ANP 1105 Study Guide - Midterm Guide: Dense Irregular Connective Tissue, Endoplasmic Reticulum, Smooth Muscle Tissue
9 Dec 2016
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Section 1: structural organization of the human body: Chemical level: atoms combine to form molecules. Cellular level: cells are made up of molecules. Tissue level: groups of similar types of cells. Organ level: contains two or more types of tissues. Organ system level: organs that work closely together. Organismal level: all organ systems working together for survival. Digestive system: breaks down food into absorbable units that enter the blood for distribution to body cells; indigestible foodstuffs are eliminated as feces. Respiratory system: keeps blood constantly supplied with oxygen and removes carbon dioxide; the gaseous exchanges occur through the walls of the air sacs of the lungs. Urinary system: eliminates nitrogenous wastes from the body; regulates water, electrolyte and acid- base balance of blood. Cardiovascular system: blood vessels transport blood, which carries oxygen, carbon dioxide, nutrients, wastes, etc. Integumentary system: forms the external body covering, and protects deeper tissues from injury.
