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Pig Dissection terms
digestive & respiratory systems
26
Biology
Undergraduate 1
02/28/2009

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Term
location & function of Larnyx
Definition

Location:  just below where the tract of the pharynx splits into the trachea and the esophagus.

Function: protection of the trachea and sound production.

Term
location and function of Trachea
Definition

Location: it's the "windpipe", just below the larnyx.

Function: allows passage of air to the lungs

**contracting rings of cartilage

Term

Glottis

Definition
opening into the larnyx
Term
Epiglottis
Definition
thin flap of cartilage protecting glottis
Term
Mandibular Gland
Definition

Function: saliva production

Location: ventral to parotid gland

Term

Soft palate

Definition
allows pig to eat & breathe simultaneously
Term
Hard palate
Definition
seperates oral cavity from nasal cavity
Term
Esophagus
Definition
narrow tubecontaining smooth muscle that contracts to push food into the stomacj
Term
Stomach
Definition
secretes digestive enzymes: hydrochloric acid & pepsinogen
Term
Duodenum
Definition

1st portion of small intestine

-receives chyme from the stomach & gallbladder& pancreas

-responsible for final stages of enzymatic digestion

 

Term
Pancreas
Definition

suports the stomach

-produces several digestive enzymes

Term
Gallbladder
Definition

stores bile

releases bile into cystic duct

Term
cystic duct
Definition
carries bile from gallbladder--->common bile duct-->duodenum
Term
Jejunem
Definition

region of small intestine tightly bound together by messentary.

- absorption of nutrients and water

-nutrients are delivered to circulatory system via messentary

Term
Alveoli
Definition

small sacs which terminate the bronchi

-oxygen is picked up in the bloodstream and CO2 is released into lungs to be expelled from body.

Term
Ileum
Definition
continues process of nutrient absorption and reabsorption of water.
Term
Colon
Definition
responsible for reabsorption of water and electrolytes; produces feces
Term

Bronchus

(bronchi L&R)

Definition

end of trachea

lead to L&R lungs

Term
diaphragm
Definition

-allows thoracic cavity to compress and expand

-drawing in fresh air and expelling stale air

-seperates abdomen and thoracic cavity

Term
Hepatic duct
Definition

carries bile from liver

-joins cystic duct to form common bile duct

Term
Cardiac sphincter
Definition

junction of esophagus and stomach

-prevents gastric juices from entering the esophagus

Term
Iliocecal valve
Definition

seperates ilium and cecum

-limits the reflux of colonic contents into the ileum

Term
Pyloric sphincter
Definition
a strong ring of smooth muscle at the end of the pyloric canal and lets food pass from the stomach to the duodenum.
Term
Large intestine
Definition

Colon & cecum

absorb water from the remaining indigestible food matter, and then to pass this useless waste material from the body

Term
Fundus
Definition
rounded part of the upper stomach
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