HLTA02H3 Lecture Notes - Lecture 6: Smog, Pyrography, Homeostasis

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9 Dec 2017
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Ecological framework: ripple effect out and back inward, embedded, interconnected relationship between all organisms. The epidemiology triangle: host (who), agent (what), environment (where) are all linked together. The architecture of life: subatomic particles, atoms, molecules, organelles, cells, organs. Organs: anatomically distinct structures, composed of two or more tissue types, each organ performs a specific physiological functions within the body, examples: brain, stomach, liver, etc. Organ systems: one or more organs working together to perform major functions. Endocrine system: secretes hormones, regulates body temperature, delivers oxygen and nutrients to tissues, equalizes temperature in the body. Male reproductive system: produces sex hormones and. Female reproductive system: produces sex hormones and gametes, delivers gametes to female gametes, supports embryo/fetus until birth, produces milk for infant. Urinary system: processes food for use by the body, removes wastes from undigested, controls water balance in the body, removes wastes from blood and food. Lymphatic system: returns fluid to the blood, defends against pathogens excretes them.

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