Human Body Systems: Skeletal, Muscular, Digestive, and Excretory

Question 1

What are the three layers of bone (outside-inside)

Answer 1

Periosteum, Compact Bone, Spongy Bone, and Bone Marrow.

Question 2

Which part of the bone is strongest?

Answer 2

Compact bone

Question 3

What are the 5 functions of the skeletal system?

Answer 3

1. Provide support to the body
2. Protect Internal Organs
3. Work with muscular system to move body
4. Produce red blood cells
5. Store calcium, fat, and other minerals.

Question 4

What is the periosteum?

Answer 4

Outer bone layer

Question 5

What is the bone marrow?

Answer 5

innermost bone layer that produces red blood cells

Question 6

What is a ligament?

Answer 6

Connects bone to bone

Question 7

What is a joint?

Answer 7

Where 2 or more bones meet

Question 8

What is a tendon?

Answer 8

Connects bone to muscle

Question 9

What is cartilage?

Answer 9

Between 2 bones so they don’t rub against each other

Question 10

What is the difference between involuntary and voluntary muscle?

Answer 10

Involuntary occurs without thinking while you have to think do control voluntary muscles

Question 11

What is the main function of the digestive system?

Answer 11

To breakdown food

Question 12

Name in order the organs that food passes through as it moves down the digestive tract

Answer 12

1. Mouth/Nose
2. Esophagus
3. Stomach
4. Small Intestine
5. Large Intestine
6. Rectum
7. Anus

Question 13

Explain why your stomach lining is not digested by the stomach acid

Answer 13

There is a layer of mucus protecting it

Question 14

What substance is made the liver and stored in the gallbladder?

Answer 14

Bile

Question 15

What is the function of the substance, bile?

Answer 15

To break down food even more

Question 16

What do the pancreas, liver, and gallbladder have in common?

Answer 16

They are accessory organs

Question 17

What is chyme and where is it produced?

Answer 17

Watery soup. In the stomach.

Question 18

What is the difference between mechanical and chemical digestion?

Answer 18

Chemical takes down things little by little while mechanical mashes it.

Question 19

What is the main function of the excretory system?

Answer 19

To get rid of waste

Question 20

What are the 4 ways in which wastes are excreted from our bodies?

Answer 20

1. Sweating
2. Getting rid of urine
3. Getting rid of Carbon dioxide
4. Getting rid of feces

Question 21

What is the function of the small intestine?

Answer 21

To absorb nutrients

Question 22

What is the function of the large intestine?

Answer 22

To digest or absorb water, and to absorb nutrients of foods not able to absorb in small intestine

Question 23

If the small intestine is longer than the large intestine, why is the name not switched?

Answer 23

Because the large intestine is wider than the small intestine

Question 24

What is the function of the urinary system?

Answer 24

To remove waste from our bodies

Question 25

What does the kidney do?

Answer 25

Filters blood to remove urea (a waste)

Question 26

What does the ureter do?

Answer 26

Brings waste to the bladder

Question 27

What does the bladder do?

Answer 27

stores urine

Question 28

What is the urethra?

Answer 28

Where urea leaves the body