Contractility determinants — Flashcards

What is the effect of hypoxia (low O2) and hypercapnia (high CO2) on contractility (and SV)?_____

Activation of beta-1 adrenergic receptors results in _____ cardiac output

Cardiac contractility increases with _____ extracellular Na+

The _____ is the contractile unit of the myocardial cell

The effects of the autonomic nervous system on heart rate are called _____ effects

_____ is the ability of cardiac cells to initiate action potentials in response to inward, depolarizing current

What is the clinical significance of watershed zones in cerebral circulation?

Which basal ganglia pathway inhibits movement?

What is the phrase used to describe action potential conduction in myelinated nerves?

What is the function of myelin?