Superficial, Pathological, Visceral Reflexes, and Range of Motions Flashcards
Superficial reflexes are different from deep tendon or muscle stretch reflexes in that:
- The sensory signal has to reach the spinal cord and ascend the cord to the brain
- The motor signal has to descend in the cord from the brain to the reach the motor neurons
- Polysynaptic reflex
Superficial reflexes
- Gag
- Corneal blink
- Epigastric
- Upper/Middle/Lower abdominal
- Cremasteric
- Gluteal
- Plantar
- Anal
Segmental innervation of the gag reflex
C.N. IX, X
Segmental innervation of the corneal blink reflex
C.N. V, VII
Segmental innervation of the epigastric reflex
T5-T7
-Intercostal nerve
Segmental innervation of the upper abdominal reflex
T7-T9
-Intercostal nerve
Segmental innervation of the middle abdominal reflex
T9-T11
-Intercostal nerve
Segmental innervation of the lower abdominal reflex
T11-T12
What nerves control the lower abdominal reflex?
Intercostal, Iliohypogastric, Illioinguinal
Segmental innervation of the cremasteric reflex
L1-L2
Nerves that control the cremasteric reflex
Ilioinguinal
Genitofemoral
Segmental innervation of the gluteal reflex
L4-S2
-Inferior gluteal
Segmental innervation of the plantar reflex
L4-S2
Nerve that controls the plantar reflex
Tibial
Segmental innervation of the anal reflex
S2-S5
Normal and Abnormal Hoffman Sign
-Sharp forcible flick of thumb against patients middle finger
(N): Nothing
(A): Flexion of finger and adduction of thumb
Tromner Sign
-Tap the volmar (anterior) surface of the middle finger
(N): Nothing
(A): Flexion of the fingers and adduction of the thumb