Textbook Notes (280,000)
CA (170,000)
U of C (1,000)
NURS (40)
Chapter 1

NURS 487 Chapter Notes - Chapter 1: Superior Vena Cava, Foramen, Fetal Circulation


Department
Nursing
Course Code
NURS 487
Professor
Kara Sealock
Chapter
1

This preview shows page 1. to view the full 4 pages of the document.
The Cardiovascular System- Lecture #1 and Lecture #2
Anatomy and Physiology Review for the Adult Patient
1. The Flow of Blood from systemic system into the heart then back to systemic system
PULMONARY CIRCULATION START: Right atrium Tricuspid valve Right Ventricle Pulmonary
Valve Pulmonary Trunk Pulmonary arteries (x2 L/R) Lungs Pulmonary veins (L/R) Left
atrium
THIS JOURNEY IS THE PULMONARY CIRCULATION CIRCUIT. During this part, blood starts as
deoxygenated, and then enters lungs and becomes oxygenated by mixing in with the capillaries.
Relies on right ventricle as pump
SYSTEMIC CIRUCLATION START: Left atrium Mitral valve Left ventricle Aortic valve Aorta
goes to body superior/inferior vena cava Right atrium
THIS JOURNEY IS THE SYSTEMIC CIRUCLATION CIRCUIT. Oxygenated blood gets delivered to body
systems via the aorta. Becomes deoxygenated and returns to the right atrium.
Relies on left ventricle as pump
2. Coronary Circulation
Coronary vessels come off the aorta (First branches). They go and serve the heart. The coronary
veins drain DIRECTLY into the right atrium (Deoxygenated)
Technically part of systemic circulation.
Bronchial arteries bring oxygenated blood to the lungs. Bronchial Veins bring deoxygenated back to
the venous side of the systemic circulation.
3. Structures of the heart inclusive of right side versus left side and the valves of the heart
4 Valves of the Heart
Tricuspid (R.A to L.A), Pulmonary (R.V to Pulmonary Trunk), Mitral Valve (L.A to L.V), and Aortic valve
(L.V to aorta)
4. The Action Potential of a Cardiac cell
Cardiac Myocytes- do the sueezig. Whe its elaed, poteis ae spead apat. Whe it’s
squeezed, the proteins are totally overlapped. (Trigger for squeezing is CALCIUM)
Remember- going from negative to positive is depolarization.
Potassium leaves through ion channel, if a neighboring cell depolarizes, other ions will leak in and
the cell will become more positive which causes new channels to open. (Sodium channels)
find more resources at oneclass.com
find more resources at oneclass.com
You're Reading a Preview

Unlock to view full version