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BIOL212
Majors animal: Internal anatomy of the pigeon (matching)
| Anatomy | Physiology |
|---|---|
| Larynx | Opens and closes glottis during respiratory cycle and prevents foreign material from entering the lower respiratory tract |
| Trachea | Conducts air to and from the lungs during respiration |
| Lungs | Paired organs of respiration connected to air sacs permitting unidirectional flow of air |
| Heart | Four-chambered organ (two atria, two ventricles) that receives oxygenated blood from the lungs and pumps it via the arteries throughout the body |
| Esophagus | Transports food to the crop |
| Crop | Stores ingested food to await passage to gizzard; found in seed- and grain-eating species |
| Proventriculus | Mixes food with peptic enzymes for digestion |
| Gizzard | Thick-walled, muscular pouch that pulverizes and churns food prior to its passage into the intestine; larger in seed-eating species |
| Pancreas | Produces digestive enzymes that are released into the small intestine |
| Large intestine | Continued digestion of food particles; transports feces to coprodeum of cloaca via peristalsis |
| Cloaca | Common chamber for the collection of materials fromt the digestive, excretory, and reproductive systems prior to their discharge from the body; partitioned into a coprodeum, urodeum, and proctodeum as in reptiles |
| Uropygeal gland | Secretes oily compound that coats feathers, preventing them from getting wet |
| Vasa deferentia | Transport sperm from the testes to the urodeum of cloaca |
| Testes | Produce sperm |
| Ovary | Single organ (left only) that produces ova |
| Ureters | Transport uric acid mixture from kidneys to the cloaca |
| Kidneys | Paired organs that filter nitrogenous wastes from the blood and produce dry uric acid with little water that is transported to the urodeum of the cloaca, where it mixes with feces as it is released from the body |
| Auditory tube | Channels sound waves to auditory receptors; similar to the ear canal of humans |
| Cerebellum | Primarily a reflex center for the integration of skeletal muscle movements; responsible for coordination and balance |
| Optic lobes | Process visual information from the eyes |
| Cerebrum | Largest portion of the brain; interprets sensory impulses and coordinates voluntary movements |
Created by:
scandalouscanine
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