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121extrapyramidal system — Anat. the part of the central nervous system, including the descending motor fibers other than those of the pyramidal tract, that regulates muscle tone, posture, and other aspects of body movement. [1960 65] * * * …
122extrinsic eye muscle — Anat. any of six small muscles that control the horizontal, vertical, and rotating movements of the eyeball. Also called extraocular muscle. * * * …
123facet joint — Anat. any of the four projections that link one vertebra of the spine to an adjacent vertebra. * * * …
124facial nerve — Anat. either one of the seventh pair of cranial nerves composed of motor fibers that control muscles of the face except those used in chewing. [1810 20] * * * ▪ anatomy nerve that originates in the area of the brain called the pons and that …
125false rib — Anat. any of the lower five ribs on either side of the body, which are not directly attached to the sternum. [1490 1500] * * * …
126false vocal cords — Anat. the upper pair of vocal cords, not concerned with vocal production. Cf. true vocal cords, vocal cords. * * * …
127femoral artery — Anat. the main artery of the thigh, supplying blood to the leg. [1775 85] * * * …
128floating rib — Anat. one member of the two lowest pairs of ribs, which are attached neither to the sternum nor to the cartilages of other ribs. [1825 35] * * * …
