ENTO 208: INTERNAL ANATOMY
27 Cards in this Set
| Front | Back |
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Mouth
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The anterior opening to the intestine.
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Salivary Glands
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Lie beneath the crop. Connected to the salivary duct which opens at the base of the hypopharynx.
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Pharynx
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Short funnel-shaped portion of the digestive tract back of the mouth.
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Esophagus
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Short tube leading from the pharynx to the crop.
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Crop
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Posterior end of the esophagus widens into the thin-walled crop.
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Gizzard (Proventriculus)
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Behind the crop.
Muscular walls. Lined with teeth or ridges.
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Ventriculus (Stomach)
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Relatively large simple tube.
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Gastric Caeca
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Blind-end tubes that open into the anterior part of the stomach
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Malpighian Tubes
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Hair-like tubes attatched at the junction of the stomach and the ileum.
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Anterior Intestine (Ileum)
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Anterior division of the intestine which extends from the stomach to the colon.
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Posterior Intestine (Colon)
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Short, narrow portion connecting the ileum to the rectum.`
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Rectum
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Posterior division of the intestine which collects undigested waste material before expeled from the body.
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Anus
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Posterior opening to the intestine
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Brain
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Large ganglion in the head which innervates the antennae and eyes, and coordinates the avtivites of the insects.
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Subesophageal Ganglion
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Small ganglion below and behind the brain, which innervates the mouthparts.
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Thoracic Ganglia
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Large ganglion located in each of the thoracic segments.
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Commissures
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Nerves which connect the ganglia.
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Ovaries
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Paired, cylindrical, tapering masses, composed of groups of tubes called ovarioles in which eggs are formed.
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Oviducts
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Tubes leading posteriorly from the ovaries to the vagina.
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Vagina
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Central duct through wich eggs pass before being deposited.
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Spermatheca
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Sperm receptacle. A pouch, opening dorsally into the vagina.
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Accessory Glands
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Tubes of a glandular nature which lie at the anterior end of the oviducts
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Testes
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Paired groups of sperm tubes which lie in the upper front region of the abdomen.
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Vasa Deferentia
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Ducts leading from the testes to the ejactulatory duct.
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Simenal Vesicles
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A group of tubes which open into the ejaculatory duct.
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Accessory Glands
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Glandular pouches (modified seminal vesicles) which open into the ejaculatory duct.
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Ejaculatory Duct
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Central exit tube of the genital system.
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ENTO 208 - Insect Orders