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Pharmacologytammie 4
Central and Peripheral Nervous system.
Question | Answer |
---|---|
Andrenergic | Drug that stimulates receptors for epinephrine or epinephrine. |
Parasympathetic system | Controls SLUD |
Sympathetic | fight or flight system |
What are the 2 major control systems in the body | 1. Nervous 2. Endocrine |
Function of sensory(afferent) neurons | detect change in light, heat, pressure, pain in CNS |
Somatic(motor)neurons | responsible for voluntary muscle movements |
ANS | Involuntary, unconscious control mechanism of body |
What is the Neurotransmitter at the Parasympathetic end | Acetycholine (strong bronchoconstrictor) |
Neurotransmitter at the sympathetic end | norepinephrine/epinephrine |
What terminates acetylcholine & norepinephrine | cholinesterase & catechol-0-methyltransferase( COMT) and MAO - monoamine oxidase respectively. |
Effects of parasympathetic system on the cardiopulmonary | 1. Decreased heart rate 2. Low BP 3. Bronchoconstriction 4. Mucus secretion |
Muscarinic | Receptors at parasympathetic end. M3 is on airway smooth muscle mediating bronchoconstriction. |
Atropine | Typical parasympatholytic or anticholinergic. Blocks parasympathetic site |
Sympathetic effects on the cardiopulmonary system | 1. Increased heart rate 2. Increase BP 3. Bronchodilation 4. Increased secretion from mucus glands in the airway. |
Sympathetic end receptors | Alpha - vasoconstriction B1 - Inc heart rate B2 - Smooth muscle relaxation |
drugs refer to page 95 | pg 95 |
What is the neurotransmitter at the sympathetic end | Epinephrine |
Sympatholytics(Adrenergic blocking agents) | - inhibits the SNS - |