Health Science

M EDICAL A SSISTANT

Standard 5 Describe the layers of and functions of blood vessels. x Arteries

Take blood away from the heart. Thicker to withstand the pressure from the heart. Take blood toward the heart. Modified with valves to prevent backflow of blood.

x x

Veins

x

x x

Capillaries

x

Gas and nutrient exchange between the blood and body cells. Single layer of cells.

x x

Standard 6 Identify the signs and symptoms of disorders of the cardiovascular system. x Myocardial infarction

Cerebrovascular accident (CVA-stroke) Hypertension Embolus/Thrombus Arteriosclerosis, Atherosclerosis Cardiac arrest Phlebitis Arrhythmia Congestive heart failure Aneurysm

x x x x x x x x x

STRAND 7 Students will describe the anatomy and physiology of the Lymphatic/Immune System. Standard 1 List the functions of the lymphatic system. Transport excess tissue fluid to the blood vessels. x Immunity x

Standard 2 Describe the functions of the major structures of the immune system. Tonsils Lymphatic tissue in the pharynx. Helps to remove pathogens from food and air. x x Lymph nodes Masses of lymphatic tissue. x Filters pathogens from lymph. x x x

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