Pig dissection - Bell ringer

Photo

Location

Definition

Umbilical vein: The umbilical vein carries oxygen and nutrient from the mothers arterial blood to the fetus

Umbilical artery: The umbilical arteries carry deoxygenated blood and metabolic waste products away from the fetus to the placenta

Tongue: The tongue is a manipulative, muscular structure that helps with chewing, swallowing and sensing food

Epiglottis: The epiglottis is a fold of skin that covers the opening to the trachea during swallowing to prevent food from entering

Hard palate: The hard palate is made of bone, that separate the oral cavity from the nasal cavity

Soft palate: The soft palate rises to prevent food from going into the nasal cavity. It contains no bone

Larynx: The larynx is the voice box. It is where our vocal cords are and what air passes through before our trachea

Thyroid gland: The thyroid gland controls the speed of ones metabolism

Trachea: The trachea is a windpipe that carries air into the lungs

Lung: does gas exchange by inhaling oxygen and having it enter the bloodstream and at the same time carbon dioxide is exiting the bloodstream to he exhaled

Diaphragm: Is a sheet-like muscle that lowers when inhaling and rises when exhaling. It plays a critical role in breathing

Esophagus: It is a tube that carries food from the mouth to the stomach. It connects the oral cavity to the stomach

Stomach: Holds food and mixes it with acid and enzymes to break the food down

Gastroesophageal sphincter: Valve that keeps food and stomach acid in the stomach. It prevents the contents in to stomach from going back up the esophagus

Pyloric sphincter: Is a ring like muscle that governs the passage of chyme from the stomach into the small intestine

Small intestine: The small intestine is where digestion of food continues and absorption of nutrients occur

Large intestine: The large intestine absorbs water, salts and some vitamins. It also prepares the undigested materials for feces

Spleen: It is an immune system organ that fights infection and breaks down expired red blood cells

(Found along the left external margin of the stomach)

Pancreas: The pancreas secretes insulin and pancreatic juices to help with digestion

Liver: the liver makes bile and sends it to be stored in the gallbladder

Gallbladder: The gallbladder stores and releases bile to aid in digestion

Caecum: Is a dead end that receives material from the small intestine

Rectum: Is where feces is stored before it is ready to be excreted

Heart: The heart pumps blood around the whole body through a series of veins and arteries

Atria: A chamber that receives blood from the body

Ventricles: A chamber that pumps blood to the body

Aortic arch: Carries oxygenated blood under high pressure and distributes it to three main arteries

Coronary artery: Is the main supply of oxygenated blood to the heart

Pulmonary artery: Carries deoxygenated blood from the heart to the lungs

Thymus: The thymus is responsible for the production and maturation of immune cells

Kidney: kidneys removes waste from the blood and produces urine

Ureter: Urine passes through to reach the urinary bladder

Bladder: Stores urine until the fluid is eliminated

Urethra: It is a tube that allows urine to exit the body.

(it is in the bladder)

Epididymis: Is a storage place for sperm before it enters the ductus deferens

Testes: Is where sperm production takes place and where sex hormones are produced

Gubernaculum: Guides the descent of the testes into the scrotum

Penis: It is used for urination and sexual intercourse

Ovary: The ovaries contain all the developing eggs a female pig will ever hav. They also produce hormones

Oviduct/Fallopian tube:

The oviduct receives the egg during ovulation and propels the eggs to the uterus

Uterus: Receives a fertilized egg and protects the fetus while is develops and grows