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