Clinical, CN, and primitive reflexes

Question 1

Biceps reflex: nerve root?

Answer 1

C5

Question 2

Triceps reflex: nerve root?

Answer 2

C7

Question 3

Patellar reflex: nerve root?

Answer 3

L4

Question 4

Achilles reflex: nerve root?

Answer 4

S1

Question 5

Cremaster reflex: nerve roots?

Answer 5

L1, L2

Question 6

Anal wink: nerve roots?

Answer 6

S3, S4

Question 7

Name that primitive reflex: Infant aBducts/extends limbs when startled, and then draws them together.

Answer 7

Moro reflex

Question 8

Name that primitive reflex: stroke cheek or mouth–> baby moves head toward that side.

Answer 8

Rooting reflex

Question 9

Name that primitive reflex: touch roof of baby’s mouth–> sucking response.

Answer 9

Sucking reflex

Question 10

Name that primitive reflex: stroke palm–> fingers curl

Answer 10

Palmar reflex

Question 11

Name that primitive reflex: stroke plantar foot–> dorsiflexion of big toe + fanning of other toes.

Answer 11

Plantar reflex (aka Babinski sign)

Question 12

Name that primitive reflex: Hold baby in ventral suspension and stroke along one side of the spine–> lateral flexion of the lower body toward the stimulated side

Answer 12

Galant reflex

Question 13

Corneal reflex: afferent and efferent

Answer 13

Aff: V1 (nasociliary branch)
Eff: VII (temporal branch: orbicularis oculi)

Question 14

Lacrimation reflex:afferent and efferent

Answer 14

Aff: V1
Eff: VII

Question 15

Jaw jerk reflex: afferent and efferent

Answer 15

Aff: V3 (muscle spindle from masseter)
Eff: V3

Question 16

Pupillary light reflex: afferent and efferent

Answer 16

Aff: II
Eff: III

Question 17

Gag reflex: afferent and efferent

Answer 17

Aff: IX
Eff: X
Katie: none (slut)