The Nervous System, The Nervous System
Terms in this set (70)
A ________ is a small space across which an impulse travels to move from one neuron to another.
The ________ nervous system is made up of the brain and spinal cord.
The ________ nervous system is made up of all the nerves outside the brain and spinal cord.
What is the branch part of the neuron that receives messages and sends them to the cell body?
What is the branch part of the neuron that transports messages away from the cell body?
A ________ is made up of a cell body, dendrite, and axon.
When a movement causes the spinal cord to interpret an impulse from the brain from sensory receptors this movement is called a ________.
Which part of the body is made up of bundles of neurons that carry impulses from all parts of the body to the brain and from the brain to all parts of the body?
The regulation of steady, life-maintaining conditions inside an organisms is called ________.
The senses act as the body's alert system, reacting to ________ and transmitting impulses to the brain.
A ________ is any change inside or outside your body that brings about a response in a living organism.
Your nervous system is made up of ________ which are made up of a cell body and branches of dendrites and axons.
This is the part of the neuron that receives messages and send them to the cell body.
This is the part of the neuron that carries messages away from the cell body.
Messages carried by nerve cells are called ________.
You have ________ kinds of nerve cells.
Nerve cells that receive information and send impulses to the brain or spinal cord are called ________ neurons.
Nerve cells that relay impulses from sensory nerve cells to motor nerve cells are called ________.
Nerve cells that conduct impulses from the brain to muscles and glands throughout your body are called ________ neurons.
Nerve cells do not ________ each other, yet still pass impulses to each other.
Nerve cells do not touch each other, yet still pass ________ to each other.
A synapse is a ________ between nerve cells.
A ________ is a space between nerve cells.
When an impulse reaches the end of an axon, the axon releases a ________.
When an impulse reaches the end of an axon, the axon releases a chemical that flows across the synapse and relays the impulse to the ________ of the next neuron.
The ________ coordinates all of your body activities.
The ________ nervous system connects your brain and spinal cord to the rest of your body.
The peripheral nervous system has ________ systems.
In the peripheral nervous system the ________ system controls voluntary actions.
In the peripheral nervous system the ________ system controls involuntary actions.
Any ________ to the brain or spinal cord can be serious.
Injury to the spine can result in loss of muscle movement called ________.
A ________ is an involuntary, autonomic response to a stimulus controlled by the spinal cord.
For your sense of touch sensory receptors are found in ________ ________ and skin.
For your sense of touch sensory receptors are found in internal organs and ________. These sensory receptors can pick up changes in touch, pressure, pain, and temperature.
In this picture of neuron structure what is letter "A" pointing to?
In this picture of neuron structure what is letter "B" pointing to?
In this picture of neuron structure what is letter "C" pointing to?
In this picture of neuron structure what is letter "D" pointing to?
In this picture of neuron structure what is letter "E" pointing to?
Process of the movement of ions in a neuron in response to a given stimulus
Abundant, star-shaped cells that brace neurons and control the brain's chemicals
Autonomic Nervous System
Subdivision of the motor division that is involuntary (i.e. cardiac muscle)
Nerve processes that conduct impulses away from the cell body
A neuron that has only two projections (one axon/one dendrite) from the cell body
Central Nervous System
The main division of the nervous system containing the brain and spinal cord
The ability to transmit an impulse
Nueron processes that conduct impulses towards the cell body
Nervous system support cells that line the cavities of the brain and spinal cord
Name given to the collection of ell bodies and unmyelinated fibers
To process and interpret sensory input and decide if action is needed
The ability to respond to a stimuli
Motor (efferent) Division
Division of the PNS that carries impulses/information away from the CNS
Multiple Sclerosis (MS)
Disease tat breaks down the myelin sheath and eventually leads to death
A neuron that has many/multiple extensions from the cell body
Whitish, fatty material that covers axons and helps to insulate the nerve
The master controlling and communicating system of the body
Another name for nerve cells
Nodes of Ranvier
The gaps in the myelin sheath along an axon
Nervous system support cells that produce myelin sheaths in the CNS
Peripheral Nervous System
The main division of the nervous system containing all nerves not in the brain or spinal cord
Rapid, predictable, and involuntary response to a stimulus
Nervous system support cells that protect the cell bodies of nerves
Nervous system support cells that produce the myelin sheath in the PNS
Sensory (afferent) Division
Division of the PNS that carries impulses/information to the CNS
Somatic Nervous System
Subdivision of the motor division that is voluntary (i.e. skeletal muscles)
A junction between nerves
Name given to the gap in between neurons
Neuron that has a short, single projection from the cell body
Name given to the collection of cell bodies and myelinated fibers