Lab 1 - Body Parts

Internal Anatomy of the Pig

(_) cavity = the empty space in the mouth

(_) = roof of mouth with underlying bone

(_) = the softer tissue posterior to the —

buccal, hard palate, soft palate

(_) = the open space behind the buccal cavity, passageway for both food/drink and air

pharynx

(_) = after the pharynx and before the trachea, contains vocal cords

(_) = forms the anterior wall of the larynx and protects the vocal cords

(_) = blocks the larynx during swallowing

larynx, thyroid cartilage, epiglottis

(_) = transports air to bronchi from larynx, pale to white in color, has cartilage rings

trachea

(_) = dorsal to the trachea, pink, carries food to the stomach

esophagus

(_) = membrane lining the walls of the thoracic cavity and surrounding the lungs, allows lungs to move smoothly

pleura

(_) = paired organs that take in air

(_) = located caudally to the larynx and ventrally to the —

lungs, heart

(_) = membrane surrounding the heart, prevents the heart from over expanding

pericardium

(_) = skeletal muscle that separates the thoracic cavity from the abdominal cavity, contraction increases the size of the thoracic cavity

diaphragm

(_) = the membrane that lines the adnominal cavity, serves as a conduit for blood, lymph vessels, and nerves

peritoneum

(_) = large purplish brown organ, maintains levels of nutrients in the blood, secretes bile

liver

(_) = stores and excretes bile

(_) = produces hydrochloric acid and pepsinogen, begins the digestion of proteins

(_) = part of the peritoneum, webby, leukocyte production occurs here

gall bladder, stomach, greater omentum

(_) = purplish red organ located on left side of the stomach, it is the largest (_) organ, and it removes old and damaged (_)

spleen, lymphatic, red blood cells

(_) = found in the duodenal loop, chewed gum appearance, has both endocrine and exocrine functions

pancreas

(_) = comprised of three parts, (_), (_), and (_), and as a whole is responsible for digestion of foodstuffs and absorption of digestive products

small intestine, duodenum, jejunum, ileum

(_) = the first part of the small intestine, receives chyme from the stomach, forms duodenal loop, produces (_) to neutralize acidic chyme

duodenum, bicarbonate

(_) = middle and longest portion of the small intestine, digestion of proteins and carbohydrates, absorption of amino acids, monosaccharides, calcium, and iron

jejunum

(_) = third part of small intestine, absorption of bile salts, water, electrolytes, and B12, the (_) regulates flow of material from this to the large intestine

ileum, ileocecal valve

(_) = the folds of the peritoneum that connect and anchor the small intestine

(_) = the network of blood vessels that deliver blood and nutrients to the liver

mesentery, hepatic portal system

(_) = comprised of (_), (_), and (_), overall absorbs remaining water content, usually green in color

large intestine, cecum, colon, rectum

(_) = microbial fermentation and absorption of fermentation products and water takes place here

cecum

(_) = the longest part of the large intestine, microbial fermentation and absorption of fermentation products and water takes place here

colon

(_) = the last part of the large intestine, forms fecal matter shape

rectum

(_) = external opening of the digestive tract

(_) = two organs that remove waste products from the blood

(_) = stores urine in mammals

anus, kidneys, urinary bladder