Nervous System
What is the central nervous system made up of?
Brain and spinal cord
What are neurons?
Skeletal, Smooth, Cardiac
What is it called when a muscle condenses in order to move the body?
Contraction
What is the peripheral nervous system?
all the nerves outside of the brain and spinal cord
How do neurons communicate?
Electric signals
Name at least two smooth muscles.
Esophagus, lungs, stomach, intestines
Why do skeletal muscles appear stripped?
All the different muscle fibers
How much does a normal brain weigh?
3 pounds
Name at least two elements of the structure of a neuron
Dendrites, cell body, axon, axon terminal, synapse, mylien sheath
What are the functions of the muscular system?
Movement, stability/posture, control of body systems
What is it called when a joint angle gets bigger?
Extension
What region of the brain is responsible for complex thought?
cerebrum
What does the brain stem control?
involuntary actions like sneezing and eyes adjusting to light
Give an example of cardiac muscle
Muscles in the back of the body are called what?
Posterior muscles
What is the cerebellum responsible for?
Balance
What is the left side of the cerebrum know for?
Logic and math
What types of muscles are voluntary?
Skeletal and some smooth
How many muscles in the human body?
640ish