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Connective Tissue
Chpt 3, Lab 2
| Question | Answer |
|---|---|
| What is Histology? | the study of Tissues |
| What is Tissue? | A collection of specialized cells and cell products that preform a limited function. Collection of specialized Cells |
| tissue combines to make_____ | Organs |
| Organs are made up of______ | Tissue |
| Connective tissue comes from______ | MESENCHYME CELLS (EMBRYOTIC CELLS) |
| Mesenchyne Cells are______ | one of three embryotic cells |
| Embryotic cells become_______(4) | either, Blood, Fat, tissue or bone |
| what does connective tissue do? | connects body parts |
| where is CT found? | throughout the internal body. |
| Name the 6 functions of Connective tissue | Establish the STRUCTUAL FRAMEWORK of the body.TRANSPORTS fluid and dissolved materials.PROTECTS organs.SUPPORT, surround, and connect other tissues.Stores energy.Defend the body from microorganisms |
| main components of CT | 1. Matrix2. Specialized cells |
| the matrixs consists of (2)_____ | ground substance (Jello-like fluid) and fibers (protiens) |
| Jello-like fliud and fibers that surrounds the cells is called_____ | Matrix |
| the fibers in the matrix are composed of____ | protien |
| fruit in jello is like | fibers suspended in ground substance |
| connective tissue fibers are | Collegen Reticular Elastin Fibrin |
| Collegen Fibers | protein, thick, ropelike, bendable NON-elastic or NON stretchy.Collagen is the most common and strongest fiber. |
| strongest and most abundand fiber in connective tissue | Collegen |
| CT fibers are made of _____ | Protien |
| Reticular Fibers | protein, thin, branching, non-elastic fibers that form a network/meshwork |
| Thick, ROPE-LIKE, NON Elastic/ NON stretchy fibers | Collegen |
| thin, branching network of fibers | reticular |
| protein, stretchy and elastic, returns to original length after being stretched. Amt. decreases with age, usually replaced by collagen | Elastin |
| Elastin fibers | elastic, decreases with time, stretchy |
| Elastin fibers are replaced with_____ | Collegen |
| Bendable, Not stretchy fibers | Collegen |
| mesh-like, network of fibers | Reticular |
| Fibrin fibers are | protein, unique soluble fibers that are found only in plasma and become solid during blood clotting |
| fibers found only in plasma | Fibrin |
| fibers that become solid in blood clotting | Fibrin |
| water soluble fiber | Fibrin |
| examples of collegen fiber | tendons and ligaments |
| reticular fibers are abundantin | the sleen or liver |
| Cells Found in Connective Tissue | Fibroblasts, White Blood Cells,Adipocytes, mesenchymal, Mast, and melanocytes |
| produce and secrete fibers of matrix, sometimes differentiate to become cartilage or bone | fibroblasts |
| white blood cell that eats foreign material that enters the tissue | macrophages |
| white blood cell that mediates the immune response, migrate through the body | lympocytes |
| Mobile white blood cells are | macrophages and lympocytes |
| a cell found in CT that may become cartilage | fibroblasts |
| fat cells are | Adipocytes- vary throughout the body and person to person |
| pigment secreting cells | melanocytes |
| immune cells -secretes chemicals to that mediate immunization | Mast cells |
| Cells that participate in the immunity of forign bodies | mast, lymphocytes, macrophages |
| Classification of Connective Tissues | Loose, Dense, fluid and supporting |
| Connective tissue proper includes | Loose and Dense |
| Fluid CT includes | Blood and Lymph |
| Supporting CT includes | Bone and cartilage |
| Functions of Loose CT | Filler or packing material of the body. Responsible for cushioning, fills gaps and supports the skin. Store fats, surround blood and nerves (insulation) |
| AREOLAR CT function | LCT, Protective padding, capable of movement, provides defense against pathogens |
| AREOLAR CT Location | |
| Adiposes CT Function | deep to skin, breast, stomach, buttocks, acts as padding around kidney and eyes |
| Adipose LCT location | Padding and shock absorber, insulation, great source of energy storage |
| Reticular LCT Location | Bone marrow, liver, lymph nodes, kidney, spleen. |
| Reticular LCT functin | supports framework |
| fibers packed tightly and aligned parallel to applied forces. | Dense Regular CT |
| still tightly packed but arrangement is not patterned. | Dense Irregular CT |
| Location of Dense Reg. CT | Found in Tendons, Aponeuroses (flat tendons), elastic tissue and ligaments |
| Location of Dense Irreg CT | Skin, sheeth covering bone and cartilage- encapsulates |
| Tendons | DRCT, Attach skeletal muscle to bone. Collagen fibers run longitudinally. Transfer pull of muscle to the bone.Large number of fibroblasts |
| Elastic tissue | Large amounts of elastic(elastin) fibersBouncy and resilientTolerates expansion and contractionFound in blood vessels and respiratory passage ways |
| found between cvertebrae, ligaments supporting the transistional epithelia and penis, and blood vessels | Elastic RCT |
| Aponeuroses | Resemble flat broad tendonsSometimes cover muscleAssist in attaching superficial muscleto another muscle or structure |
| Like tendons but usually connect bone to boneNear equal amount of collagen and elastin fibersModerate stretching capabilityStabilize the spine | Ligaments |
| DRCT that may connect superficial muscles to other muscles or structure | Aponeuroses (Apron, like an apron) |
| DRCT that connects muscles to bone | tendons |
| DRCT that connects bone on bone | ligaments |
| Location of Dense Irregular CT | dermis, around viscera, sheaths around nerves and muscle |
| Function of DIRCT | protection, help resist forces from many directions |
| Fluid Connective Tissues | Blood and Lymph |
| a fluid CT containing a matrix called plasma and various types of cells, or formed elements | Blood |
| formed as interstitial(between tissue)fluid is collected into lymphatic vessels to be brought back to the blood vessels | Lymph |
| Supporting Connective TissuesCartilage and Bone | Few cells High amounts of fibersA ground substance that may contain insoluble calcium salts, less ground substance in boneChondrocytes or osteocytes |
| Type of Connective Tissue that may contain insoluble calcium salts | Bone |
| another word for chondrocyte cells | cartilage cells |
| another word for pockets where chondrocytes exist | Lacunae |
| Avascular | No blood vesseles |
| how does cartilage carry out gass exchange or nutrient/waste exchange? | DEFFUSION THROUGH THE MATRIX |
| Separated by perichondrium | CARTILAGE |
| Perichondrium | cartilage layer surrounding or separating cartilage |
| Bone- | Made of osteocytes=bone cells, inside lacunaeLacunae organized around blood vesselsVessels transfer nutrients through canaliculiCovered in periosteum, attachs bone to surrounding tissueContinued growth and repair |
| osteocytes= | |
| canaliculi | small branching vessels in Bone Supportive tissue that carries materials between octeocytes and blood vessels |
| another word for sheath layer covering surface of bone | periosteum |
| periosteum is | fiber on the outside, cellular layer inside |
Created by:
miaadriano