Jul 01, 2013 · The gut of the crayfish is divided into five parts: esophagus, large cardiac stomach (Fig. 3A and 3C), smaller pyloric stomach (Fig. 3B), midgut (intestine) and hindgut (rectum). The esophagus was not identified in this study. The stomach occupies most of the cephalothoracic cavity.
The dynamic part is the blood, with all its constituent parts that flows continuously around the fish's body. The static parts are the heart, the At the centre of the static (comparatively) parts of the fish circulatory system is the fish's heart, which is normally situated below the pharynx and immediately...
Use the diagram of the internal anatomy of the crayfish to locate and identify the organs of the circulatory system. Locate the dorsal tubular heart and several arteries. The crayfish has an open circulatory system in which the blood flows from arteries into sinuses, or spaces, in tissues.Crayfish Dissection - Internal Anatomy - Mrs.
Females excrete pheromones which are detected by the antennules of males. The openings of the sex organs are located on the front end of the abdomen just below the thorax. In the male, the first two pairs of abdominal pleopods are used as organs of sperm transfer. Using his first set of pleopods, the male deposits sperm into a sac on the female's abdomen.
Role of the Circulatory System: A network of blood vessels that distributes gases, nutrients, waster products, and cell products (hormones) and distributes heat Unicellular organisms such as bacteria do not Role of the Circulatory System: Can We Help with Your Assignment? Let us do your homework!
Apr 27, 2008 · There is a digestive tract that begins with a prostomium with a mouth, a muscular pharynx, an esophagus, a crop for storage of food, a gizzard for breaking food down (much as a stomach acts in humans) and a small intestine where the nutrients are absorbed into the blood for delivery to cells.
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This system holds the function of gas exchange between internal and external environments. There are many different types of respiratory systems - for example: lungs, tracheal tubes, plasma membranes, and gills. The centipede has a tracheal tube respiratory system that has several different primary parts.