Breakdown of the Nervous System
What is the most basic structure in the nervous system?
Neuron
Afferent nerves bring messages from where to where?
All parts of the body —> Brain and spinal cord
What is a mass of nerve tissue in the body protected by the skull?
Brain
Messages transported around the body are known as what?
Electrical impulses
The two main sections of the nervous system are?
CNS and PNS
Efferent nerves bring messages from where to where?
Brain/ spinal cord to muscles or glands
On a neuron, what are the two functions of the myelin sheath?
Insulate the axon/ increase rate of transmission
Name one of the two structures of the diencephalon?
Thalamus or hypothalamus
What brings the electrical impulse towards the cell body?
Dendrites
What part of the neuron is known as the “message receiver”?
Dendrite
Name 2/3 actions the spinal cord is responsible for...
Reflex actions, sensory to the brain, motor to the muscles and glands
As part of the diencephalon, what is the function of the hypothalamus?
Controls autonomic nervous system, maintains homeostasis
What part of the brain communicates with eyes and ears?
Midbrain
Somatic Nervous system carries messages between the ___ and __.
CNS and body
How many Cranial nerve pairs are there?
12
What is the outermost layer of the meninges?
Dura Matter
What is the name of the folds in the outermost layer of cerebellum?
Convolutions
What part of the brain is used for coordination and balance?
Cerebellum
What is the space between the dendrite and axon terminal of neurons?
Synapse (synaptic gap)
What is the autonomic nervous system responsible for?
Involuntary body functions
The nervous system allows the body to adapt to _______ both inside and outside the body?
Changes
Responsible for conducting impulses between the parts of the brain...
Pons
What is the innermost layer of the meninges?
Pia mater
Name the part of the brain that connects the brain and spinal cord.
Medulla oblongata
How many spinal nerves are there?
31