Unit 30 Lymphatic System

KEY CONCEPT The respiratory and circulatory systems bring oxygen and nutrients to the cells.

[object Object],[object Object],[object Object],[object Object],[object Object],Oxygen-poor blood Oxygen-rich blood

[object Object],[object Object],[object Object],nose sinus mouth epiglottis trachea lungs

[object Object],[object Object],[object Object],[object Object],alveoli bronchiole

[object Object],[object Object],Air inhaled. Muscles contract and rib cage expands. Diaphragm flattens and moves downward. Air exhaled. Muscles and rib cage relax. Diaphragm relaxes and rises.

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],veins arteries

[object Object],[object Object],[object Object],[object Object]

KEY CONCEPT The respiratory system exchanges oxygen and carbon dioxide.

[object Object],[object Object],[object Object],[object Object],[object Object],ALVEOLI GAS EXCHANGES capillaries alveolus capillary co 2 o 2 Co 2 diffuses into alveolus. O 2 diffuses into blood.

[object Object],[object Object],midbrain pons medulla oblongata spinal chord

[object Object],[object Object],[object Object],[object Object],[object Object]

KEY CONCEPT The heart is a muscular pump that moves the blood through two pathways.

[object Object],[object Object],NORMAL HUMAN HEART

[object Object],[object Object],[object Object],aortic valve left atrium mitral valve left ventricle septum pulmonary valve right atrium tricuspid right ventricle

[object Object],[object Object],[object Object],SA node VA node

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

KEY CONCEPT The circulatory system transports materials throughout the body.

[object Object],[object Object],[object Object],[object Object],ARTERY VEIN CAPILLARIES arteriole venule endothelium connective tissue smooth muscle valve

[object Object],ARTERY VEIN CAPILLARIES arteriole endothelium connective tissue smooth muscle venule valve

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],[object Object],[object Object]

KEY CONCEPT Blood is a complex tissue that transports materials.

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],red blood cells, white blood cells, and platelets plasma

[object Object],[object Object],red blood cell platelet white blood cell

[object Object],red blood cell platelet white blood cell

[object Object],platelets fibrin red blood cell white blood cell

KEY CONCEPT The lymphatic system provides another type of circulation in the body.

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],heart lymph nodes lymph vessels

[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],tonsils thymus spleen

Unit 30 Lymphatic System

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Unit 30 Lymphatic System