Pig dissection - Bell ringer

Umbilical vein

Carries oxygen and nutrients from the mother's arterial blood to the fetus.

Umbilical artery

Carries deoxygenated blood and metabolic waste products away from the fetus to the placenta.

Tongue

A manipulative, muscular structure that helps with chewing, swallowing, and sensing food.

Epiglottis

A fold of skin that covers the opening to the trachea during swallowing to prevent food from entering.

Hard palate

Made of bone, separates the oral cavity from the nasal cavity.

Soft palate

Rises to prevent food from going into the nasal cavity, contains no bone.

Larynx

The voice box where vocal cords are located and air passes through before the trachea.

Thyroid gland

Controls the speed of metabolism.

Trachea

A windpipe that carries air into the lungs.

Lung

Performs gas exchange by inhaling oxygen and exhaling carbon dioxide.

Diaphragm

A sheet-like muscle that lowers when inhaling and rises when exhaling, critical for breathing.

Esophagus

A tube that carries food from the mouth to the stomach, connecting the oral cavity to the stomach.

Stomach

Holds food and mixes it with acid and enzymes to break it down.

Gastroesophageal sphincter

Valve that keeps food and stomach acid in the stomach, preventing the contents in to stomach from going back up the esophagus

Pyloric sphincter

A ring-like muscle that governs the passage of chyme from the stomach into the small intestine.

Small intestine

Where digestion continues and absorption of nutrients occurs.

Large intestine

Absorbs water, salts, and some vitamins; prepares undigested materials for feces.

Spleen

An immune system organ that fights infection and breaks down expired red blood cells.

Pancreas

Secretes insulin and pancreatic juices to aid in digestion.

Liver

Produces bile and sends it to be stored in the gallbladder.

Gallbladder

Stores and releases bile to aid in digestion.

Caecum

A dead end that receives material from the small intestine.

Rectum

Stores feces before excretion.

Heart

Pumps blood around the body through veins and arteries.

Atria

Chambers that receive blood from the body.

Ventricles

Chambers that pump blood to the body.

Aortic arch

Carries oxygenated blood under high pressure and distributes it to three main arteries.

Coronary artery

Main supply of oxygenated blood to the heart.

Pulmonary artery

Carries deoxygenated blood from the heart to the lungs.

Thymus

Responsible for the production and maturation of immune cells.

Kidney

Removes waste from the blood and produces urine.

Ureter

Tube through which urine passes to reach the urinary bladder.

Bladder

Stores urine until it is eliminated.

Urethra

Tube that allows urine to exit the body from the bladder.

Epididymis

Storage place for sperm before it enters the ductus deferens.

Testes

Where sperm production and sex hormone production take place.

Gubernaculum

Guides the descent of the testes into the scrotum.

Penis

Used for urination and reproduction.

Ovary

Contains all the developing eggs a female will ever have and produces hormones

Oviduct/Fallopian tube

Receives the egg during ovulation and sends it to the uterus.

Uterus

Receives a fertilized egg and protects the fetus while it develops and grows.