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Majors animal: Anatomy of a bivalve (matching)

Incurrent and excurrent siphons Extendable, fleshy tubes that transport water into and out of the body
Gills Used primarily for respiration and filter feeding; female freshwater mussels brood eggs in special gill pouches
Mantle Thin membrane that secretes the shell
Shell Hard outer covering that protects soft internal organs; composed on a mixture of calcium carbonate and protein
Foot Muscular region adjacent to visceral mass; used for burrowing and locomotion
Visceral mass Pouch that houses several major internal organs
Adductor muscles Large, tubular muscles located at the anterior and posterior ends of the animal; close shell and hold valves tightly together
Labial palps Fleshy folds of skin located near the mouth that collect food particles from the gills and transport them to the mouth
Mouth Ingestion of food
Esophagus Short tube through which food passes from mouth to stomach
Stomach Small chamber located within visceral mass for food storage
Digestive gland Greenish, glandular tissue that secretes digestive enzymes into stomach and intestine to assist in the chemical breakdown of food
Intestine Coiled digestive tract where absorption of nutrients occurs
Anus Elimination of indigestible wastes (egestion)
Gonad Produces gametes for reproduction
Heart Muscular portion of circulatory system that receives blood from gills and pumps it through short arteries into neighboring tissues and organs
Kidney (nephridium) Excretory organ of bivalve that filters nitrogenous wastes from the hemolymph and eliminates them from the body
Created by: scandalouscanine