external nasal vein n.
Any of several vessels that drain the external nose and empty into the angular vein or the facial vein.
- External obturator muscle
external obturator muscle n. A muscle with origin from the margin of the obturator foramen and the adjacent surface of the obturator membrane, with insertion into fossa of the greater trochanter, with nerve supply from the obturator nerve, and whose action rotates the thigh laterally.
- External occipital crest
external occipital crest n. A ridge extending from the external occipital protuberance to the border of the great foramen.
- External ophthalmopathy
external ophthalmopathy n. A disease of the conjunctiva, cornea, or adnexa of the eye.
- External ophthalmoplegia
external ophthalmoplegia n. Paralysis affecting one or more of the extrinsic eye muscles.