| A | B |
|---|
| 5th cranial nerve | aka. trigeminal or trifacial, the largest of the cranial nerves, chief sensory nerve of the face, motor nerve of the muscles of mastication. |
| three brances of the 5th cranial nerve | ophthalmic, mandibular, maxillary |
| auriculotemporal nerve | affects the external ear and skin above the temple, up to the top of the skull. |
| infraorbital nerve | affects the skin of the lower eyelid, side of the nose, upper lip, and mouth. |
| infratrochlear nerve | affects the membrane and the skin of the nose. |
| mental nerve | affects the skin of the lower lip and chin |
| nasal nerve | affects the point and lower side of the nose. |
| supraorbital nerve | affects the skin of the forehead, scalp, eyebrow, and upper eyelid. |
| supratrochlear nerve | affects the skin between the eyes and upper side of the nose. |
| zygomatic nerve | affects the muscles of the upper part of the cheek. |
| seventh Cranial nerve | chief motor nerve of the face. Its divisions and branches supply and control muscles of facial expression. |
| trigeminal | three parts |
| infra | below, lower |
| trochlea | a loop inside the orbit of the eye |
| supra | above |
| ophthalmic | of the eyes |
