Muscular & Skeletal System
How many bones are in the human body?
206
What are the three parts of the nervous system?
brain, spinal cord, and nerves
What does the digestive system do?
breakdown food for energy
What is the main organ of the circulatory system
the heart
What is the function of the respiratory system?
exchange gas (breathe)
How many muscles are in the human body?
600
What are the two nervous system categories?
the central nervous system and the peripheral nervous system
Where does digestion begin?
mouth
What is the function of the circulatory system
transport blood in the body to and from the heart
What is the main organ of the respiratory system?
lungs
What do the muscular system and skeletal system allow us to do?
move
______ is any internal or external stimulus that causes the nervous system to react
stimulus
food travels down the esophagus to the _______
stomach
What is the difference between veins and arteries
veins carry blood to the heart and arteries carry blood away from the heart
once air is breathed in, it travels down the ________ to the lungs
trachea
What are voluntary and involuntary muscles?
voluntary muscles are muscles we can control and involuntary muscles are muscles that move without our control
bundles of neurons
Which organ absorbs the nutrients from food?
small intestine
What do blood cells carry
oxygen
The trachea branches into two pipes called _________
bronchi
________ is a place where one bone connects to another bone.
joint
What are the three types of neurons?
sensory, motor, and interneurons
What does the large intestine do?
eliminate water from undigested material
The heart has two ________: the aorta and the ventricle
chambers
When you breathe in, what do the lungs do?
expand