Annular

(an'-u-lar) [annulus, a ring]. Ring- like. A. Cartilage, the cricoid cartilage.

A. Finger, the ring-finger. A. Ligament, the ligament surrounding the wrist and the ankle. A. Muscle of Muller, the circular fibers of the ciliary muscle. A. Process, A. Protuberance, the pons varolii. A. Re- flex(of macula), a ring-like reflection some- times seen with the ophthalmoscope around the macula.

Annulus ian'-u-lus) [see Annular]. A ring- shaped or circular opening. A. abdomin- alis, the external or internal abdominal ring.

A. abdominis, the inguinal ring. A. ciliaris, the boundary between the iris and the choroid.

A. fibrosus. 1. The external part of the intervertebral discs. 2. Firm connective tis- sue containing elastic fibers surrounding the auriculoventricular openings of the heart.

Syn., Annulus -fibrosus atrioventricular.

A. inguinalis abdominalis, the internal abdominal ring. A. inguinalis cutaneus, the external abdominal ring. A. membranse tympani, an incomplete bony ring that forms the fetal auditory process of the tem- poral bone. A. migrans, a disease of the tongue marked by crescentic bands of a light -colored rash which spread over its dorsal surface and sometimes over the sides and under surface. Syn., Annulus errans.

A. osseus, the tympanic plate. A. ovalis, the rounded or oval margin of the foramen ovale. A. tracheae, a tracheal ring. A.

umbilicus, the umbilical ring. A. ventri- culi, the pylorus.

Annular Resources
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