• Most cases of shock call for the administration of extra

fluids and emergency medications like epinephrine to

help restore perfusion to the tissues.

• If the body is not able to do this

quickly, with or without

outside help, organs will fail

(kidney failure, liver failure,

coma) and damage may

become permanent.

Shock And Homeostasis

Circulatory Routes• Blood vessels are organized into circulatory

routes that carry blood to specific parts of the body.• The pulmonary circulation leaves the right heart to

allow blood to be re-oxygenated and to off-load CO2.• The systemic circulation leaves the left side of the

heart to supply the coronary, cerebral, renal, digestive and hepatic circulations (among others). The bronchial circulation provides oxygenated blood to the lungs, not the pulmonary circulation, which oxygenates blood!

Systemic Circulation - Arteries• Aorta (one)

• Brachiocephalic (one)

• Common Carotid

• External Carotid

• Internal Carotid

• Subclavian

• Axillary

• Brachial

• Radial

• Ulnar

• Bronchial (usually 3)

• Renal

• Iliac (common, internal,

external)

• Femoral

• Popliteal

Systemic Circulation - Arteries

Systemic Circulation - Arteries

Systemic Circulation - Arteries

Systemic Circulation - Arteries

Systemic Circulation - Veins• Vena Cava

• Brachiocephalic (two)

• External Jugular

• Internal Jugular

• Subclavian

• Axillary

• Brachial

• Median Cubital

• Iliac (common,

internal, external)

• Femoral

• Popliteal

• Saphenous

• Hepatic portal

Systemic Circulation - Veins

Systemic Circulation - Veins

Systemic Circulation - Veins