Tendon Reflexes
Overview
A helpful rhyme for remembering these is:
- S1, S2, I tie my shoe – ankle reflex
- L3, L4, I knee the door – knee reflex
- C5, C6 – I grab some sticks – biceps reflex
- C7, C8 – I lay them straight – triceps reflex (the triceps extends the arm)
Cranial Nerve Reflexes
Corneal reflex
- Afferent: ophthalmic nerve (CN V1)
- Efferent: facial nerve (CN VII)
Pupillary reflex
- Afferent: optic nerve (CN II)
- Efferent: oculomotor nerve (CN III)
Lacrimation
- Afferent: ophthalmic nerve (CN V1)
- Efferent: facial nerve (CN VII)
Jaw jerk reflex
- Afferent: mandibular nerve (CN V3)
- Efferent: facial nerve (CN VII)
Gag reflex
- Afferent: glossopharyngeal nerve (IX)
- Efferent: vagus nerve (X)
Carotid sinus reflex
- Afferent: glossopharyngeal nerve (IX)
- Efferent: vagus nerve (X)
