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Flashcards in CPR Autonomics Deck (9)
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1

What is the equation for BP?

BP = HR x SV x TPR

2

What is a varicosity?

Synapse between postganglionic fiber and target tissue

3

What NTs are released at varicosities?

NE or ACh

4

What parasympathetic receptor type is found on the SA node of the heart? Sympathetic?

Muscarinic cholinergic receptors (parasympathetic)
Beta 1 adrenergic receptors (sympathetic)

5

Which cranial nerves are parasympathetic?

IIi (oculomotor), VII (facial), IX (glossopharyngeal), X (vagus)

6

What part of the brain is strongly involved in coordinating the autonomic responses?

Hypothalamus

7

What is SV?

Stroke volume - amount of blood ejected from the heart with each beat

8

What is TPR?

Total peripheral resistance - resistance of peripheral vessels

9

How does sympathetic nervous system increase BP?

BP = HR x SV x TPR
HR: B1 NE receptors increase speed of contraction
SV: B1 NE receptors increase Ca2+ influx for strength of contraction
TPR: a1 NE receptors to constrict vessels and increase resistance