Endocrine
Digestive
Nervous
100

What is the main function of the endocrine system?

 To produce and release hormones that regulate body functions.


100

What is the main function of the digestive system?

To break down food and absorb nutrients.

100

What is the basic unit of the nervous system?

The neuron

200

Which gland is known as the master gland

The pituitary gland.

200

Where does most nutrient absorption occur in the digestive tract?

In the small intestine

200

Which part of the brain controls balance and coordination?

The cerebellum

300

What hormone regulates blood sugar levels in the body?

Insulin

300

Which organ produces bile?

The liver

300

What connects the brain to the spinal cord?

The brainstem

400

Which two hormones are produced by the thyroid gland?

T3 (triiodothyronine) and T4 (thyroxine)

400

What enzyme in saliva helps digest carbohydrates?

Amylase

400

What part of the neuron receives information from other cells?

The dendrites.

500

What hormone is secreted by the adrenal medulla in response to stress?

Adrenaline (epinephrine)

500

What is the muscular movement that pushes food through the digestive system called?

Peristalsis

500

What is the difference between the central and peripheral nervous systems?

The CNS includes the brain and spinal cord; the PNS includes all other nerves.