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Anatomy structure of human body
Physiology study of processes, how and why they work, function
Pathophysiology 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 ( take in food, oxygen, produce heat & energy)
Cell membrane outer protective covering semi permeable- selective in allowing substances in and out of cell
Cytoplasm surrounds nucleus gel like fluid inside cell contains water, salts, protien site of all chemical reactions in cell (Organelle- structures that help cell function)
Nucleus mass in cytoplasm "brain" of cell controls cell activity important in cell division
Nucleolus "protien factory" inside nucleus important in cell reproduction has ribosomes (RNA and Protien), reproduction
chromatin inside nucleus contains DNA and protien condenses to form chromosomes human cell has 46 chromosomes and 23 pairs(genes)
centrosomes inside cytoplasm, near nucleus contain 2 centrioles (seperate in cell division and form fibers that attach to 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 cell
Endoplasmic Reticulum fine network of tubular structures in the cytoplasm transports materials in and out of nucleus aids in synthesis and storage of protien
lysosome contain enzymes that digest and destroy old cells and bacteria important to immune system
pinocytic vesicle pocket like folds in cell membrane allow molecules to enter cell
Mitosis asexual cell reproduction used by most cells
Meiosis process by which sex cells reproduce
tissues water and dissolved subs. joined together for common purpose
edema swelling
dehydration inadequate amt. of fluid in tissues
Epithetial tissue covers surface of body skin forms lining of intestines, respiratory, circulatory and urinary form glands in body that reproduce
connective tissue supports organs and other body parts
soft connective Adipose= fatty tissue insulates, padding and energy Fibrous= ligaments/tendons- hold body structures together
Hard connective Cartilage- tough elastic material, btwn bones and at ends of long bones (shock absorber, flexible) found in nose, ears, and larynx (gives shape/form) bone-osseous tissue , forms rigid body structure
liquid connective vascular tissue Blood and lymph circulates O2 and CO2 also transports tissue fluid to circulatory sys.
Nerve Tissue made of neurons controls and coordinates bodys actions by transmitting messages through body Nerves- brain, spinal cord= made of nerve tissue
muscle tissue produces power and movement
3 types of muscle Skeletal= attached to bone (movement) Cardiac= heart (causes heart to beat) visceral= (smooth) found in walls of respiratory tract, digestive tract, blood vessels and urinary tract
organs 2 or more tissues joined together for a specific purpose
system organs and other body parts joioned together for a particular function * systems work together to form the human bodyyy
NERVE control and communicate
EPITHELIUM secrete and protect
MUSCLE move and protect
CONNECTIVE support and connnect
Created by: sc3839