physical exam -Newborn Normal: Cranial Nerves

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Cranial Nerves
Examination of the babys cranial nerve function is often accomplished by observing spontaneous activity. During crying, facial movement (Cranial Nerve 7) is observed for fullness or asymmetry. The quality and strength of the cry is a way of looking at Cranial Nerves 9 and 10 function. Sucking and swallowing assesses Cranial Nerves 5, 7, 9, 10, and 12 because all of these cranial nerves are involved in this complex act. Eye movements (Cranial Nerves 3, 4 and 6) can be assessed by using the vestibulo-ocular reflex (dolls eyes maneuver). When the head is turned, there is conjugate eye movement in the opposite direction. Testing a babys behavior response to light (Cranial Nerve 2) and sound (Cranial Nerve 8) also adds to the cranial nerve exam. Pupillary light reflex, corneal reflex, gag reflex and funduscopic exam are done in the same manner as the adult exam.

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