| mediastinum inferius | The region below a plane transecing the T4/5 intervertebral disc posteriorly and the sternal angle anteriorly, demarcating the inferior limit of the superior mediastinum. It is subdivided into three regions: middle, anterior, and posterior. Synonym: mediastinum inferius. (05 Mar 2000) |
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| retinaculum musculorum extensorum inferius | A Y-shaped ligament restraining the extensor tendons of the foot distal to the ankle joint. Synonym: retinaculum musculorum extensorum inferius, cruciate ligament of leg, inferior retinaculum of extensor muscles, ligamentum cruciatum cruris. (05 Mar 2000) |
| membrum inferius | The hip, thigh, leg, ankle, and foot. Synonym: membrum inferius, inferior limb, lower extremity, pelvic limb. (05 Mar 2000) |
| segmentum anterius inferius | Anterior inferior segment of kidney. Synonym: segmentum anterius inferius. (05 Mar 2000) |
| segmentum inferius | inferior segment |
| segmentum lingulare inferius | Inferior lingular segment of superior lobe of left lung; between superior lingular segment and oblique fissure. Synonym: segmentum lingulare inferius. (05 Mar 2000) |
| tuberculum thyroideum inferius | A slight lateral projection from the lower margin of the lamina of the thyroid cartilage on either side, at the inferior end of the oblique line. Synonym: tuberculum thyroideum inferius. (05 Mar 2000) |
| labium inferius oris | The muscular fold bounding the opening of the mouth inferiorly. Synonym: labium inferius oris. (05 Mar 2000) |
| labrale inferius | <anatomy> A point where the boundary of the vermilion border of the lower lip and the skin is intersected by the median plane. (05 Mar 2000) |
| ligamentum epididymidis inferius | The lower of the folds of the tunica vaginalis between the body of the epididymis and the testis. Synonym: ligamentum epididymidis inferius. (05 Mar 2000) |
| ligamentum transversum scapulae inferius | <anatomy> An inconstant fibrous band that passes from the lateral border of the spine of the scapula to the posterior margin of the glenoid cavity. Synonym: ligamentum transversum scapulae inferius, spinoglenoid ligament. (05 Mar 2000) |
| apertura mediana ventriculi quarti | The large midline opening in the posterior inferior part of the roof of the fourth ventricle, connecting the ventricle with the cerebellomedullary cistern. Synonym: apertura mediana ventriculi quarti, arachnoid foramen, Magendie's foramen, median aperture of the fourth ventricle. (05 Mar 2000) |
| appendix ventriculi laryngis | A small diverticulum provided with mucous glands extending upward from the ventricle of the larynx between the vestibular fold and the lamina of the thyroid cartilage; it is a vestigial structure, being a much larger structure interdigitating with the neck musculature in some of the great apes where it serves as a resonating chamber. Synonym: sacculus laryngis, appendix ventriculi laryngis, Hilton's sac, laryngeal pouch. Origin: L. Sacculus (05 Mar 2000) |
| ramus choroidei ventriculi quarti | Fourth ventricle choroid branch of posterior inferior cerebellar artery. See: choroid branches. (05 Mar 2000) |
| ramus choroidei ventriculi tertii | Third ventricle choroid branch of anterior artery. See: choroid branches. (05 Mar 2000) |