Main Organs

Question 1

1st main organ is ____ and function is _____

Answer 1

1. Mouth
2. entrance for food and drink
   food in mouth for 5-30 seconds

Question 2

Mouth
Mechanical digestion-
Chemical digestion-

Answer 2

1. chewing
2. saliva (enzymes

Question 3

2nd main organ is ____ and function is____

Answer 3

1. Pharynx (throat)
2. No digestion, passageway, 5 inches long

Question 4

3rd main organ is ____ and function is _____

Answer 4

1. Esophagus, 25 cm long
2. Tube connecting the pharynx to the stomach, no digestion

Question 5

Peristalsis-

Answer 5

series of wave-like muscle contractions moving food down
food in the esophagus for 4-10 seconds

Question 6

4th main organ is _______ and function is ____

Answer 6

1. Stomach, j-shaped muscular pouch on the left side, 10 in long
2. to break down food

Question 7

Mechanical Digestion in the stomach uses______
Chemical Digestion uses________

Answer 7

1. Muscle
2. Hydrochloric Acid

Question 8

What is broken down food in your stomach called?

Answer 8

chyme

Question 9

Adults stomach holds ___ liters of food/drink

Answer 9

2

Question 10

Food is in stomach for ________
_____ saves the stomach

Answer 10

1. 2-4 hours
2. mucus

Question 11

The 5th main organ is _____ and the function is ________.

Answer 11

1. Small Intestine, 4-7 meters long
2. Absorbs nutirents and further digests food

Question 12

The small intestine ______ long and is where __________ takes place.

Answer 12

1. 4-7 meters
2. most chemical digestion

Question 13

Villi are_____________and the function is _______. They increase _______, and there are _____________ of them.

Answer 13

1. small finger-like projections of tissue
2. surface area of the small intestine
   Absorbs nutrients
   Has blood vessels; blood carries nutrients
3. Millions of villi

Question 14

What are the 3 parts of the small intestine?

Answer 14

1. Duodenum
2. Jejunum
3. Ileum

Question 15

The 6th main organ is _____________ and the function is _______________.

Answer 15

1. Large Intestine (Colon)
2. Absorbs water

Question 16

The Large intestine is ________ long and shaped like ____________. Contains __________ and what is left is ready to __________.

Answer 16

1. 1 ½ meters (size of a bathtub)
2. a horseshoe
3. bacteria that help with vitamin k
4. leave the body as waste

Question 17

The 7th main organ is ___________ and the function is ___________.

Answer 17

1. Rectum
2. storage for human waste
   Waste exiting through the short tube

Question 18

Final section of the large intestine is the __________?

Answer 18

1. Rectum

Question 19

The 8th (last) main organ is ____________ and it is at the bottom of the ___________.

Answer 19

1. Anus
2. Rectum

Question 20

The circular muscle is called ________.

Answer 20

external sphincter