Exploring Human Body Systems

What is the main function of the heart?

• To digest food

• To pump blood

• To filter air

• To control body temperature

How many chambers does the human heart have?

• Two

• Four

• Eight

• Six

What part of the brain is responsible for muscle control?

• Cerebrum

• Amygdala

• Cerebellum

• Brain stem

Which layer of the skin provides a barrier against microbes?

• Dermis

• Epidermis

• Hypodermis

• Melanin layer

What is the primary function of the hypodermis?

• To sense touch

• To filter sunlight

• To produce sweat

• To store fat

What does the urinary system primarily remove from the body?

• Excess water and toxins

• Undigested food

• Solid waste

• Carbon dioxide

What can long-term retention of urine lead to?

• Risk of infection

• Muscle growth

• Improved digestion

• Increased energy

What part of the ear helps to convert sound energy into signals for the brain?

• Pinna

• Ossicles

• Eardrum

• Cochlea

What is the role of the cochlea in hearing?

• It converts vibrations into nerve signals

• It vibrates to create sound

• It sends signals to the brain

• It collects sound waves

Which animal uses its jaw bones to perceive sound?

• Frog

• Mosquito

• Snake

• Fish