Honors Biology: Pig Disection

Urinary bladder

Stores urine until it's expelled from the body.

Ureter

Transports urine from the kidneys to the bladder.

Kidneys

Filter blood, remove waste, regulate water balance, and produce hormones.

Larynx

Produces voice and protects the airway during swallowing.

Diaphragm

Main muscle for breathing; contracts to inhale and relaxes to exhale.

Lungs

Facilitate gas exchange between air and blood.

Trachea

Conducts air to and from the lungs.

Pulmonary artery

Carries deoxygenated blood from the heart to the lungs.

Aorta

Distributes oxygenated blood from the heart to the rest of the body.

Ventricles

Pump blood out of the heart (right to lungs, left to body).

Atria

Receive blood entering the heart (right from body, left from lungs).

Heart

Pumps blood throughout the body.

Esophagus

Transports food from the throat to the stomach.

Stomach

Begins protein digestion, produces gastric juices, and churns food.

Mesentery

Supports and supplies blood to abdominal organs.

Large intestine

Absorbs water, forms and stores stool.

Small intestine

Main site of nutrient absorption from digested food.

Gallbladder

Stores and concentrates bile for fat digestion.

Pancreas

Produces digestive enzymes and hormones (insulin, glucagon) for blood sugar regulation.

Liver

Detoxifies blood, produces bile, stores glucose, synthesizes proteins, and processes nutrients.

Rectum

Stores stool before elimination and signals when defecation is necessary.