Unit 4: Circulatory System (Blood Vessels)

aorta

delivers oxygenated blood from the left ventricle into systemic circulation

pulmonary artery

delivers deoxygenated blood to the lungs from the right ventricle

carotid arteries

delivers oxygenated blood to brain, face, neck

• location: lateral sides of neck

subclavian arteries

deliver oxygenated blood to arms, shoulders, head and neck

• location: below the clavicle (shoulder blade)

hepatic artery

delivers oxygenated blood to liver

• branches from celiac trunk

• location: upper right abdomen

mesenteric arteries

delivers oxygenated blood to digestive system

• branches from aorta + travels to GI tract

• location: between celiac and renal arteries

renal arteries

delivers oxygenated blood to kidneys

• branches from abdominal aorta

• locatation: retroperitoneum

iliac arteries

delivers oxygenated blood to lower body (pelvic region, and legs)

• originates from aorta

• extends into legs → femoral arteries

jugular veins

removes deoxygenated blood from head, face, neck

• internal and external vein found on sides of neck

subclavian veins

transports deoxygenated blood from arms and shoulders

• location: under clavicle

pulmonary vein

transports oxygenated blood away from lungs to heart

• beings in lungs and drains into left atrium

superior vena cava

transports deoxygenated blood from heart, neck, arms, and chest into right atrium

inferior vena cava

Transports deoxygenated blood from lower body to right atrium of heart

• location: right side of vertebral column

hepatic vein

Transports deoxygenated blood away from liver

• drains into inferior vena cava

Hepatic Portal vein

transports deoxygenated blood from GI organs to liver

• liver filters + processes blood before joining inferior vena cava

renal veins

transports deoxygenated blood from kidneys medically to inferior vena cava

iliac veins

Transports deoxygenated blood from the legs and pelvis

coronary division

blood supply to heart muscles

cerebral division

blood supply to brain

hepatic portal division

venous blood from GI organs to liver

renal division

blood supply to kidneys

venous return factors

1. heart (LV momentum)

2. skeletal pump (contraction of leg muscles)

3. respiration pump (abdominopelvic/thoracic cavity pressure differential)

sphygmomanometer

blood pressure cuff

systolic pressure

force exerted by blood on walls of arteries during periods of ventricular contraction

diastolic pressure

force exerted by blood on walls of arteries during periods of ventricular relaxation

hypertension

high blood pressure

factors affection blood pressure

HR/SV, blood volume, blood viscosity, vasoconstriction/vasodilation

causes of blood pressure

diet, age, lifestyle, family history, weight, stress