Tissues Flashcards 1) What is a TISSUE? 2) What happens during the process of cell differentiation? 3) What does the presence of large numbers of microvilli on the exposed surfaces of epithelial cells indicate? 4) What are the two types of tissues? 5) What are the two categories of connective tissue? 6) What are the 5 types of Proper connective tissue? 7) What are the 5 types of Special connective tissue? 8) What is a sheet of cells that separate one region from another? 9) What supplies oxygen and nutrients to the epithelium? 10) What are the three functions of epithelia? 11) What sits on top of connective tissue and is connected to it by the basement membrane? 12) What is the basement membrane made of? 13) What is the ONLY function of the basement membrane? A group of cells, usually similar, which share a particular function. Each organ is made up of tissues. Each cell develops a characteristic set of structural features, and each cell has to contribute one piece toward the overall function of the organism, so that all the vital functions can be covered. During differentiation, cells in nearby locations become able to work together. After differentiation, cells do not change their function throughout their life cycle. That this is the area where absorption and secretion take place. These cells are transportation specialists. They are probably located along portions of the digestive and urinary tracts. 1) Epithelium 2) Connective Tissue 1) Fibrous (proper) connective tissue 2) Special connective tissue 1) Adipose 2) Reticular 3) Loose 4) Dense regular 5) Dense irregular 1) Cartilage 2) Bone 3) Blood 4) Muscle 5) Nerves Epithelium Blood vessels in the connective tissue 1) To separate one region from the other; e.g. skin, stomach lining, blood vessel lining, intestine, heart. 2) Forms exocrine glands 3) The epithelial cells are the type of tissue that protects the underlying structures Epithelia The basement membrane is made of protein fibers To attach the epithelium to the connective tissue beneath it 1 Tissues Flashcards 14) Where do epithelia get its oxygen and nutrients from? What are the upper and lower surfaces of epithelium called? From the blood vessels in the connective tissue beneath the basement membrane Basal Side (faces the basement membrane) Apical side (faces the lumen or space) 15) What are the two different types of epithelium? 16) What are the 4 types of simple epithelium? 1) Simple Epithelium 2) Stratified Epithelium 1) Simple squamous 2) Simple cuboidal 3) Simple columnar 4) Pseudostratified columnar 1) Stratified squamous 2) Stratified cuboidal 3) Stratified columnar 4) Transitional Simple squamous 17) What are the 4 types of stratified epithelium? 18) Which type of epithelium is the thinnest? 19) What epithelium only has one layer? 20) Which epithelium has flat cells that allow for diffusion of materials between cells? Where is it found? 21) Which type of epithelium is cube shaped and allows for a lot of material going from one compartment to another and also has plenty of room for organelles? Where is it found? 22) What type of epithelium has one layer of rectangular shaped cells? 23) Which type of epithelium is found in the trachea? What special cell is associated with them, and what does it produce? 24) Where is pseudostratified epithelium found? 25) What type of epithelium always has cilia on their apical surfaces? Where is it found? 26) What type of epithelium has more than one cell layer? Simple Epithelium Simple Squamous Epithelium Found in the lungs and kidney glomerulus Simple Cuboidal Epithelium Found in the kidney tubules Simple columnar Pseudo-Stratified Epithelium Associated with GOBLET CELLS, which produce mucus Trachea Pseudo-Stratified Epithelium Found in the trachea. Stratified Epithelium 2 Tissues Flashcards 27) In stratified epithelium, if the basal cells are one shape and the apical cells are another shape, which layer is the epithelium named after? 28) What epithelium is found in the regions of the body where lots of abrasions or wear and tear occur? 29) What are the two types of Stratified Squamous Epithelium? 30) Which Stratified Squamous Epithelium is waterproof and found in the thick, dry areas of the skin? 31) Which Stratified Squamous Epithelium is moist skin (like what is found lining the mouth and esophagus)? 