Digestive system anatomy

Question 1

What is the digestive system?

Answer 1

• continuous tube that begins at the mouth, ends at the anus
• about 30 feet in adult

Question 2

What is the digestive system also known as?

Answer 2

• alimentary canal
• gastrointestinal tract

Question 3

What are the glands that create saliva?

Answer 3

• parotid glands
• sublingual glands
• submandibular glands

Question 4

Facts abt tongue.

Answer 4

• muscle covered with a mucous membrane
• covered with taste buds and papillae

Question 5

Facts abt esophagus.

Answer 5

• the food moves down it towards the stomach by peristalsis
• upper and lower esophagus sphincter

Question 6

Facts abt stomach.

Answer 6

• a muscular, expandable organ
• upper portion (fundus) lower portion (antrum)
• hdrochloric acid, other gastic juices convert food to chyme

Question 7

Facts on small intestine.

Answer 7

• duodenum (the initial c part)
• jejunum (the next 8 feet)
• ilenum (the next 12 feet)
• abt 21 feet / 1 inch diameter

Question 8

Facts abt large intestine.

Answer 8

• absorb the remaining water, nutrients / store unusable food matter / eliminate the wastes
• abt 4 - 5 feet

Question 9

What are the parts of the large intestine?

Answer 9

• cecum
• ascending/transverse/ descending/sigmoid colons

Question 10

Facts abt the rectum and anus.

Answer 10

• rectum is where feces are stored
• when rectal walls expand with crap, recptors from the nervous system stimulate the desire to defecate