blood/heart lab Hematocrit

Erythrocytes = red blood cells (RBC)

Leukocytes

white blood cells (WBC)

Granulocytes

Neutrophils, Eosinophils, and Basophils - with prominent stained granules

Neutrophils

Eosinophils

Basophils

Agranulocytes

Lymphocytes, and Monocytes - blue cytoplasm without prominent granules

Lymphocytes

Monocytes

Deoxygenated blood returns from body from the superior vena cava into the right atrium

1

Blood from right atrium goes thru the right AV valve into the right ventricle

2

Right ventricle contraction forces the pulmonary valve open

3

Blood goes thru pulmonary valve then to pulmonary trunk

4

Both R/L Pulmonary arteries unloads CO2 and loads O2 near lungs

5

oxygenated blood comes back from lungs to left atrium thru both R/L pulmonary viens

6

Blood from left atrium goes thru the left AV valve into the left ventricle

7

Left ventricle contraction forces the aortic valve open

8

Blood flows thru the aortic valve into the ascending aorta

9

Blood in aorta goes is distributed to every organ, unloading O2 and loading CO2

10

SA node fires

1 - heart contraction

SA node signal spreads thru Artirial myocardial cells

2 - heart contraction

SA node fires

3 - heart contraction

Signal spreads down AV bundle

4 - heart contraction

ventricular myocardium

5 - heart contraction