32) What type of epithelium usually consists of two layers that are square shaped and there is almost no diffusion between them, and is usually found in tubes associated with glands? Where is it found? 33) What type of epithelium is usually two layers, is rectangular, and allows for no diffusion between them? It is named by the apical layer. For example, if the basal layer is cuboidal shaped, but the apical layer is squamous shaped, it would be named stratified squamous epithelium. Stratified Squamous Epithelium 34) What type of epithelium is relatively rare, providing protection along portions of the pharynx, urethra, and anus? 35) What epithelium can stretch and change shape? Where is it found? Stratified Columnar Epithelium 36) What type of tissue lines the urinary bladder? 37) What are the 2 types of connective tissues? 38) What are the functions of connective tissues? Transitional epithelium 39) What are the five types of proper (fibrous) connective tissue? Keratinized Stratified Squamous Epithelium Non-Keratinized Stratified Squamous Epithelium Keratinized Stratified Squamous Epithelium Non-Keratinized Stratified Squamous Epithelium Stratified Cuboidal Epithelium-sweat gland Stratified Columnar Epithelium- Transitional epithelium- Urinary Bladder Fibrous (proper) Connective tissue Special connective tissue 1) Defend the body from invasion by microorganisms 2) Provide protection for delicate organs 3) Establish a structural framework for the body 1) Adipose connective tissue 2) Reticular (lymph nodes) 3) Loose connective tissue 4) Dense Irregular connective tissue 5) Dense Regular connective tissue 3 Tissues Flashcards 40) What type of tissue has lots of adipocytes? What is stored inside? 41) What tissue are lymph nodes? 42) What is the least specialized connective tissue? 43) What type of tissue’s main cell type is Fibroblast and is common in areas just deep to epithelium? 44) How is areolar (loose) connective tissue formed? 45) Skeletal muscle is bound together by what type of tissue? 46) How is dense connective tissue formed? 47) What are the main characteristics of Dense Irregular connective tissue? 48) What are the main characteristics of Dense Regular connective tissue and an example of where it can be found? 49) What tissue type are tendons? 50) What are five three types of special connective tissue? 51) What is the main cell type of cartilage? 52) What type of tissues extracellular matrix is dense collagen, almost solid, very rigid, and avascular? 53) What are the three types of cartilage, and where is each one found? Which is most common? 54) What type of tissues’ extracellular matrix is solid and full of minerals? What is the main cell type? 55) What type of tissues’ extracellular matrix is plasma? Adipose Tissue Fat is stored inside Reticular Areolar Loose connective tissue (Areolar) formed by the differentiation of embryonic connective tissue Areolar formed by the differentiation of embryonic connective tissue Has lots of collagen fibers Fibers have irregular position; no pattern Extremely strong in all directions Found in areas of body where strength is needed (joint capsules and deeper layer of dermis) Has lots of collagen fibers that have a pattern and run in same direction. Stronger than Irregular, but in one direction. Ligaments and tendons (they are not muscle tissue) Dense regular connective tissue (they are not muscle tissue!) 1. Cartilage 2. Bone 3. Blood 4. Muscles 5. Nervous tissue Chondrocytes Cartilage 1. Hyaline Cartilage (joints; most common) 2. Elastic Cartilage (ear) 3. Fibrocartilage (intervertebral discs) Bone The main cell type is Osteocyte Blood 4 Tissues Flashcards What is the main cell type of blood? 56) What are the three types of membranes? 57) What membranes lines the inside of fluid-filled joints and has cellular layers that are incomplete, with gaps between adjacent cells? 58) What membranes are covered in epithelium and are involved in absorption and secretion? 59) What membranes cover the heart, lungs, and line the abdominal cavity? 60) What is the major function of a serous membrane? 61) What is inflammation of the serous membrane of the heart called? 62) What is inflammation of the serous membrane of the lungs called? 63) What is inflammation of the serous membrane of the abdominal cavity called? 