Flashcards in Introduction Part I (Exam 1) Deck (35):
Components of the central nervous system
Brain, Cerebellum, Brain Stem, Spinal Cord
Components of the peripheral nervous system.
All the components outside the cranium and spinal cord.
PNS is divided into which two systems?
Somatic and Autonomic
Somatic Nervous System is _______.
Autonomic Nervous System is _______.
Fight or Flight
Nerve cells which make up brain, brain stem, and spinal cord?
Non-neuronal supporting cells that provide services for neurons.
Three some types of neurons?
Afferent, Interneurons, and Efferent.
Sensory input from the periphery of the body and transporting it into the CNS.
Connect neurons to other neurons. Function is to organize information received.
Transmit information to the extremities to signal muscles to produce movement.
Stores K+ and neurotransmitters. Stores metabolites and forms scar or plaques after injury to neural tissue.
Form myelin in CNS.
Remove cellular debris when injury or infection is present.
Most basic functional unit of a nerve (also called a nerve cell).
Impulses passed from dendrite to ____.
Special areas on cell bodies, which give rise to axons.
Substance composed of Schwann cells which are wrapped concentrically around the axon in a jelly roll fashion.
Outermost layer is connective tissue called _____.
In both CNS and PNS high area of myelinated axons make up the areas of ______.
What is neurorehabilitation?
Impairments and functional limitations that have developed from a combination of the pathology or disease of the nervous system.
The myelin is interrupted at regular intervals.
Nodes of Ranvier
Is the jumping of the action potential from node to node.
Space between the axon of one neuron and the dendrite of the next neuron is called ________.
Connection between neurons that allow different parts of the nervous system to communicate with and influence each other.
Chemicals that transmit information across the synapse.
Acetylcholine (muscles), Glutamine, Dopamine, Norepinephrine
High concentration of myelinated fibers.
______ matter is found in the brain and spinal cord.
High concentration of unmyelinated structures.
_____ matter composes the periphery of cerebral hemispheres and central portion of spinal cord.