zoeleow5's 2015-09-11 01:41
Epithelial tissue Sheets of cells that cover exterior surfaces of the body; Lines internal cavities and passageways; provides body protection from physical, chemical and biological damage.
Connective tissue Binds cells and organs together; Provides protection for organs and defends against microbial invasion; Stores energy reserves such as lipids; Dispersed in a matrix.
Muscle tissue Has Skeletal, cardiac and smooth types; Responds to stimulation and contracts to provide movement.
Nervous tissue Sends and receives electrochemical signals that provide the body with information.
Neurons allows propagation of electrochemical signals, in the form of nerve impulses, that communicate between different regions of the body.
Neuroglia Supports neutron cells, provides protection and nutrient supply.
Avascular Lack of blood vessels; Capillaries do not reside within epithelial cell tissues.
Sensory Endings of neutrons present within epithelial cell tissues; Perceives external stimulus
Gliding surface layer Slough off and glide in order to replace dead cells; Allows epithelial cells to maintain closed barrier to external environment.
Transitional Multi-layered epithelia are able to stretch
Tight Barrier Held together more tightly than other cells; Aids cells in withstanding mechanical stress.
Simple Squamous Epithelia looks like thin scales; nucleus is flat, horizontal and elliptical; present where there is rapid passage of chemical compounds because of thinness; eg. alveoli
Stratified Squamous Epithelia Top layer covered with dead cells, filled with keratin; Found in lining of mouth cavity.
Simple Cuboidal Epithelia Box shape; Secretes and absorbs molecules; Found in lining of kidney tubules and ducts of glands.
Stratified Cuboidal Epithelia Found in certain glands and ducts; not usually in Human body.
Simple Columnar Epithelia Column-shaped and elongated nucleus located in basal ends of cells; Absorbs and secretes molecules; Found in lining of digestive system and female reproductive tract.
Stratified Columnar Epithelia Found in certain glands and ducts; Not usually in Human body.
Endocrine glands Ductless gland that releases secretions into surrounding tissues; eg. anterior pituitary, thymus.
Exocrine glands Secretions leave directly/indirectly to external environment through a duct; Secretes mucous, sweat, saliva, breast milk.
Pseudostratified Columnar Epithelia Single layer of irregularly shaped and differently sized columnar cells; Are heterogeneous epithelia as it includes additional types of cells in them; Found in respiratory tract.
Hyaline connective tissue Provides support with flexibility
Fibrocartilage connective tissue Provides compressibility and absorbs pressure
Elastic cartilage Provides firm but elastic support
Fluid connective tissue Lymph and blood; Various specialised cells circulate in watery fluid containing salts, nutrients, and dissolved proteins.
Connective tissue proper Loose and dense connective tissue; Adipose, areolar, and reticular; Regular and irregular elastic.
Supporting connective tissue Bone and cartilage; In hyaline, fibrocartilage and elastic cartilage.
Epidermis Does not contain blood vessels and nerves; Responsible for skin cell renewal, is the barrier between internal structures and external environment, prevents microorganisms, water and other substances from entering body, protects skin from UV and other pollutants.
Dermis Has thin network of capillaries, and contains nerves; Provides skin with extensibility, strength firmness and elasticity; Helps diffuse oxygen and nutrients to outer layer of skin; Has antibodies to fight microbes and hazardous substances; Initiates inflammatory process during skin injury by increasing blood to aid immune cells navigate.
Serous membrane Thin membrane that surrounds organs; attaches organ to body; has a parietal and visceral surface
Mucous membrane Lines passageways, lubricates, protects, and aids in absorption/secretion.
Cutaneous membrane Is the skin; Waterproof, thick, and dry.
Synovial Joints; produces synovial fluid for lubrication.
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