| corpus quadrigeminum anterius | The paired, larger, rounded anterior eminence of the laminae of mesencephalic tectum; major afferent connections of the superficial layers are the retina and striate cortex; input to deep layers of the colliculus are polymodal. Its efferent connections are with the lower brainstem and spinal cord (tectobulbar tract and tectospinal tract) and with the pulvinar and other cell groups in the caudal part of the thalamus; participates in extrageniculate visual pathway. Synonym: colliculus superior, anterior quadrigeminal body, corpus quadrigeminum anterius. (05 Mar 2000) |
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| corpus quadrigeminum posterius | The ovoid, paired, inferior eminence of the laminae of mesencephalic tectum; it receives the lateral lemniscus and projects by way of the brachium of inferior colliculus to the medial geniculate body of the thalamus, and is thus an essential way-station in the central auditory pathway. Synonym: colliculus inferior, corpus quadrigeminum posterius, inferior nasal colliculus, posterior quadrigeminal body. (05 Mar 2000) |
| corpus radii | The triangular body of the radius located between the expanded proximal and distal extremities of the bone. Synonym: corpus radii. (05 Mar 2000) |
| corpus restiforme | A lateral (larger) subdivision of the inferior cerebellar peduncle composed of a variety of fibres including, but not limited to, olivo-, reticulo-, cuneo-, trigemino-, and dorsal spinocerebellar. See: inferior cerebellar peduncle. Synonym: corpus restiforme. (05 Mar 2000) |
| corpus spongiosum penis | The median column of erectile tissue located between and ventral to the two corpora cavernosa penis; posteriorly it expands into the bulbus penis and anteriorly it terminates as the enlarged glans penis; it is traversed by the urethra. Synonym: corpus cavernosum urethrae, spongy body of penis. Corpus spongiosum urethrae muliebris, the submucous coat of the female urethra, containing a venous network that insinuates itself between the muscular layers, giving to them an erectile nature. (05 Mar 2000) |
| corpus sterni | The middle and largest portion of the sternum, lying between the manubrium superiorly and the xiphoid process inferiorly. Synonym: corpus sterni, gladiolus, mesosternum, midsternum. (05 Mar 2000) |
| corpus striatum | Striped gray and white matter consisting of the neostriatum and paleostriatum (globus pallidus). It is located in front of and lateral to the thalamus in each cerebral hemisphere. The gray substance is made up of the caudate nucleus and the lentiform nucleus (the latter consisting of the globus pallidus and putamen). The white matter is the internal capsule. (12 Dec 1998) |
| corpus tali | The large posterior part of the talus forming the trochlea above for articulation with the tibia and fibula and articulating below with the calcaneus. Synonym: corpus tali. (05 Mar 2000) |
| corpus tibiae | The triangular body of tibia between its expanded proximal and distal ends. Synonym: corpus tibiae, body of tibia. (05 Mar 2000) |
| corpus trapezoideum | A plate of transverse fibres running over the dorsal (deep) border of the pontine nuclei; it is formed by ascending auditory fibres that cross to the opposite side of the brainstem. Synonym: corpus trapezoideum, trapezoid. (05 Mar 2000) |
| corpus triticeum | A rounded nodule of cartilage, the size of a grain of wheat, occasionally present in the posterior margin of the lateral thyrohyroid ligament. Synonym: cartilago triticea, corpus triticeum, triticeum. (05 Mar 2000) |
| corpus ulnae | shaft of ulna |
| corpus unguis | The exposed portion of the nail distal to its root. Synonym: corpus unguis. (05 Mar 2000) |
| corpus vertebrae | The main portion of a vertebra anterior to the vertebral canal, as distinct from the arches. Synonym: corpus vertebrae. (05 Mar 2000) |
| corpus vesicae biliaris | The main part of the gallbladder terminating in the rounded fundus below and continuing into the neck of the gallbladder above. Synonym: corpus vesicae biliaris, corpus vesicae felleae. (05 Mar 2000) |