[Exam 4] Chapter 65: Assessent of Neurologic Function (Page 1946-1962) Flashcards
Function of the Nervous System?
To control all motor, sensory, autonomic, cognitive, and behavioral activites
What does the CNS include?
Brain and spinal cord
What does the Peripheral Nervous System include?
Cranial and Spinal Nerves
Autonomic (Sympathetic and Parasympathetic Systems) and Somatic Systems
What is the basic functional unit in the nervous system?
Neurons
What are neurons composed of?
Dendrites, cell body, and axon.
What do Myelin Sheaths do?
That nerve impulses transfer quickly and do not get off of their path
What do dendrites do?
Structures that receive electrochemical messages
What is an axon?
Long projection that carries electrical impulses away from the cell body
What do Synaptic Terminals do?
They are terminals that have neurotransmitters present .
What is the Autonomic System?
It is involuntary, it is automatic. Body automatically does it.
What is the Autonomic System broken down into?
Sympathetic and Parasympathetic Systems
What does the Sympathetic system do? (simple)
Speeds up nerve impulses. S&S is a good way to remember this
What does the Parasympathetic system do? (simple)
Slows down nerve impulses. (This is Pokey)
What is more strongly controlled by the parasympathetic system?
GI System
What is more strongly controlled by the sympathetic system?
Fight or flight response
What does the Somatic System control?
Voluntarily movements. Helps you move, or do things that require nerve impulses that we control by thinking about
What nerves controlled by Somatic System?
Afferent and Efferent Nerves of Skeletal System
Functions of Autonomic System? (4)
Regulates activities of internal organs to maintain homeostasis
Regulated by centers in the spinal cord, brain stem and hypothalamus
Sympathetic
Parasympathetic
What does the Sympathetic System control ? (3)
Flight or Fight Response
Norepinepherine
Stimulation causes dilated blood vessels, bronchioles, and pupils and sweating
What does the Parasympathetic System control? (2)
Controls visceral organs (GI and Bladder)
Stimulation causes a reaction of visceral organs (peristalsis and bladder constriction)