Digestive
Partly digested liquid food that passes from the stomach to the small intestine.
chyme
name the main organ of the respiratory system.
lungs
What is the main organ of the circulatory system?
heart
What system does the endocrine work closely with?
The Nervous System.
How many bones are in the adult human body?
206
Where does digestion start?
In the mouth.
What are microscopic air sacs in the lungs called?
Alveolus or Alveoli
How many chambers are in the heart?
4
What are hormones?
Hormones are chemical messengers.
How many bones are babies born with?
300
Name three types of hormones.
aldosterone, insulin, and growth hormone.
A tube that branches of the bronchus.
bronchioles
Blood vessels that carry blood away from the heart are called.
arteries
What is the function of the excretory system?
to get rid of waste in the form lof urine.
Name at least two functions of bones.
support, protect organs, allow movement, where blood cells and minerals are formed.
What type of muscle does the digestive system have?
Smooth
What is the tube the carries air to the bronchi?
trachea
what type of muscle is the heart made of?
cardiac
Kidneys
a ligament connects what together?
bone to bone.