Brainstem Nuclei & Reflexes Flashcards
Ptosis, Anhidrosis, Miosis, associted with lesion of spinal cord above T1 or late stage syringomyelia
Horner Syndrome
Posterior half of a skull cap dermatome
C2
High turtle neck dermatome
C3
Low-collar shirt dermatome
C4
Nipple Dermatome
T4
Xiphoid Process Dermatome
T7
Umbilicus Dermatome, early appendicitis referral pain
T10
Inguinal Ligament Dermatome
L1
Kneecap Dermatome
L4
Erection and sensation of penile and anal zones
S2, 3, 4
Referred pain to right shoulder via phrenic nerve
Diaphragm and GB pain (C3, 4, 5)
Biceps reflex
C5 nerve root
Triceps reflex
C7 nerve root
Patellar Reflex
L4 nerve root
Achilles reflex
S1 nerve root
Cremaster Reflex
L1, L2
Anal Wink Reflex
S3, 4
“Hang on for life” reflex - abduct/extend limbs when startled and then draw together
Moro reflex
Movement of head toward one side if cheek or mouth is stroked
Rooting reflex
Sucking response when roof of mouth is touched
Sucking reflex
Curling of finger if palm is stroked
Palmar reflex
Dorsiflexion of large toe and fanning of other toes with plantar stimulation
Babinski reflex
Stroking along one side of the spine while newborn is face down causing lateral flexion of lower body toward stimulated side
Galant Reflex
Cranial Nerves the lie medially at brain stem
III, IV, XII
CN that arises dorsally and immediately decussates
CN IV
melatonin secretion, circadian rhythms
Pineal Gland
Conjugate vertical gaze center
Superior Colliculi
Auditory brainstem
Inferior Colliculi