4/18 - Shark Digestive System

[Christopher Fisher]

Following the instructions on page 13 in the manual, find and define the following organs:

Esophagus

Stomach

Duodenum

Liver

Pancreas

Spiral Intestine

Rectum

Spleen

[Noah Abraham]

Jamie, Corey, Katrina and Noah
1.The sharks digestive system contains a spiral intestine, gastric artery and vein as well as a rectal gland
2. The shark contains a sinus venosus rather than a heart that contains deoxygenated blood. It as well contains a conus arteriosus.
3. We positioned the shark on it's back
4. The pectoral girdle contains strong cartilage that protects the heart and gills
5. The shark has an atrium just like a human heart does

[jumpmjump]

On Wednesday, April 30, 2014 10:38:33 AM UTC-5, Christopher Fisher wrote:

Following the instructions on page 13 in the manual, find and define the following organs:

Esophagus-The connection betw4een the pharynx to the stomach. In the shark the esophagus is very short and wide 

Stomach-stomach ends at the pyloric sphincter- a muscular ring which opens or closes the stomach into the intestine

Duodenum-this is short section immediantly cudal from the stomach. receives liver secreations known as bile from the bile duct

Liver-the liver is composed of three lobes, two large and one smaller. The gall bladder is located within the smaller lobe. The bladder stroes the bile secreted by the liver. 

Pancreas-divided intot tw parts. Ventral pancreas and dorsal pancreasw 

Spiral Intestine-located crankily from the duodenum and distinguished by the extensive network of arteries and veins over it's surface

Rectum-this is the short ended protion of the digestive tract between the intestine and the cloaca. The rectum stores solid wastes

Spleen-located just caudal to the stomach and proximal (before) to the sprial intestine. This organ is not part of the digestive tract, but is associated with the circulatory sysstem.