It allows the exchange of gases within the cells through inhaling and exhaling.

When you inhale, your body takes in a gas called ______________________.

When you exhale, your body releases one of its wastes called __________________.

The nostrils contain plenty of tiny hairs called ____________________.

It is the body system that takes charge of this gas exchange, as this is required by the cells of the body to live.

It is a dome-shaped muscle that is located between your chest and your abdomen, contracts and stretches down.

The walls of the alveoli are covered with tiny blood vessels called _______________________.

This body system is responsible for the distribution of the nutrients, oxygen, and other substances to the cells.

This body system allows our body parts to communicate and coordinate with the brain.

The ______________________ is the division of the nervous system that controls, processes information, and directs responses from different body parts to protect and maintain the body. 

The _________________________ is the division of nervous system that contains bundles of nerves, which are made up of neurons or nerve cells.

It is a part of the brain which is sometimes called "the little brain."

It is the largest and most functional part of the brain. It is composed of the left and right hemispheres.

If the person suffers a stroke at the right side of the brain, his or her left arm or leg may be affected or paralyzed.

It is a body organ that directs all our body activities - the way we think, feel, remember, and move.

This acts as a connector between the spinal cord, the cerebrum, and the cerebellum.

Inside the spinal column is a very thick delicate bundle of nerve tissues called the ____________________________. 

This is the part of the peripheral nervous system which controls voluntary movements such as walking, jogging, and jumping.

This is the part of the peripheral nervous system which in charge of regulating involuntary functions and activities of the smooth and cardiac muscles.

These help clot the blood and close the wound.

Red blood cells are fewer in number than white blood cells.

It is a fluid that distributes the nutrients, oxygen, substances, and waste product.

This is a muscular organ that pumps blood,  it has almost the same size as your closed fist.

This is the largest artery that is connected to the heart's left ventricle.

The ________________ carry blood from the heart to the different body cells.