(less common) plural of superior vena cava

(neuroanatomy, anatomy) A collection of brainstem nuclei involved in hearing.

(neuroanatomy) Any of the branches of the maxillary nerve or of the infraorbital nerve that supply the teeth and gums of the upper jaw.

(neuroanatomy) One of two branches of the vagus nerve that arises from the ganglion of the vagus situated below the jugular foramen in front of the transverse processes of the first two cervical vertebrae and that passes down the neck to supply the cricothyroid muscle.

plural of superior cervical ganglion

(neuroanatomy) A ganglion at the top of the sympathetic chain that lies between the internal carotid artery and the second and third cervical vertebrae and that sends postganglionic fibers to the heart, larynx, and pharynx, and to the head.

(anatomy) A long thin extraocular muscle that arises just above the margin of the optic foramen, is inserted on the upper part of the eyeball, and moves the eye downward and laterally.

(anatomy) A 4-sided muscle of the pharynx that arises from the posterior and medial parts of the pterygoid plate, from the pterygomandibular raphe, from the alveolar process above the end of the mylohyoid line, and from the side of the tongue, that inserts into the median line at the back of the pharynx, and that acts to constrict part of the pharynx in swallowing.

(anatomy) A smooth muscle helping to raise the upper eyelid.

(anatomy) An artery that arises from the basilar artery just before it divides to form the posterior cerebral arteries and supplies or gives off branches supplying the superior part of the cerebellum, midbrain, pineal gland, and choroid plexus of the third ventricle.