| FACH | forceps to after-coming head |
|---|---|
| FH | facial hemihyperplasia; familial hypercholesterolemia; family history; fasting hyperbilirubinemia; f... |
| H/A | head to abdomen; headache |
| HAT | Halsted Aphasia Test; head, arm, trunk; heparin-associated thrombocytopenia; heterophil antibody tit... |
| HCF | [fetal] head-to-cervix force; heparin cofactor; hereditary capillary fragility; highest common facto... |
| head of malleus | The rounded portion of the malleus articulating with the body of the incus. Synonym: caput mallei. (05 Mar 2000) |
|---|---|
| head of mandible | The expanded articular portion of the condylar process of the mandible. Synonym: caput mandibulae. (05 Mar 2000) |
| head of metacarpal bone | The expanded distal end of a metacarpal that articulates with the proximal phalanx of the same digit. Synonym: caput ossis metacarpalis. (05 Mar 2000) |
| head of metatarsal bone | The expanded distal end of a metatarsal bone that articulates with the proximal phalanx of the same digit. Synonym: caput ossis metatarsalis. (05 Mar 2000) |
| head of pancreas | That portion of the pancreas lying in the concavity of the duodenum. Synonym: caput pancreatis. (05 Mar 2000) |
| head of phalanx | The rounded articular surface at the distal end of the proximal and middle phalanx of each finger and toe. Synonym: caput phalangis, trochlea phalangis. (05 Mar 2000) |
| head of radius | The disk-shaped upper extremity articulating with the capitulum of the humerus. Synonym: caput radii. (05 Mar 2000) |
| head of rib | The rounded medial extremity of a rib which, except for ribs 1, 10, 11, and 12, articulates by two facets with the bodies of two contiguous vertebrae. Synonym: caput costae. (05 Mar 2000) |
| head of stapes | The portion of the stapes that articulates with the lenticular process of the incus. Synonym: caput stapedis. (05 Mar 2000) |
| head of talus | The rounded anterior portion of the talus articulating with the navicular bone. Synonym: caput tali. (05 Mar 2000) |
| head of the caudate nucleus | The head or anterior extremity of the caudate nucleus projecting into the anterior horn of the lateral ventricle. Synonym: caput nuclei caudati, anterior extremity of caudate nucleus. (05 Mar 2000) |
| head of ulna | The small rounded distal extremity of the ulna articulating with the ulnar notch of the radius and the articular disk. Synonym: caput ulnae. (05 Mar 2000) |
| head presentation | Presentation of any part of the foetal head, usually the upper and back part as a result of flexion such that the chin is in contact with the thorax in vertex presentation; there may be degrees of flexion so that the presenting part is the large fontanel in sincipital presentation, the brow in brow presentation, or the face in face presentation. Synonym: head presentation. (05 Mar 2000) |
| head process | The primordium for the notochord. See: notochordal process. (05 Mar 2000) |
| head protective devices | Personal devices for protection of heads from impact, penetration from falling and flying objects, and from limited electric shock and burn. (12 Dec 1998) |