| spina iliaca posterior inferior | Spine at the inferior end of the posterior border of the ilium between the posterior superior iliac spine and the greater sciatic notch; it forms the upper margin of the latter. Synonym: spina iliaca posterior inferior. (05 Mar 2000) |
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| spina iliaca posterior superior | The posterior extremity of the iliac crest, the uppermost point of attachment of the sacrotuberous and posterior sacroiliac ligaments; a readily apparent dimple occurs in the skin overlying the posterior superior iliac spine which is clinically useful as an indication of the level of the S-2 vertebra, the level of the inferior limit of the subarachnoid space. Synonym: spina iliaca posterior superior. (05 Mar 2000) |
| tuberositas iliaca | A rough area above the auricular surface on the medial aspect of the ala of the ilium, giving attachment to the posterior sacroiliac ligament. Synonym: tuberositas iliaca. (05 Mar 2000) |
| fascia iliaca | The fascia covering the iliacus and psoas muscles, continuous with transversalis fascia anterolaterally and with femoral sheath inferiorly. Synonym: fascia iliaca. (05 Mar 2000) |
| fossa iliaca | The smooth inner surface of the ilium above the arcuate line, giving attachment to the iliacus muscle. Synonym: fossa iliaca. (05 Mar 2000) |
| annulus tendineus communis | A fibrous ring that surrounds the optic canal and the medial part of the superior orbital fissure; it gives origin to the four rectus muscles of the eye and is partially fused with the sheath of the optic nerve. Synonym: annulus tendineus communis, Zinn's ligament, Zinn's ring, Zinn's tendon. (05 Mar 2000) |
| arteria carotis communis | <anatomy, artery> Origin, right from brachiocephalic, left from arch of aorta; runs upward in the neck and divides opposite upper border of thyroid cartilage (C-4 vertebral level) into terminal branches, external and internal carotid. Synonym: arteria carotis communis. (05 Mar 2000) |
| arteria digitalis palmaris communis | <anatomy, artery> One of three arteries arising from the superficial palmar arch and running to the interdigital clefts where each divides into two proper palmar digital arteries. Synonym: arteria digitalis palmaris communis. (05 Mar 2000) |
| arteria digitalis plantaris communis | <anatomy, artery> One of four arteries arising from a superficial plantar arch, when present as a variation. They unite with the plantar metatarsal arteries. Synonym: arteria digitalis plantaris communis. (05 Mar 2000) |
| arteria hepatica communis | <anatomy, artery> Origin, coeliac; branches, right gastric, gastroduodenal, and proper hepatic. Synonym: arteria hepatica communis. (05 Mar 2000) |
| arteria interossea communis | <anatomy, artery> Origin, ulnar; branches, anterior and posterior interosseous. Synonym: arteria interossea communis. (05 Mar 2000) |
| vagina communis musculorum flexorum | The synovial sheath that surrounds the eight tendons of the superficial and deep flexors of the digits of the hand as they pass through the carpal canal; it is commonly continuous with the digital sheath of the little finger. Synonym: vagina communis musculorum flexorum, ulnar bursa. (05 Mar 2000) |
| vagina tendinum musculorum fibularium communis | An alternate term for common peroneal tendon sheath. (05 Mar 2000) |
| vagina tendinum musculorum peroneorum communis | The sheath that surrounds the tendons of the peroneus longus and brevis muscles in their passage across the ankle. Synonym: vagina tendinum musculorum peroneorum communis, vagina tendinum musculorum fibularium communis. (05 Mar 2000) |
| macula communis | The thickened area in the medial wall of the auditory vesicle that later subdivides to form the maculae of the sacculus and utriculus as well as the cristae of the ampullae of the saemicircular ducts. (05 Mar 2000) |