Chapter 6 (Digestive System)

Question 1

what does the digestive system do?

Answer 1

provides the mechanisms by which food travels and is digested or broken down into absorbable form.

Question 2

T or F. all of the organs of digestion are in the abdominal cavity

Answer 2

False, all except for mouth and esophagus.

Question 3

steps of getting to the stomach

Answer 3

broken down by chewing and saliva, from mouth through oropharynx into esophagus then to stomach.

Question 4

what organs all work in the digestive process?

Answer 4

stomach, small/large intestine, liver, gallbladder, pancreas, spleen, appendix

Question 5

stomach

Answer 5

hollow organ, expands.

Question 6

acidic gastric juices in the stomach do what?

Answer 6

begin to break food down that the body can convert to energy.

Question 7

small intestine

Answer 7

divided into three parts: duodenum, jejunum and ileum. receives food and breaks down for absorption.

Question 8

Where are nutrients absorbed by the body?

Answer 8

through wall of small intestine

Question 9

large intestine (colon)

Answer 9

removes water from waste products as they move towards elimination. anything not absorbed is moved along through the colon as feces.

Question 10

Liver

Answer 10

produces bile which assists in breaking down of fats. detoxifying harmful substances, strong sugar and assists in production of blood products.

Question 11

gallbladder

Answer 11

serves as storage system for bile from the liver

Question 12

pancreas

Answer 12

produces hormone insulin. secretes juices that assist in breaking down proteins, carbs and fats.

Question 13

what is the significance of hormone insulin?

Answer 13

involved in regulation of sugar in the bloodstream

Question 14

Spleen

Answer 14

acts as blood filtration system, filters out old blood cells. holds a significant amount of blood the body can use in case of significant blood loss.

Question 15

Appendix

Answer 15

made up of lymphatic tissue.

Question 16

what does the integumentary system primarily consist of

Answer 16

Skin

Question 17

What does the skin do?

Answer 17

Provides protection, water balance, temperature regulation, excretion and shock absorption.

Question 18

Protection of the skin

Answer 18

keeps out microorganisms, debris and unwanted chemicals.

Question 19

water balance

Answer 19

skin helps prevent water loss and stops water from entering the body

Question 20

temperature regulation

Answer 20

blood vessels in the skin dilate to carry more blood to skin which allows heat to radiate from the body.

Question 21

when the body needs to preserve heat through temperature regulation, what do the vessels do?

Answer 21

they constrict to prevent heat loss.

Question 22

sweat glands produce sweat in order to

Answer 22

cool the body

Question 23

fat tissue acts as a

Answer 23

insulator to warm the body.

Question 24

Excretion (of the skin)

Answer 24

salts and excess water can be released through the skin

Question 25

shock absorption

Answer 25

protects underlying organs from impacts and pressures

Question 26

three major layers of skin

Answer 26

Epidermis, dermis, and subcutaneous layers

Question 27

Four layers of epidermis called strata which is everywhere except:

Answer 27

palms of hands and soles of feet.

Question 28

palms and soles have how many skin layers/

Answer 28

5

Question 29

dermis

Answer 29

rich in blood vessels nerves and many glads (sweat hair and oil glands)

Question 30

subcutaneous layers

Answer 30

fat and soft tissue. main factors of this layer are insulation and shock absorption.