Unit 12 Circulatory & Lymph

1. ARTERY VEIN CAPILLARY

• ARTERIES- carry blood Away from heart clean oxygenated blood except for

Pulmonary Artery • VEINS- carry blood towards the heart “dirty” blood with wastes except for

Pulmonary vein• CAPILARIES- exchange of blood between

arteries and veins

Arteries and Viens

2. Divisions of Aorta

• Ascending- heart wall• Aortic arch- carotids• Thoracic- lungs• Abdominal- stomach,

liver

3. PULSE

• Sites to take pulse- carotid- neck

radial- wrist brachial- elbow

Pulse can be felt as a surge of blood through an artery

Adults approx 70 /minChildren faster 100/min

4. BLOOD PRESSURE

• Blood Pressure is the force of blood against a vessel wall as the heart contracts and then relaxes. The contraction number is the SYSTOLIC. The relaxed number is the DIASTOLIC

• 120/80 is an example of a normal adult BP

5. What are the 3 Functions of the LYMPH System?

• Remove excess fluids from tissue

• Absorb fat

• Defend body from disease

VOCABULARY

• Antigen- foreign invader

• ANTIBODY- immune system produces these to fight antigens

• Myocardium- heart muscle

• Endocardium- inner layer of heart wall

• Systolic- BP reading during contraction

• Diastolic- BP reading during heart at rest

Vocab Continued

• Plaque- fatty deposit that clogs arteries

• Atheriosclerosis- disease of arteries, they harden due to plaque build up

• Hypertension- High blood pressure

THE END