Rat Dissection Anatomy
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Created by:
J-Townsend on May 25, 2010
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Classes:
Landon Study Guides (Class of 2013)
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58 terms
Terms | Definitions |
|---|---|
 Ears | sensory organ that can distinguish pitch and loudness of vibrations in the air around us |
| Whiskers | specialized hairs that are used for feeling around in the dark |
| Nostrils | allows air to flow into body, and is an opening in nose, sense of smell |
| Anus | external opening of the rectum, part of excretory system, controls the expulsion of feces and waste |
| Tail | flexible appendage that functions as way to balance and as a heat loss organ |
| Claws | used to fend off prey to protect themselves and to get food and compete with other rats |
| Teeth | part of digestive system, chew up food, gnawing ability in rats |
| Testicles | male reproductive gland that produce and store sperm |
| Muscles | Three difference types of muscle (smooth, skeletal, cardiac), voluntary movements, involuntary movements, and in the heart |
| Bones | support the body, protects internal organs, movement, mineral reserves, blood formation |
| Tendons | connect muscles to bones and are a form of connective tissue |
| Ligaments | connect bone to hold the bones together |
| Peritoneum | covers the abdominal organs, membrane that forms the lining of the abdominal cavity |
| Mesentery | membrane that surrounds and supports the digestive system |
| Vasculature | blood vessels that are a part of circulatory system |
| Fat | saturated and unsaturated fats, stored energy for organism |
| Liver | produces bile that dissolves and disperses fat, allowing enzymes to reach the fat |
| Spleen | store red and white blood cells, part of the lymphatic system |
| Diaphragm muscle | large flat muscle that allows for breathing by contracting and expanding and changing the volume of the chest cavity |
| Stomach | continues mechanical digestion of food with contractions of smooth muscle, contains mucus, hydrochloric aced and enzyme pepsin |
| Pylorus | muscle in stomach that connects to the duodenum |
| Esophagus | food tube tat leads to the stomach where bolus passes through, moves through peristalsis |
| Pyloric sphincter | a muscular valve that lets food pass from the stomach to the duodenum |
| Small intestine | adapted to absorb nutrients with projections called villi |
| Duodenum | first section of small intestine where the stomach joins the small intestine |
| Large intestine | removes water from undigested materials called feces |
| Pancreas | controls blood sugar levels with hormone commands to the leaver |
| Kidneys | excrete waste, filter blood, and regulate the pH levels of the blood, remove urine and water from body |
| Abdominal Aorta | is a portion of the descending aorta that carries oxygenated blood to bottom part of the body |
| Inferior Vena Cava | takes deoxygenated blood from the bottom of body and brings it to heart |
| Adrenal glands | release many hormones |
| Urinary bladder | saclike organ where urine is stored before it is excreted |
| Ureters | tube that leaves kidney and carries urine to urinary bladder |
| Urethra | tube where urine exits the body, as well as sperm |
| Ovaries | produce egg cells in females |
| Oviducts | passageway from ovary to outside of the body |
| Uterus | sex organ that connects the vagina to the urogenital opening, where fetus develops |
| Vagina | tract that leads from uterus to outside of the body |
| Scrotum | skin and muscle that contain the testes |
| Epididymis | stores sperm and leads to vas deferens |
| Vas deferens | tube that attaches to the urethra and carries sperm from epididymis |
| Urethra | carries sperm out of the body through the penis |
| Penis | male reproductive organ that releases sperm and urine |
| Prostate | release alkaline fluid that constitutes much of the volume of semen |
| Membranes | barrier of an organ, lubricated surface, allow two sets of organs to move vigorously without wearing each other away |
| Pericardium | protective sac of tissue that covers the heart |
| Lungs | where blood picks up oxygen and gets rid of carbon dioxide |
| Lobes | a division of a bodily organ |
| Right Atrium | receives blood from the superior and inferior vena cavas |
| Left atrium | receives freshly oxygenated blood from the lungs via the pulmonary vien |
| Left ventricle | sends oxygenated blood out the descending and ascending aortas to the body |
| Vena Cavas | veins that take the deoxygenated blood towards the heart and bring to right atrium |
| Pulmonary Vein | takes oxygenated blood from the lungs to the heart (left atrium) |
| Ascending and Descending Aorta | carries oxygenated blood from heart to the rest of the body |
| Coronary arteries | blood vessels across the heart that branch off the aorta and feed the heart muscle |
| Thymus gland | helps the immune system develop and recognize what is an enemy and what is not |
| Trachea | wind pipe that transports air |
| Bronchi | leads to one of the lungs, subdivide into bronchioles, then subdivide until the reach the tiny air sacs called alveoli |
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