Autonomic Nervous System Flashcards Preview

EKG > Autonomic Nervous System > Flashcards

Flashcards in Autonomic Nervous System Deck (14):
1

Autonomic nervous system regulates vital functions of all organs by both reflex and central nervous system control but not by...

Conscious control

2

The ANS consists of a System and an opposing System.

Sympathetic and parasympathetic

3

Each of these two systems has its own

Secretory neurotransmitter

4

Terminal ends of sympathetic nerves secrete . Which activates.

Norepinephrine, adrenergic receptors

5

The terminal parasympathetic nerve ends secrete . Which acts on.

Acetylcholine, cholinergic receptors

6

Sympathetic system activates

Beta1 receptors

7

Response if Beta 1 adrenergic receptor stimulation

Increased rate at SA node, increase rate of conduction, increased force of contractility, increase irritability

8

Parasympathetic system activation inhibits cardiac effects. Response is

Decreased SA node pacing, decreased rate, decreased force, decreased irritability

9

Sympathetic activation of alpha 1 receptors causes

Construction of arteries

10

Parasympathetic stimulation of cholinergic receptors causes

Arterial dilation

11

Severe pain or seeing ones own blood may induce

Reflex parasympathetic response that causes syncope

12

Standing causes

Sympathetic response that constricts peripheral arteries to prevent distal pooling of blood and stimulates pacing

13

An abrupt fall in blood pressure caused by failure of the compensatory mechanisms of standing

Orthostatic hypotension

14

Elderly patients that have increased pacing but no vasoconstriction this is called

Neuroscience-cardiogenic syncope