General nervous system
The name given to nerve cells
What is neurons
When the brain does not have time to decide how to respond, it is called _________________________
what is a reflex
This is the largest part of your brain
What is the cerebrum
The minimal level of a stimulus that is required to activate a neuron
What is the threshold
Two divisions of the autonomic nervous system
What is the sympathetic and the parasympathetic
The brain, the ____________and the nerves make up the Nervous system
what is the spinal cord
The brain is made up of __________________, ___________________, and _____________________
What is the cerebrum, cerebellum and the medulla
This part of the brain controls balance, movement and coordination
What is cerebellum
The location at which a neuron can transfer an impulse to another cell
What is a synapse
Categories of sensory receptors are pain receptors, mechanoreceptors, photoreceptors and _____________________.
What is thermoreceptors
The nerves carry _______________signals to the brain and spinal cord.
What is electrical
This tell the brain or spinal cord what is happening to your body
What is a stimulus
Also known as the brain stem
What is medulla
Chemicals used by a neuron to transmit an impulse across a synapse to another cell
What are neurotransmitters
The lens focuses light onto the ___________________
What is the retina
The fibers in the Nervous System are covered with a substance called _________________.
What is myelin.
This is how the brain or spinal cord reacts to a stimulus.
What is a response
Carry impulses from the environment or from other neurons toward the cell body.
What are dendrites
receives messages from all of the sensory receptors throughout the body and then relays the information to the proper region of the cerebrum for further processing
What is the thalamus
There are two types of light sensitive photoreceptors cells in the retina called ________________ and _____________
What is rods and cones
It is the __________that decides what the stimulus is and how to respond to it.
What is the brain
This controls things like music, color, drawing and shapes
What is the right side of the brain
The long fiber that carries impulses away from the cell body
What is the axon
This system regulates the activities that are under conscious control such as wiggling you toes.
What is the somatic nervous system
The human ear has two sensory functions: One is for hearing and the other is ______________________________________
What is detecting potential changes associated with movement.