Transcript Circulatory System Cardiovascular.Lymphatic

We have two Circulatory Systems
1. Cardiovascular System 2. Lymphatic System
Our Heart is like 2 Hearts in One
Right Heart
Left Heart
•Right Atrium
•Left Atrium
•Right Ventricle
•Left Ventricle
•Receives
Deoxygenated blood
from Body
•Pumps Oxygenated
blood to Body
The Cardiovascular System
Closed System (self sealing = clotting)
Blood is enclosed in blood vessels
carries O2 and nutrient to cells,
CO2 and wastes from cells, hormones, antibodies
Structures
•Heart
•Arteries
•Capillaries
•Veins
Pulmonary Circulation
Right Ventricle through lungs &
back to Left Atrium
Systemic Circulation
Left
Ventricle to all 10 Systems &
back to Right Atrium.
Coronary Circulation to heart
GI & Hepatic Portal to
abdominal & digestive organs
Renal Circulation to kidneys
Heart Conduction
Pacemaker of the heart 
Artificial Pacemaker
Involuntary, striated, branched
Comparison of Artery & Vein
Thick smooth muscle wall
Under high pressure & deep…why?
Carry blood away from heart
O2 (except pulmonary arteries…why?)
Thin smooth muscle wall
Less pressure & more supericial…why?
Carry blood to heart
DeO2 (except pulmonary veins…why?)
Veins carry blood to the heart
Capillaries Connect Artery to Vein
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Walls of Arteries &
Veins are thick
Blood is moving fast
So, where does blood
do all its Work?
At the capillaries 
Why?
Blood Pressure forces some of the Plasma
minus large blood proteins to leak out of
Capillary (Filtration) into the Tissues
Exchange of ALL Nutrients, Gases, &
Wastes occurs here
Too much fluid = Edema
Lymphatic System
•Some Plasma (minus blood proteins filters (“leaks”) out of
capillaries into Tissues
•Now called Tissue (Extracellular) Fluid, much will drawn back into
capillaries by Serum Albumin
•More Tissue Fluid will be drawn into Lymphatic vessels, now called
Lymph
•Lymph will pass through Lymph Nodes where it will be purified by
WBCs
•Lymph is emptied into Subclavian Veins where it is now part of the
Plasma