Medication Influence by the Body to the Body Flashcards
Brain and Spinal cord
Central Nervous System (CNS)
- Part of the PNS
- Controls body’s autonomic or involuntary functions
Autonomic Nervous System
Process of chemical signalling between cells. Signal stored in nerve terminal, released from nerve ending, bound to a receptor
Neurochemical Transmission
Neurotransmitter that initiates PNS responses
Acetylcholine
- Drugs that mimic or inhibit neurotransmission
- Inhibits the release of neurotransmitters
- Block receptor sites
Altering Neurotransmission with Drugs
Neurons and effector organs activated activated by acetylcholine
Cholinergic
What doe Cholinergic drugs do to the PNS?
- Cholinergic drugs mimic PNS influence
- Anticholinergic drugs block PNS influence
Neurons and effector organs activated by norepinephrine/epinephrine
Adrenergic
What do Adrenergic Drugs do to the body?
- Adrenergic drugs cause adrenaline effects
- Anti-adrenergic drugs black the effects of adrenaline-like drugs
Adrenergic Receptor Classifications
ALPHA-ADRENERGIC
- Alpha 1: receptor stimulation causes artery and venous constriction
- Alpha 2- receptor stimulation blocks
BETA-ADRENERGIC
- Beta 1: causes increased force and contractility of heart
- Beta 2: causes bronchodilation in the lungs
Mimic sympathetic stimulation
Sympathomimetics
Drug that binds to a receptor and causes it to initiate the expected response
Agonist
Drug binds to a site but does not cause the expected response. Blocks another drug from triggering the same response
Antagonist
Binds to a receptor and causes the expected response but blocks another drug from binding to that site
Agonist-Antagonist