1. BIOLOGY Unit 7 Notes: PIG Dissections

2. (1) Organs In The Chest Cavity
Ribs: Bones covering heart and lungs.
Heart: Looks like red-brown nugget in center of chest.
Lungs:
Look like brown lobes/flaps.
1 Lung on either side of heart.
Diaphragm:
Looks like a thin, smooth piece of muscle.
Directly under ribcage.

3. (2) Organs In The Abdomen
Liver:
Largest internal organ.
On rat’s right side / On your left side.
Large, hard, brown, lobed organ.
Directly underneath diaphragm.
Stomach:
On rat’s left side / On your right side.
J-Shaped, squishy sac.
Small Intestine:
Flesh colored, squiggly tube.
Small = Thin in diameter.
Middle of abdomen, connecting to stomach.
Large Intestine:
Large = Thick in diameter.
Middle of abdomen, connecting to anus.

4. (3) Organs Along The Back
Kidneys:
Look like kidney beans.
Red-brown color.
Must remove all other digestive organs first.
Lie along lower back, 1 on each side.

6. Yes you need to draw this!!

7. (4) Basic Organ Function
Heart: Pump blood + circulate nutrients.
Lungs: Bring in oxygen + expel carbon dioxide.
Diaphragm: Help lungs fill with air.
Stomach: Metabolize food.
Small Intestines: Absorb nutrients from food.
Large Intestine: Expel food waste.
Liver: Break down bad blood cells + toxins.
Kidneys: Filter blood.