Nervous System 1
The primary cell that builds all the structures of the nervous system
Name all structures of the entire nervous sytem
Brain, Spinal cord, and Nerves
what is the central nervous system made of?
brain and spinal cord
What does the CNS stand for?
The central nervous system
What does PNS stand for?
The peripheral nervous system
what is the peripheral nervous system made of?
nerves that branch off from the spinal cord.
What does the Somatic divison of the nervous system conrol?
Voluntary movement of the body
The division of your peripheral nervous system that is made up of the nerves that control involuntary body responses and functions.
Autonomic nervous sysytem
Name the tiiiiiiny empty space between dendrites of one neuron and axon terminals of the connecting neuron
Synapse
Name the function of the neurotransmsitter/hormone Adrenaline
Stress response, fight or flight, excites nervous system, fear response
Two subdivisions of the Autonomic Nervous System-and the function of each
Sympathetic "Fight of Flight" Parasympathetic Division "rest and digest"
Name THREE Functional parts of a neuron
1- cell body (soma) 2- dendrites 3- axon 4- myelin sheaths 5- axon terminals 6- nucleus
What structure functions like a highway and transmits nerve impulses from the body to the brain and from the brain to the body?
The spinal cord
What does a dendrite do?
Receives neurotransmitters from another neuron's axon terminal
This division of the PNS controls involuntary actions.
Autonomic
The central nervous system is made of these organs
brain and spinal cord
What does an axon terminal hold inside small vessicles?
neurotransmitters
List 2 roles of the cerebrum
1. Higher order thinking
2. Emotions
3. Voluntary muscle movement
4. Senses
A sensory neuron connected to touch receptors in the skin sends nerve impulses to...
The central nervous system.
Neurons taking information back to your body are called what?
motor neurons/Efferent neurons
name 3 differences between the endocrine system and nervous system
the endocrine system: travels slower, in blood, wide spread and long lasting effects.
nervous system: travels fast, through nerves, targeted, quick/short effects
Explain what happens to an action potential when it reaches the axon terminal
List two functions of the myelin sheath?
insulates axon, protects and speeds up nervous impulse
What is the difference between the afferent and efferent divisions of the NS?
Afferent (sensory) carries signals TO the CNS; efferent (motor) carries signals FROM the CNS to effectors.
Put these in order: effector, receptor, motor neuron, sensory neuron, response.
receptor → sensory neuron → motor neuron → effector → response