| ANS | Symbol for anterior nasal spine. (05 Mar 2000) |
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| ansa | Origin: L, a handle. <astronomy> A name given to either of the projecting ends of Saturn's ring. Source: Websters Dictionary (01 Mar 1998) |
| ansa cervicalis | A loop in the cervical plexus consisting of fibres from the first three cervical nerves. Fibres from a loop between the C-1 and C-2 spinal nerves accompany the hypoglossal nerve for a short distance, leaving it as the superior root of the ansa cervicalis. Fibres from a loop between the C-2 and C-3 spinal nerves form the inferior root of the ansa cervicalis. Most commonly, the roots merge, forming the ansa cervicalis, which gives rise to branches innervating infrahyoid muscles. Synonym: cervical loop, loop of hypoglossal nerve. (05 Mar 2000) |
| ansa hypoglossi | Former name for ansa cervicalis. (05 Mar 2000) |
| ansa lenticularis | The pallidal efferent fibres curving around the medial border of the internal capsule. Synonym: ansa lenticularis, lenticular ansa. (05 Mar 2000) |
| ansa peduncularis | A complex fibre bundle curving around the medial edge of the internal capsule and connecting the anterior part of the temporal lobe (temporal cortex), amygdala, and olfactory cortex with the mediodorsal nucleus of the thalamus; it enters the thalamus as a component of the inferior thalamic peduncle which also contains a major part of the fibres connecting the mediodorsal nucleus to the orbitofrontal cortex. Synonym: peduncular ansa, peduncular loop, Reil's ansa. (05 Mar 2000) |
| ansa sacralis | A nerve cord connecting one or both of the sympathetic nerve trunks with the ganglion impar. (05 Mar 2000) |
| ansa subclavia | A nerve cord connecting the middle cervical and stellate sympathetic ganglia, forming a loop around the subclavian artery. Synonym: subclavian loop, Vieussens' ansa, Vieussens' loop. (05 Mar 2000) |
| ansae nervorum spinalium | Loops of the spinal nerves, connecting ventral primary rami of the spinal nerves. Synonym: ansae nervorum spinalium. (05 Mar 2000) |
| ansate | In the shape of a loop or arc. Synonym: ansate. Origin: L. Ansa, handle, + forma, shape (05 Mar 2000) |
| anseres | <ornithology> A Linnaean order of aquatic birds swimming by means of webbed feet, as the duck, or of lobed feet, as the grebe. In this order were included the geese, ducks, auks, divers, gulls, petrels, etc. Origin: L, geese. Source: Websters Dictionary (01 Mar 1998) |
| anseriformes | <ornithology> A division of birds including the geese, ducks, and closely allied forms. Source: Websters Dictionary (01 Mar 1998) |
| anserine | 1. Pertaining to, or resembling, a goose, or the skin of a goose. 2. <zoology> Pertaining to the Anseres. Origin: L. Anserinus, fr. Anser a goose. Source: Websters Dictionary (01 Mar 1998) |
| anserine bursa | <anatomy> The bursa between the tibial collateral ligament of the knee joint and the tendons of the sartorius, gracilis, and semitendinosus muscles. Synonym: bursa anserina, tibial intertendinous bursa. (05 Mar 2000) |
| anserine bursitis | Inflammation of the anserine bursa lying between the pes anserinus and the upper medial surface of the tibia. (05 Mar 2000) |