Cardiovacular Drugs: Cardiovascular System Flashcards
What is the main function of the CV system?
Its main function is to transport oxygen and nutrients to and from body tissues
Drugs used to treat the CV system are _____ and can have ____(3)______ .
- potent
2. serious side effects
What is this describing?
- Atria contract pushing blood into ventricles
- Ventricles contract pushing blood out to body tissues
normal cardiac cycle
Cardiac muscle contraction is controlled by the movement of _______ in and out of cardiac muscle cells.
mineral ions
What is this describing?
- movement of ions across cell membrane leads to depolarization
- depolarization of cardiac muscle cells
contraction of the heart muscle
Waves of depolarization always begin at the sinoatrial (SA) node, then progressively spread to what 4 other structures? (in order)
- atria
- atrioventricular (AV) node
- Bundle of Hiss
- ventricles
What part of the CNS is this?
- Increased HR and contractility
- vasoconstriction
Sympathetic Nervous System
What part of the CNS is this?
1. Decreased HR
Parasympathetic Nervous System
What are the 2 sections of the Autonomic Nervous System?
- Sympathetic
2. Parasympathetic