Human Body

Question 1

What is the role of teeth during digestion?

Answer 1

To chew food into small, manageable chunks by mechanical digestion with help from the salivary glands.

Question 2

How is saliva produces and what is its role?

Answer 2

Saliva is produced by the salivary glands and assists mechanical digestion of food using enzymes.

Question 3

What systems are involved in temperature change?

Answer 3

Excretory system, skeletal system, circulatory system and nervous system

Question 4

Function of the heart?

Answer 4

Pumps blood around the body, aids gas exchange and keeps oxygen while getting rid of co2 and other waste products.

Question 5

What waste product is produced by the skin?

Answer 5

Sweat.

Question 6

What waste product is produced by the lungs?

Answer 6

co2.

Question 7

What is the role of the hypothalamus?

Answer 7

Regulates hormones, temperature and water content within the body.

Question 8

Give an example of a reflex action?

Answer 8

Muscle contraction (when in contact with a hot object)
eye movement (blinking).

Question 9

5 components of a reflex arc?

Answer 9

Receptors, 
Sensory neuron,
Spine,
Motor neuron, 
effector.

Question 10

Difference between sensory and motor neurons?

Answer 10

Sensory neurons go towards the central nervous system while motor neurons transmit to system effectors

Question 11

Name three ways the small intestine is adapted for good nutrient absorption?

Answer 11

• Thin lining (1cm thick)
• Has an abundance of villi
• Good blood supply

Question 12

Name the 4 chambers of the heart?

Answer 12

Left + right atrium

Left + right ventricle

Question 13

What named vessel carries blood away from the heart?

Answer 13

Arteries

Question 14

What named vessel carries blood to the heart?

Answer 14

Vein