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Cellllllllls

QuestionAnswer
Anatomy structure of body
Physiology study of processes, how and why they work
Pathophysicology study of how diseases occur and body's response
Cells basic unit of all living things microscopic vary in shape and size perform different functions carry on all functions of life
Cell membrane outer protective covering semi permeable: selective in allowing substances in and out of the cell
Cytoplasm surrounds the nucleus gel-like fluid inside cell contains water, salts,and protein site of all chemical reactions in cell
Nucleus mass in cytoplasm "brain" of cell controls cell activity important in cell division
Nucleolous "protein factory" inside nucleus important in cell reproduction contains ribosomes: RNA and protein
Chromatin inside the nucleus contain DNA and protein condenses to form chromosomes human cell has 46 chromosomes, 23 pairs: genes
Centrosome inside cytoplasm near nucleus contain 2 centrioles/separate in cell division and form fivers that attach the chromosomes
Mitochondria "furnace" or "powerhouse" rod shaped organelles located throughout cytoplasm
Golgi Apparatus stack of membrane layers in cytoplasm produces, stores, packages secretions for discharge from the cell
Endoplasmic Reticulum fine network of tubular structures in cytoplasm transports materials in and out of nucleus aids in synthesis/storage of protein
Mitosis A-sexual cell reproduction used by most cells some continuously (skin, blood), every few years (muscles), don't reproduce (brain cells)
Meiosis process by which sex cells reproduce decreases to 23 chromosomes so that new cell has 23 pairs
Tissues cells of same type joined together for a common purpose made of water and dissolved materials
Types of tissues epithelial (skin) connective (soft, hard, liquid) nerve (neurons) muscle (skeletal, cardiac, visceral
Epithelial function: covers surface of body forms lining of intestines, respiratory, circulatory, and urinary tract forms glands
Connective function: supports organs and other parts
Connective types Soft *adipose-fatty tissue: insulates *fibrous-ligaments/tendons: hold structures together
Connective types Hard *cartilage-tough elastic material: located b/w bones, @ end of long bones, ears, and nose *bone-osseous tissue: forms rigid body structure
Connective types Liquid *lymph-transports tissue fluid *blood-circulates oxygen and carbon dioxide
Nerve *made of cells "neurons" *controls & coordinates body activities *nerves, brain, & spinal cord are composed of nerve tissue
Muscle *produces power 3 main types *skeletal- attaches to bone *cardiac- heart *visceral (smooth)- found in walls of respiratory, digestive, blood vessels, and urinary tract
Created by: lindseyhdavis
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