1st 6 Body System Test Review

Question 1

List the main functions of the skeletal system.

Answer 1

1) Provides shape and support to the body.
2) Protects internal organs.
3) Movement
4) Manufacture blood cells in bone marrow.
5) Provides storage of calcium and phosphorous.

Question 2

Osteociasts

Answer 2

Destroys Bone

Question 3

Osteoblasts

Answer 3

Build Bone

Question 4

Osteocytes

Answer 4

Holds bone together

Question 5

Lining Cells

Answer 5

Protection of bone

Question 6

What are the two main minerals that are stored in you bones?`

Answer 6

Phosphorous and Calcium

Question 7

List the main functions of the muscular system.

Answer 7

1) Movement
2) Protection
3) Stability
4) Maintaining body temperature

Question 8

List the 3 parts of the integumentary system.

Answer 8

1) Hair
2) Nail
3) Skin

Question 9

How does the skeletal system help maintain homeostasis?

Answer 9

Bones supply calcium to your nerves, muscles, and heart, a healthy skeletal system is important.

Question 10

How does the muscular system help maintain homeostasis?

Answer 10

Muscle contractions convert chemical energy to thermal energy to keep the body warm. Cardiac muscles pump blood that contains oxygen to keep the body alive.

Question 11

How does the integumentary system work to help maintain homeostasis?

Answer 11

Skin regulates body temperature and reacts to stimuli.

Question 12

Explain the difference between red and yellow marrow.

Answer 12

Yellow bone marrow stores fat cells, but red bone marrow creates red and white blood cells.

Question 13

What is the function of the respiratory system?

Answer 13

Exchange oxygen and carbon dioxide with the external environment and your internal environment.

Question 14

List the path air takes as it enters and flows through the body.

Answer 14

Air enters the nose and mouth, this helps warm air. It next goes to the Pharynx and the Larynx. It then goes to the Trachea where it carries air from Larynx to the lungs. It goes to the Bronchi/ Bronchial tubes where two tubes split off from the Trachea. It then goes to the Alveoli, tiny sacks in lungs.

Question 15

Explain the role the diaphragm plays in breathing.

Answer 15

Movement of the diaphragm muscle creates changes in air pressure that moves in and out of the lungs. The pressure difference causes you to inhale and exhale.

Question 16

What is the function of the digestive system?

Answer 16

Breaks food down into smaller molecules that are absorbed into the blood stream.

Question 17

Describe the path food takes once it enters your body.

Answer 17

Food enters the mouth and becomes bolus. It goes down the esophagus using peristalsis. It goes into the stomach where it becomes chyme. It enters the small intestine where nutrients is absorbed. It finally goes to the large intestine where water is absorbed and exits the body.

Question 18

List and explain the accessory organs in your digestive system.

Answer 18

1) Tongue- pushes food down
2) Teeth- chews food (Mechanical Digestion)
3) Salivary Glands- located in the mouth and produces saliva
4) Liver- produce bile
5) Gallbladder- a muscular sac attached to the liver that secrets bile and stores until needed for digestion
6) Pancreas- produce digestive enzymes and helps regulate blood stream.

Question 19

How does villi help with digestion?

Answer 19

Nutrients moves from the small intestine into the blood through small blood vessels in the villi.

Question 20

List all the places peristalsis takes place.

Answer 20

Esophagus, Stomach, Small & Large Intestine.

Question 21

What is the function of the urinary system?

Answer 21

1) Collects waste produced by cells and removes them from the body
2) Maintains homeostasis
3) Works with other excretory organs.

Question 22

What 4 body systems make up the excretory system and how do each of them remove waste?

Answer 22

1)The digested system collects and removes undigested solid from the food you eat.
2) The urinary system processes, transports, collects, and removes liquid waste from the body.
3) The respiratory system removes carbon dioxide and water vapor from the body.
4) The integumentary system, which includes skin, secretes excess salt and water through sweat glands.

Question 23

What 3 structures are part of your respiratory and digestive systems?

Answer 23

Mouth, Pharynx, and Epiglottis.