5 senses
What organ do we use for sight?
the eye
What is a nerve cell called?
a neuron
What are the two parts of the central nervous system?
The brain and the spinal cord
What is the main bone in your head?
the skull
What is an example of a fixed joint?
Where are the receptors for the sense of hearing?
in the cochlea
What is the electrical signal called that moves through neurons?
impulses
What part of the brain is responsible for coordination and movement?
the cerebellum
What type of joint is the knee?
a flexible joint
What are the name of the 2 main muscles in your arms?
Biceps and Triceps
Where are the receptors located for feeling?
in the dermis
What are the 3 types of neurons called?
sensory neurons, interneurons, and motor neurons
What part of the brain is in charge of sleeping and involuntary actions?
the brain stem
What is a joint?
where two bones are connected
What is an example of a semi-flexible joint?
the spine
What is the stimulus for the sense of smell?
chemicals in the air
What are dendrites?
they are the receptors in our sense organs
What part of the central nervous system is responsible for reflexes?
the spinal cord
What are the bones that protect your heart and lungs?
the ribs
What are the three types of muscles?
skeletal, smooth, and cardiac
What is the nerve called for the sense of taste?
gustatory nerve
What do motor neurons do?
they carry signals from the central nervous system to muscles (effectors)
What type of neurons do the brain send responses to after they receive impulses?
Motor neurons
What bone connects the hip to the knee?
the femur
When a muscle receives a stimulus it does what?
contracts or relaxes