| iliopectineal ligament | A thickened band of fused iliac and psoas fascia passing from the posterior aspect of the inguinal ligament anteriorly across the front of the femoral nerve to attach to the iliopectineal eminence of the hip bone posteriorly. The iliopectinal arch thus forms a septum which subdivides the space deep to the inguinal ligament into a lateral muscular lacunae and a medial vascular lacunae. When a psoas minor muscle is present, its tendon of insertion blends with the iliopectineal arch. Synonym: arcus iliopectineus, iliopectineal ligament, ligamentum iliopectineale. (05 Mar 2000) |
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| iliotrochanteric ligament | <anatomy> The lateral strong band of the Y-shaped iliofemoral ligament; it is attached below to the tubercle at the upper part of the intertrochanteric line. (05 Mar 2000) |
| impression for costoclavicular ligament | <anatomy> An irregular pitted area on the inferior surface of the clavicle at its sternal end, giving attachment to the costoclavicular ligament. Synonym: impressio ligamenti costoclavicularis, costal tuberosity, rhomboid impression, tuberositas costalis. (05 Mar 2000) |
| quadrate ligament | <anatomy> Fibres that pass from the distal margin of the radial notch of the ulna to the neck of the radius. Synonym: ligamentum quadratum, Denuce's ligament. (05 Mar 2000) |
| inferior calcaneonavicular ligament | <anatomy> A dense fibroelastic ligament that extends from the sustentaculum tali to the plantar surface of the navicular bone; it supports the head of the talus. Synonym: ligamentum calcaneonaviculare plantare, inferior calcaneonavicular ligament, spring ligament. (05 Mar 2000) |
| inferior ligament of epididymis | 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) |
| inferior pubic ligament | <anatomy> The ligament that arches across the inferior aspect of the pubic symphysis. Synonym: ligamentum arcuatum pubis, inferior pubic ligament. (05 Mar 2000) |
| inferior transverse scapular ligament | <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) |
| infundibulo-ovarian ligament | The longest of the fimbriae of the uterine tube; it extends from the infundibulum to the ovary. Synonym: fimbria ovarica, infundibulo-ovarian ligament. (05 Mar 2000) |
| infundibulopelvic ligament | A band of peritoneum that extends upward from the upper pole of the ovary; it contains the ovarian vessels and ovarian plexus of nerves. Synonym: ligamentum suspensorium ovarii, infundibulopelvic ligament. (05 Mar 2000) |
| inguinal ligament | <anatomy> A fibrous band formed by the thickened inferior border of the aponeurosis of the external oblique that extends from the anterior superior spine of the ilium to the pubic tubercle bridging, muscular and vascular lacunae;forms the floor of the inguinal canal; gives origin to the lowermost fibres of internal oblique and transversus abdominis muscles. See: aponeurosis of external abdominal oblique muscle. Synonym: ligamentum inguinale, arcus inguinalis, crural arch, fallopian arch, fallopian ligament, femoral arch, Poupart's ligament. (05 Mar 2000) |
| inguinal ligament of the kidney | The segment of the mesonephros extending to the inguinal region. (05 Mar 2000) |
| intercapital ligament | A part of the ligamentum capitis costae intra-articulare; which connects the heads of opposite ribs by passing over the intervertebral fibrocartilage, and thus holds the ribs in their articular sockets; not present in man but well developed in the dog and cat. Synonym: intercapital ligament. (05 Mar 2000) |
| interclavicular ligament | <anatomy> A strong ligament that connects the two sternoclavicular joints across the upper border of the manubrium. Synonym: ligamentum interclaviculare. (05 Mar 2000) |
| interclinoid ligament | <anatomy> A band of dura mater connecting the anterior and posterior clinoid processes of the sphenoid bone; may become ossified. (05 Mar 2000) |