64) Besides shape, what is another way to classify epithelium? 65) What are the two types of moist epithelium? 66) What type of substance does mucosa epithelium secrete? What would be an example of a mucosal epithelium? 67) What type of substance does serosa epithelium secrete? Where is it found? 68) What is an example of dry epithelium? 69) Is collagen a cell or just a protein fiber? Where is it found? What cell makes collagen? 70) What is connective tissue made of? 71) What type of cartilage has the most collagen? 72) What type of cartilage is best at resisting compression forces? 73) What type of connective tissue has the most collagen? The main cell type is an Erythrocyte Synovial, mucous, serous Synovial Mucous Serous To produce tiny amounts of transudate on their opposing surfaces to reduce friction. Pericarditis Pleuritis Peritonitis By whether it is moist or dry Mucosa and Serosa Mucus Example: pseudo-stratified epithelium Watery secretions, like sweat Found in parts of the body that need lubrication Keratinized stratified squamous epithelium Collagen is a type of protein fiber. It is found in all connective tissues (other than blood). Collagen is made from fibroblasts. Collagen. Fibrocartilage Fibrocartilage Dense regular CT 5 Tissues Flashcards 74) Where is most of the body’s collagen fibers found? 75) Does collagen regenerate well? Why? 76) What gives connective tissue an elastic consistency and does not interfere with diffusion of materials from area to another? 77) What is the main function of collagen? 78) What are the two types of glands? Dermis Collagen has very little blood supply so it does not regenerate well Collagen To provide support and elasticity for connective tissues. Exocrine Glands Endocrine Glands Exocrine Gland 79) What type of gland secretes substances into a duct which empties out onto the skin or into the lumen of a body tube? 80) What type of gland secretes its Endocrine Glands product (hormones) into blood? 81) What are the four types of exocrine 1) Serous Glands glands based on the type of 2) Mucous Glands secretion? 3) Mixed Glands (serous + mucous) 4) Oil Glands 82) What do serous glands secrete? Sweat 83) What do mucous glands secrete? Mucous 84) What do oil glands secrete? Waxy and oily substances 85) What do mixed glands secrete? Watery substances plus mucous (salivary glands) 86) Which glands secrete sweat? Serous and Mixed glands 87) Is a goblet cell a unicellular or Goblet cells are unicellular glands multicellular gland? 88) What are the three types of glands 1) Merocrine Glands classified by the method of 2) Apocrine Glands secretion? 3) Holocrine Glands 89) What glands produce a secretion by Merocrine Glands the process called exocytosis? 90) What are the functions of Merocrine They secrete sweat, which functions for glands? a) Thermoregulation b) Inhibiting bacteria on the skin c) Excretion of water, electrolytes, drugs They do not function as a lubricant for the skin. 91) What is exocytosis? Exocytosis is when a secretion vesicle moves to the plasma membrane, where it fuses and the material is released outside the cell. 92) What gland accumulates material in Apocrine Glands the apical section, the top if the cell breaks off, and the material is released? 6 Tissues Flashcards 93) What are two examples of an apocrine gland? 94) What gland secretes a protein? 95) What are the two types of sweat glands? 96) Which gland will break off entirely with all the contents inside? What gland would be an example? 97) Which glands are found in the axilla and pubic regions? 98) Which two types of glands are found all over the body? 99) Name the two types of glands classified by their structure (What they look like) 100) Where is a goblet cell found? 101) What are the two types of multicellular glands? Mammary glands and glands associated with pubic and axillary hairs. Apocrine glands Merocrine (Eccrine) and apocrine Holocrine Glands Example: sebaceous glands Apocrine Sebaceous and Merocrine (Eccrine) Unicellular Glands and Multicellular Glands In the Respiratory Tract ; trachea Multicellular Glands: alveolar or tubular; simple (no branches) or compound (has branches) Simple alveolar Simple tubular (sweat glands) Compound alveolar (mammary) Compound tubular ALVEOLAR TUBULAR 102) Picture of the different types of Multicellular Glands 7