Lab Quiz #8 reflexes and questions Flashcards
what type of reflex is the achilles’ reflex?
somatic
what is the normal response for the ciliospinal reflex?
dilation of pupils
which cranial nerve contains the motor fibers for the puillary light reflex arc?
cranial nerve III (oculomotor nerve)
which cranial nerve contains the sensory fibers for the pupillary light reflex arc?
cranial nerve II (optic)
how is the ciliospinal reflex performed?
watch the pupils of another person as you pinch his/her neck firmly enough to cause pain
what type of reflex is the patellar reflex?
somatic
what else does autonomic reflexes involve?
2 motor neurons between the central nervous system and the effector
what is the normal response of the patellar reflex?
leg extension at knee
what does a negative extension involve with the babinski reflex?
plantar flexion at toes or nothing
how is the pupillary reflex performed?
have a person sit with his/her eyes closed for one minute. as they open eyes, flash bright light into them and note the change in size of pupils.
which reflex would you:
1) count your partner’s pulse when he/she is sitting down and record results
2) while continuing to hold partner’s wrist to feel pulse have them exert firm pressure on their eyeballs and immediately count their pulse and record rate.
oculocardiac reflex
what is the procedure of the patellar refle knex?
have a student sit in chair and cross legs, relax and close their eyes. tap skin over the patellar tendon with a rubber hammer.
what is the procedure of the oculocardiac reflex?
1) count your partner’s pulse when he/she is sitting down and record results
2) while continuing to hold partner’s wrist to feel pulse have them exert firm pressure on their eyeballs and immediately count their pulse and record rate.
who should demonstrate a positive babinski reflex/
children under 1.5
what is the normal response for the pupillary light reflex/
pupils restrict
which reflex would the student removes shoe and sock from right foot. other person takes tip of rubber mallet and runs it on sole of foot firmly in upward movement from the heel to the arch?
babinski reflex
what else does somatic reflexes involve?
a single motor neuron from the central nervous system to the effector.
what is the normal response of the achilles’ reflex?
plantar flexon at ankle/foot
which cranial nerve contains the motor fibers for oculocardiac reflex arc?
cranial nerve X (vagus)
what are the two motor neurons that autonomic reflexes involve?
one preganglionic neuron and one postgangliotic neuron
what are the methods that are used to test the functions of the cerebellar? (5) (STCCS)
1) stretch both arm to the side and snap fingers of both hands
2) turn to side and looking straight ahead, walk a straight line placing one foot directly in front of the other foot.
3) close your eyes and touch your nose with your index finger of your left hand
4) close your eyes and touch your nose with the index finger of your right hand
5) stand erect and move the heel of your right foot first up and then down the shin of your left leg
what type of reflex is the pupillary light reflex?
autonomic
which reflex do you have a person sit with his/her eyes closed for one minute. as they open eyes, flash bright light into them and note the change in size of pupils?
the pupillary light reflex
what does somatic reflexes involve the activation of?
skeletal muscle as the effector
what type of reflex is the ciliospinal reflex?
autonomic
what is the normal response for the oculocardiac reflex?
an slowing pulse with pressure
which reflex would you have a standing subject rest one knee on chair and relax their leg muscles. while lab partner bends (dorsiflexes) the foot to stretch the gastrocnemius muscle, tap the skin over achilles’ tendon with a rubber hammer?
achilles reflex
which reflex do you have a student sit in chair and cross legs, relax and close their eyes. tap skin over the patellar tendon with a rubber hammer?
patellar reflex
how is the babinski reflex performed?
student removes shoe and sock from right foot. other person takes tip of rubber mallet and runs it on sole of foot firmly in upward movement from the heel to the arch.
what does a positive extension involve with the babinski reflex?
extension of big toe (possible fanning of toes)
what is the procedure for the achilles’ reflex?
have a standing subject rest one knee on chair and relax their leg muscles. while lab partner bends (dorsiflexes) the foot to stretch the gastrocnemius muscle, tap the skin over achilles’ tendon with a rubber hammer.
what type of reflex is the oculocardiac reflex?
autonomic
which cranial nerve contains the sensory fibers for the oculocardiac reflex?
cranial nerve V (trigeminal)
what does an autonomic reflex involve the activation of?
a visceral effector such as a gland, smooth muscle or cardiac muscle
what does the activation of skeletal muscle in somatic reflexes result in?
movement of a body part
what reflex do you watch the pupils of another person as you pinch his/her neck firmly enough to cause pain?
ciliospinal reflex
is it normal for an adult to be positive or negative for the babinski reflex?
negative
