- circular muscle layer
1. The outermost muscular layer.2. (BRYOZOA: Phylactolaemata)3. (ECHIURA)In all, except for genus Ikeda.4. (SIPUNCULA)May be grouped into defined bands or fasicles or formed in sheets.
Online Dictionary of Invertebrate Zoology. A.R. Maggenti and S.L. Gardne. 2005.
Look at other dictionaries:
muscle layer(s) — 1. One or more layers of muscle below the epithelium. 2. (BRYOZOA: Phylactolaemata) Both longitudinal and circular muscles between epithelial and peritoneal layers of the colony wall … Dictionary of invertebrate zoology
Muscle — is the tissue of the body which primarily functions as a source of power. There are three types of muscle in the body. Muscle which is responsible for moving extremities and external areas of the body is called "skeletal muscle." Heart… … Medical dictionary
muscle — muscleless, adj. muscly, adj. /mus euhl/, n., v., muscled, muscling, adj. n. 1. a tissue composed of cells or fibers, the contraction of which produces movement in the body. 2. an organ, composed of muscle tissue, that contracts to produce a… … Universalium
Circular folds — Interior of the descending portion of the duodenum, showing the Major duodenal papilla. Latin plicae circulares Gray s … Wikipedia
layer — A sheet of one substance lying on another and distinguished from it by a difference in texture or color or by not being continuous with it. SEE ALSO: stratum, lamina. SYN: panniculus. ameloblastic l. the internal l. of the enamel organ. SYN: enam … Medical dictionary
Muscular layer — LAYERS (Muscular layer includes the 2nd through 4th layers): serosa longitudinal muscle myenteric plexus circular muscle submucosal plexus submucosal mucosal … Wikipedia
Iris sphincter muscle — Iris, front view. (Muscle visible but not labeled.) … Wikipedia
Ciliary muscle — The choroid and iris. (Ciliary muscle is labeled near top.) Latin musculus ciliaris Gray s … Wikipedia
Inferior pharyngeal constrictor muscle — Muscles of the pharynx and cheek. (Constrictor pharyngis inferior visible at bottom left.) … Wikipedia
digestive system, human — Introduction the system used in the human body for the process of digestion. The human digestive system consists primarily of the digestive tract (alimentary canal), or the series of structures and organs through which food and liquids pass… … Universalium