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lecture_notes_1 - Lecture 1: Principles of Systemic...

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Lecture 1: Principles of Systemic Physiology Reading: chapter 1 Levels of Organization (Figure 1-1) Cell (Figure 2-1) Functions: obtain nutrients and oxygen metabolism synthesis exchange of materials intracellular transport reproduction Tissue (aggregate of cells and extracellular material) 4 primary types Muscle (contraction) skeletal cardiac smooth Nervous (transmission of signals) central peripheral Epithelial (exchange of materials) Figure 1-2 epithelial sheets (form boundaries) glands (secretion of synthesized materials) Exocrine (external secretion) Endocrine (internal secretion) Connective (structural support) tendons bones blood Organ (two or more primary tissues organized to perform a function) e.g. Stomach: composed of all 4 tissue types Epithelial epithelial sheet - barrier to digestive juices exocrine gland - secretes digestive juices endocrine gland - regulates exocrine secretion Muscle smooth muscle - stomach wall Nervous peripheral nerves - regulate contraction
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lecture_notes_1 - Lecture 1: Principles of Systemic...

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