Chapter 5 CNS Flashcards
(38 cards)
What is an adrenergic?
Refers to a drug stimulating a receptor for nor-epinephrine or epinephrine
What is an afferent signal?
Signal from peripheral to Brain and spinal cord.
Bottom-up signal
What is anti-adrenergic?
Drug blocking receptors for nor-epi and epi
What is anti-cholinergic?
Refers to drug blocking receptor for ACH
What is cholenergic?
Drugs that stimulate of a receptor for ACH
What is efferent?
Signals that come from brain/spinal cord to peripherals
top-down
What is norepinephrine?
Naturally occurring catecholamine neurotransmitter in the sympathetic terminal sites
What is parasympatholytic?
agents that inhibit or block effects in the parasympathetic nervous system
What is Parasympathomimetic?
Agents that cause stimulation of the parssympathetic nervous system
What is sympatholytic?
Agents that block or inhibit the effects of the sympathetic system
What is sympathomimetic?
Drugs that mimic the effects of the sympathetic system.
The sympathetic and parasympathetic system belong to what system?
The autonomic nervous system
What does parasympathetic system control?
-it control day to day bodily function.
CAUSES SLUD.
What is SLUD?
- salivation
- lacrimation
- urination
- defecation
What does stimulation of the sympathetic system do?
It is characterized as the flight or fight response.
What is the neuroeffector site?
The terminal nerve site for parasympathetic or sympathetic system.
- where ACH ends for muscarinic parasympathetic system
- epi and nor epi for sympathetic systems
What is another word for cholinergic?
Parasympathomimetic
What is another word for anti-cholinergic?
Parasympatholytic
What is another word for adrenergic?
Sympathomimetic
What is another word for anti-adrenergic?
Sympatholytic
Effects of Parasympathetic stimulation on heart
SA node and contractility
- SA NODE slowing of rate(decreased HR)
- decreased contractility (decreased atrial force)
Effects of Parasympathetic stimulation on lungs
On muscle and on mucous glands
- construction of smooth muscle
- increased mucous secretion
What is ACH?
Acetylcholine
The chemical used in nerve impulses at all pre ganglionic sites but only in post ganglionic sites of the parasympathetic system
Effects of Parasympathetic stimulation on blood vessels
Vasoconstriction,
-increased blood pressure due to loss of elasticity
