Respiratory
The main organ in the respiratory system is the
The main organ in the cardiovascular system is the
heart
bones and muscles
The main organ in the digestive system is the
The main organ in the nervous system is the
brain
People inhale _____ and exhale ______.
oxygen, carbon dioxide
The blood carries this important substance to the organs and cells
The job of bones is to
What 3 structures/substances in the mouth begin to break down food?
teeth, tongue, saliva
One way to keep the nervous system healthy is by...
exercising, eating a healthy diet, and avoiding stress.
A muscle below the lungs that helps to breathe in and out
Diaphragm
The movement of the blood around the body and through the heart is called....
This connects muscles to bones
Tendons
_____ are hard materials that form inside the gallbladder
gallstones
What is the difference between motor nerves and sensory nerves?
Motor nerves: controls muscles (brain sends messages to muscles)
Sensory nerves: eyes, ears, nose, etc send info about the world to the brain
The windpipe that carries air from the nose to the lungs is also called the
trachea
Oxygenated blood travels through tubes called ______ and deoxygenated blood returns to the heart through tubes called _______
arteries, veins
How many bones are there in the body?
206
What does the colon do?
absorbs the last of the minerals and water from food
This disease affects movement, muscle, and posture and is caused by brain damage in early life or before birth.
Cerebral palsy
The trachea breaks off into airways called _____ which have air sacs at the tips called _________ (which looks like a bunch of grapes)
bronchioles, alveoli
hypertension
This type of muscles works involuntarily and are in your liver, kidneys and lungs
What are the 3 jobs of the stomach
Stores food, breaks it down into a liquidy substance, transfers it to the small intestine
This part of the brain controls balance and coordination
cerebellum