Ths anatomy unit 1 introduction rat notes (2015-2016)

Ths anatomy unit 1 introduction rat notes (2015-2016)

1. ANATOMY Unit 1 Notes: Rat Dissection

2. (1) Internal Organs Rats will be dissected to observe main internal organs. You need to identify, and know the function of: Heart Lungs Ribs Diaphragm Liver Gallbladder Stomach Small Intestine Large Intestine Kidneys Spleen

3. (2) Internal Organ Locations Heart: Under ribs, in between lungs. Small, red-brown. Lungs: Below ribs, sides of heart. Soft brown-gray flaps. Ribs: Hard bone in chest. Diaphragm: Directly below chest, on top of digestive organs. Thin, but tough muscle.

4. (2) Internal Organ Locations Liver: Rat’s right side, below ribs. Largest internal organ. Dense, red-brown/gray. Stomach: Rat’s left side, below ribs. Soft, flesh-colored, sac. Small Intestine: Skinny tube directly connected to stomach. Large Intestine: Thicker tube connected to sm.intestine and anus. Spleen: Lays over top of stomach + intestines. Red-brown, tongue shaped. Rat’s left side.

5. (3) Special Internal Organs Kidneys: Located along the back (under all digestive organs). 2 of them. Red-brown, one on right and one on left. Gallbladder: Rats do not contain one, but humans do. Rats simply use stomach + small intestine chemicals to digest fats. Function  Secrete bile for lipid (fat) metabolism.

6. Yes you need to draw this!!

7. (4) Basic Organ Function Heart: Pump blood + circulate nutrients. Lungs: Bring in oxygen + expel carbon dioxide. Ribs: Protect soft tissues/organs. Diaphragm: Help lungs fill with air. Stomach: Metabolize food.

8. Small Intestines: Absorb nutrients from food. Large Intestine: Expel food waste. Liver: Break down bad blood cells + toxins. Kidneys: Filter blood. Spleen: Help monitor red-blood cell function and immune system. (4) Basic Organ Function