Body Systems
Gets rid of wastes
excretory system
Main function of digestive system
to break down food
What are the two parts of the circulatory system?
heart and blood vessels
When you inhale, you take in _____________.
Oxygen
How many bones does a newborn baby have?
How many bones does an adult have?
Over 300
206
gets oxygen and releases carbon dioxide
respiratory system
How long does it take to digest food?
24-33 hours
What are two jobs done by the circulatory system?
to carry food and oxygen to cells and carry waste away from cells
When you exhale, you get rid of _________ ___________.
Carbon dioxide
Name three places where cartilage can be found in your body.
ears, tip of nose, between bones
carries materials all over the body
circulatory system
How long are the small intestines?
4-7 meters
List 3 facts about the heart.
main organ of circulatory system
size of your fist
most powerful organ
made of cardiac muscle
located between lungs in chest
The three wastes carried by your blood are:
heat
water
salt
There are over _______ muscles in the body.
600
controls fast activities
nervous system
What carries food molecules throughout the body?
blood vessels
What are 3 functions of blood?
deliver oxygen
carry waste to kidneys
fights infection and heals wounds
Which parts of the skin have the most receptor cells?
fingertips
lips
Muscles work in two ways:
push
pull
controls slow activities
endocrine system
Name 3 parts of the digestive system
teeth/mouth, esophagus, stomach, small intestines, large intestines, kidney, liver, pancreas
What is the strongest muscle in the body?
the heart
Name the two parts of the nervous system.
brain
spinal cord/nerves
Name three kinds of muscles.
skeletal
smooth
cardiac