SCIE 4.2 CIRCULATORY SYSTEM

Where does this pulse come from?

• The heart

• The lungs

• The brain

• The liver

Identify the main parts of the human circulatory system from the options below.

• Heart, blood, and blood vessels

• Lungs, liver, and kidneys

• Brain, spinal cord, and nerves

• Stomach, intestines, and pancreas

The key components and functions of the circulatory system include:

• Heart, blood, and blood vessels that transport nutrients, oxygen, and waste.

• Lungs, trachea, and bronchi that help in breathing.

• Stomach, intestines, and liver that digest food.

• Bones, muscles, and joints that support movement.

What is another name for the human circulatory system?

• Respiratory system

• Cardiovascular system

• Digestive system

• Nervous system

The main function of the circulatory system is to transport _______, oxygen, and nutrients to the body.

• blood

• carbon dioxide

• hormones

• waste

Which of the following is NOT a main part of the circulatory system?

• Heart

• Blood vessels

• Blood

• Lungs

The circulatory system helps regulate the body's _______.

• temperature

• weight

• height

• vision

Which of the following is a function of the circulatory system?

• Carrying hormones to cells

• Producing sound

• Digesting food

• Controlling movement

What is the major organ of the circulatory system?

• The heart

• The lungs

• The liver

• The kidney

What is the main function of the heart?

• To work as a pump to move the blood around the body.

• To help in digestion of food.

• To control the movement of bones.

• To produce hormones in the body.