does patellar tendon tests

Answer 18

Function of femoral nerve and spinal cord segments L2-L4

Question 19

Absence or decrease of reflex in patellar is called

Answer 19

Westphal’s sign

Question 20

Set of fingers interlock into hook like form and out infront of Chest, pulling to opposite side

Answer 20

Jendrassik maneuver

Question 21

Elicits a larger reflex

Answer 21

Jendrassik maneuver

Question 22

Opposite of starch reflex

Contracts and activates Golgi tendon (proprioreceptor)

Answer 22

Golgi reflex

Question 23

The activation of one muscle eight he simultaneous inhibition of firs antagonistic muscle

Answer 23

Reciprocal inhibition

Question 24

Composed of 3-10 intrafusal muscle that lack myofilaments in central region and are non contractile

Answer 24

Muscle spindle

Question 25

Type 1a fibers primary sensory. Type 2 fibers secondary sensory interested by

Answer 25

Gamma efferent fibers

Question 26

Contractile Muscle fibers are innervated by

Answer 26

Alpha efferent fibers

Question 27

Activating the motor neuron gives the muscle spindle the function to protect the skeletal muscles from over extending

Answer 27

Alpha efferent motor neuron

Question 28

A contracted muscle may stay contracted because of

Answer 28

Alpha gamma interaction

Question 29

Causes intrafusal fibers to contact

Answer 29

Alphas for neurons

Question 30

Cause muscle spindle to contrac this relieving slack that the music espindle develops when the muscle is on contacting state

Answer 30

Gamma motor neurons

Question 31

Also known as ankle jerk reflex

Answer 31

Achilles reflex

Question 32

Occurs when Achilles' tendon is tapped while the foot is Dorsi-reflex

Answer 32

Achilles reflex

Question 33

What nerve root does Achilles check

Answer 33

S1-s2

Question 34

Site of stimulation

Answer 34

Receptor

Question 35

Jerking of the forearm occurs, tricep tendons hit with hammer.

Answer 35

Triceps Reflex

Question 36

tricep reflex stimulates

Answer 36

C6-C7 reflex arcs

Question 37

bicep brachii, jerking of the forearm

Answer 37

Biceps Reflex

Question 38

bicep reflex stimulates

Answer 38

C5-C6

Question 39

the arm is resting, jerking of forearm when the brachioradialis tendon is hit with hammer

Answer 39

brachioradialis reflex

Question 40

brachioradialis reflex stimulates

Answer 40

C5-C6

Question 41

Tapping on the forehead, primitive reflex

Answer 41

Glabellar Reflex

Question 42

if blinking occurs persistently during glabellar reflex this condition is called (abnormality)

Answer 42

Myerson's sign

Question 43

afferent reflex is transmitted by the ---- and efferent signals come back to oricularis oculi muscle via.. that causes blinking

Answer 43

trigeminal nerve--- facial nerve

Question 44

Glabellar reflex is often seen

Answer 44

Parkinson's Disease

Question 45

a finding elicited by a reflex test that verifies the presence and absence of prob in corticospinal tract also known as finger flexor reflex

Answer 45

hoffman reflex

Question 46

upper limb equivalent of babinski's sign

Answer 46

hoffman reflex

Question 47

Babinski sign indicates a dysfunction at

Answer 47

upper motor neuron

Question 48

hoffman is analogous to

Answer 48

spinal stretch reflex

Question 49

test involves tapping the nail or flicking the terminal phalanx of the 3rd and 4th finger, positive sign with flexion of the phalanx

Answer 49

hoffman's reflex

Question 50

2 important neurological test

Answer 50

plantar and babinksi

Question 51

stimulates which receptor

Answer 51

cutaneous receptors in the lateral aspect of the sole of the foot

Question 52

normal sign.. causes the toes to flex and move closer together

Answer 52

plantar reflex

Question 53

abnormal response, toes flare out and indicates damage to | pyramidal tract

Answer 53

babinksi sign

Question 54

in bright light the circular muscles of the iris contract and the pupil constricts, controlled by parasympathetic

Answer 54

pupillary reflex

Question 55

whether each pupil constricts when lighted up

Answer 55

direct pupillary reflex

Question 56

whether each pupil constricts with light shone into the other eye

Answer 56

consensual pupillary reflex

Question 57

convey information from the photoreceptors to the optic nerve which connects to the pretectal nucleus of the high midbrain

Answer 57

retinal ganglion

Question 58

why assessing tests in both eyes important

Answer 58

test to check on brain stem function damage

Question 59

lack of pupillary reflex can be caused by

Answer 59

optic nerve damage, oculomotor, brain death, depressant drugs, (barbituates)

Question 60

test when eyelashes are touched

Answer 60

palpebral reflex