Tissues Chapter 5 http://biol



Tissues Chapter 5 - a group or mass of similar cells working together to perform ________________________There are 4 major types of tissue: 1. Epithelial 2. Connective 3. Muscle 4. Nervous1. Epithelial TissueGeneral Characteristics:? -Found throughout the body, covers all body surfaces both inside and out.? - Main ________________________________ tissue.? - Attached to underlying connective tissue at the _____________________________.? - Usually has no vascular tissue - blood supply? - Cells reproduce rapidly results in ______________________________? Functions: Protection, secretion, absorption, excretion, sensory perception Categorized based on the ________________ of the cells and the ________________of cells.Simple =Squamous = Stratified = Cuboidal = Columnar = *Why is being burned so dangerous? A. SIMPLE SQUAMOUS Form: flat and thin, single layer Function: ________________________________Found in air sacs of lungs, walls of capillaries.All epithelial tissue has a layer at the bottom called the: _________________________B. SIMPLE CUBOIDAL - single layer, cube-shaped cells. Function: Secretion and _______________________________________ Found: Lining of kidney tubules, ducts of glands, covering surface of ovariesC. SIMPLE COLUMNAR - single layer, long cells: Function: Secretion and absorptionFound in the lining of __________________________ and uterus- contains scattered ____________________ to secrete mucus- __________________________ increase surface area*Label the image → D. STRATIFIED SQUAMOUS - multi-layered, squamous cellsFunctions in protection. Found lining body cavities like the __________________________________*Where have we seen these before?* Why are tattoos permanent? * What is a suture? *According to the Fitzpatrick scale, how many skin types are there? ____ Which type are you?HHMI How We Get Our Skin Color (Interactive) 1. What are the three main layers of skin?2. What are the two main cells found in the epidermis? 3. What is melanin?4. How does melanin protect cells?5. How does sunlight cause tanning?E. PSEUDOSTRATIFIED COLUMNAR - appear "stratified" but really a single layer with nuclei at various levels giving the appearance of layered cells. -- Can have ______________________ (tiny, hair-like projections that sweeping materials) ---and goblet cells, which secrete _____________________________- Function: secretion and _______________________________________- Location: lining air passages like the trachea, tubes of the reproductive system*What happens if the cilia of cells do not work properly?F. TRANSITIONAL EPITHELIUM - thick, layered cuboidal cells. "Stretchable" tissue, also forms barrier to block diffusion. Found: _______________________________ G. Glandular Epithelium - Cells specialized to ________________________________They make up the body’s _____________________________Exocrine Glands (Examples): Endocrine Glands (Examples):2. Connective Tissue-Most abundant tissue in your body; Binds structures together-Provides support, protection, framework, fills space, stores fat, produces blood cells, fights infection-Composed of scattered ____________________________ with an intercellular ___________________-Made up of a ground substance and fibers -Most have a good _________________________________-Cells can reproduce-Three common types of connective tissue cells: 1. __________________________________ 2. __________________________________ 3. __________________________________Main types of fibers:-collagenous fibers: Strong, flexible, but not very elastic Found in: _____________________- elastic fibers - Not as strong, but very elastic Found in: ________________________CATEGORIES OF CONNECTIVE TISSUEA. LOOSE C.T. or AREOLAR TISSUE - binds skin to underlying organs and organs to organs Forms thin ____________________________ throughout the bodyB. ADIPOSE TISSUE - aka FAT, beneath skin, Function: Protective cushion, insulation to preserve body heat, stores________________C. FIBROUS Connective Tissue. - thick collagenous fibers and fine network of elastic fibers. Few cells, poor blood supply, thus slow healingTendons = _________________________________________Ligaments = _______________________________________D. CARTILAGE (all cartilage cells are called _________________________)HYALINE CARTILAGE Location: ______________________________ELASTIC CARTILAGE Location: ______________________________FIBROCARTILAGE – Tough, shock absorbing. Location: ________________________________E. BONE TISSUE - ____________________tissue. Rigid due to mineral salts.? F. BLOOD TISSUE - circulates throughout the body3. Muscle Tissue Skeletal - skeletal muscles - voluntary (striated) Smooth - in hollow organs, stomach - involuntary Cardiac - wall of the heart4. Nerve Tissue - Found in brain, spinal cord, nerves Sketch: Neuron Neurons - transmit signals | Neuroglia - protection, support ................
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