Cells & Body Systems Unit Test

Question 1

Parts Of the Nervous System

Answer 1

Central Nerves = Brain and Spinal cord

Peripheral Nerves = Spinal cord and Nerves outside of the brain.

Question 2

What is the Nervous System responsible for

Answer 2

All Body Functions

Question 3

Journey Of the Digestive System

Answer 3

• Mouth uses teeth and saliva to break food into small chunks.

-Esophagus carries food to the stomach

-Stomach mixes the food with gastric/stomach acid.

-Small intestine absorbs nutrients

-Large intestine dissolves the food into feces/stool/poop.

-Rectum stores the stool for a temporary amount of time

-Anus releases the stool from the body.

Question 4

What is the Digestive System?

Answer 4

When your body absorbs nutrients from food, creating waste.

Question 5

What is the Circulatory system and what does it do?

Answer 5

Blood vessels carry blood towards and away from the heart, delivering blood to tissues and organs.

Question 6

Journey Of the Circulatory System

Answer 6

• Heart pumps blood to the body

-Arteries carry blood out of the heart to organs and tissues.

-Veins carry blood from the tissues and organs back to the heart

Question 7

What does the Respiratory system do?

Answer 7

Inhaling fills the lungs with oxygen, and exhaling releases carbon dioxide.

Question 8

8 Parts of the Respiratory System

Answer 8

-Sinus
-Pharynx
-Larynx - voice box
-Trachea - windpipe
-Bronchi
-Lung
-Diaphram - Separates the chest from the abdominals.

Question 9

What is the Cell Organization Of the Body:

Answer 9

Cell –> Tissue –> Organ –> Body System

Cells create tissues, tissues create organs, many organs create organ systems.

Question 10

Sensory And Motor Neurons:

Answer 10

Sensory neurons sense feelings, such as cold wind, while the motor neurons perform reactions/actions based on the sensory neurons. Ex. If the sensory neurons detect it is cold, the motor neurons will cause the body to shiver in response.

Question 11

4 Main Nutrients in Food

Answer 11

Carbs: Main source of energy

Fats: Cushions vital organs, essential to a diet.

Proteins: Essential for repair of muscle tissue.

Minerals & Vitamins: Supports the immune system.

Question 12

Journey Of Respiration

Answer 12

• Air goes down the mouth and nose, down the throat, and through the trachea and bronchi to the lungs.