test - digestive system

Question 1

54. What are the very front teeth called?

Answer 1

Incisors nb.pg. 72

Question 2

48. What does the pancreas do for the duodenum?

Answer 2

it releases digestive juices that aid in chemical digestion in the duodenum. nb pg.75

Question 3

52. What lines the duodenum and what does it do?

Answer 3

Villi lines the duodenum and it creates more surface area for nutrients to be absorbed. nb pg.75

Question 4

53. What absorbes the most food?

Answer 4

The duodenum nb pg.75

Question 5

50. What is the duodenum?

Answer 5

the beginning of the small intestine. nb pg.72

Question 6

55. How does the mouth aid in digestion?

Answer 6

Mechanical digestion - teeth (incisors) cut and tear (canine) food into smaller pieces. They (molars)balls crush and grind food. Chemical digestion - saliva moistens food, making it easier to swallow. saliva contains and enzyme salivary amylase that chemically breaks down starch into smaller sugar molecules called maltose. the tongue mixes and positions the food for swallowing. nb pg.75