human tissues 1

human tissues 1

1. four types of tissues

   • muscular tissue
     • Skeletal Muscle
       • pulls on bones allowing body movement; voluntary maintains posture location, skeletal system
     • Cardiac Muscle
       • forms wall of heart, pumps blood through blood vessels; involuntary location, heart and blood vessels
     • Smooth Muscle
       • found in walls of hollow organs stomach and bladder function, Housekeeping of the body
   • connective tissue
     • types of connective tissue
       • Areolar Connective Tissue
         • Location: subcutaneous layer deep to skin, superficial part of dermis of skin, mucous membranes, blood vessels Function: strength, elasticity, support
       • Adipose Tissue
         • Location: subcutaneous layer deep to skin, heart, and kidneys -Function: reduces heat loss through skin, preserves energy, supports and protects
       • Reticular Connective Tissue
         • Location: stroma of liver, spleen, lympnodes, basement membrane - Function: forms stroma of organs, binds together smooth muscle tissue cells
       • Dense Regular Connective Tissue
         • Location: forms tendons, ligaments, aponeuroses - Function: strong attachment btw various structures
       • Dense Irregular Tissue
         • Location: Fasciae, deeper part of dermis of skin, periosteum of bone, heart valves - Function: Strength
       • Elastic Connective Tissue.
         • Location: lung tissue, walls of elastic arteries, trachea, bronchial tubes, vocal cords - Function: stretching
       • compact bone
         • Location: makes up various parts of bones - Function: support, protection, storage, houses blood forming tissue, serves as levers that act together with muscle tissue to enable movement
       • Elastic Cartilage
         • Location: Epiglottis, auricle, auditory tubes - Function: support and maintains shape
       • Hyaline Cartilage
         • Location: ends of long bones, ribs, nose, larynx - Function: smooth surfaces, flexibility, support
       • Fibrocartilage
         • Location: pubic symphysis, intervertabral discs, menisci of knee, tendons - Function: support and rigidity
       • Blood
         • Location: within blood vessels, chambers of heart, arteries, veins - Function: red BC's transport Oxygen and CO2, white BC's carry on phagocytosis and are related to allergic reactions and immunce system responses.
       • images http://www.histologyguide.com/slidebox/03-connective-tissue.html
   • nervous tissue
     • function conduct nerve impulses
       • location, brain, spinal cord, and nerves
   • epithelial tissue
     • general characteristics
       • avascular
       • covers and lines the body
     • types of epithelial tissues
       • Simple squamous epithelia
       • Simple squamous epithelia
       • Simple columnar epithelia
       • Stratified squamous epithelia
       • Stratified cuboidal epithelia
       • Stratified columnar epithelia
       • pseudostrarted columnar
       • transitional epithilia
     • function
       • rapid diffusion and filtration(simple squamous)
       • secretion and absorption(simple cuboidal)
       • simple columnar - secretion and absprtion
       • pseudostratified columnar - secretion and propulsion of mucus
       • stratified squamous - protection
       • transitional - expansion and contraction
     • location
       • pseudostrarted columnar- the lining of respiratory passages
       • stratified squamous epithelium - superficial layer of skin and lining of oral cavity, vagina, and anal canal
       • stratified cuboidal epithelium- linings of ducts of mammary glands, sweat, glands, salivary glands, and pancreas
       • stratified columnar- part of the male urethra and ling of the large ducts of excretory glands
       • transitional epithelium- inner lining of urinary bladder and lining of ureters and part of urethra
       • glandular epithilium- slivery glands, sweat glands, endocrine glands
     • histology
       • http://www.histologyguide.com/slidebox/02-epithelium.html

2. definition of tissues

   • any of the distinct types of material of which animals or plants are made, consisting of specialized cells and their products.

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