Diabolical Digestion
Our Crazy Circulation
That Nutty Nervous System
Radical Respiration
Can our bodies really do that?
100

The changing of food to a form usable by the body.

Digestion

100

These tough blood vessels take blood from, or away from, the heart.

Arteries

100

This pathway is so important, that if it is cut or severed it can lead to paralysis.

Spinal Cord

100

This series of 12 bones expands when you inhale and protects the lungs and heart.

Rib Cage

100

Your heart normally beats this many times per minute.

Between 80 to 90 times per minute.

200

This organ in a mother filters and controls food molecules received by a baby in the womb.

Placenta

200

These hard-working cells in the blood contain hemoglobin.

Red Corpuscles (Red Blood Cells)

200

We call them nerve cells, but they have a scientific name too. What is the scientific name?

Neuron

200

Every time you breathe out, this gas is released into the air.

Carbon Dioxide

200

These types of actions, such as the beating of your heart or breathing, are automatic and controlled by your brain.

Involuntary Actions

300

These bean-shaped organs lie in the back of the abdominal cavity, and turn wastes into urine which empties into the bladder.

Kidneys

300

When food molecules combine with oxygen, this happens.

Oxidation

300

Nerve cells "speak" to each other through these connections, or spaces where they do not actually touch.

Synapses

300

Also called the windpipe, this tube starts at the pharynx and brings oxygen to the lungs.

Trachea

300

A pre-born baby is surrounded by this protective liquid and can actually drink it!

Amniotic Fluid

400

This is the organ that contains villi that absorb nutrients from the food we eat.

Small Intestine

400

The body makes these types of cells to fight disease.

White Corpuscles (White Blood Cells)

400

Name the nerve impulses that travel to the body parts.

Motor Impulses

400

This muscle is the floor of the rib cage and moves down when we exhale.

Diaphragm

400

A baby is how old when his/her heart is able to start pumping its own blood?

21 days

500

The name for the passageway that takes the food we ingest through our bodies. 

Alimentary Canal

500

The largest blood vessel, it takes blood directly from the heart and eventually branches out into smaller and smaller blood vessels.

Aorta

500

Why is this system mentioned here? Because it works very closely with the Nervous System. Name these glands.

Endocrine

500

The windpipe divides into two tubes which feed the lungs and are filled with cilia and mucous. Name these two tubes.

Bronchial Tubes

500

This structure in cells controls the number of times a cell can divide and is linked to our longevity.

Telomere