Skeletal System
How many bones are in the human body?
206
What specific muscle is responsible for the voluntary movement of the body?
Skeletal muscle
What is the basic fundamental cell in the nervous system?
A neuron
Which organ pumps blood throughout the body?
The heart (cardiac)
What organs are mainly responsible for exchanging oxygen and carbon dioxide?
The lungs.
Bones and joints work together to allow movement during exercise, how is this done?
Bones provide support, and joints allow bones to move relative to each other.
How is movement produced in a joint by skeletal muscles?
Muscles contraction and pull on the bones through tendons, causing movement at the joint.
How does the nervous system help your body quickly respond?
It receives sensory information, processes it, and sends the signal to the muscles to produce movement.
Why does heart rate rise during exercise?
To pump more blood and deliver oxygen and nutrients to the muscles.
Why does breathing rate increase during exercise?
Muscles need more oxygen and produce more carbon dioxide, so breathing increases to exchange these gases.