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37 Cards in this Set
- Front
- Back
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What are connective tissues?
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connective tissue is compose of cells and extracellular material.
it is vascular, except for catilage NOT found on free surfaces of body extracellular material determinant of characteristics of connective tissue |
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What are two main component of the extracellular material?
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1. Ground substance (hyaluronic acid, proteoglycans/protein carbohydrates)
2. fibers |
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What are the types of fibers in connective tissue
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Collegen
Reticular fibers Elastic fibers |
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What are Collagen fibers?
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thick, rope-like fiber
strong and flexible, but NOT elastic DO NOT branch LOCATION: tendons, ligaments, bones, cartilage |
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What are Reticular fibers?
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fine, short, narrow collegen fibers
Not as strong as collagen Branches GRAPES on the VINES filling in spaces between tissues and organs |
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What are elastic fibers?
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Made of elastin protein.
after stretching, it resumes its original shape. |
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What are the classes of connective tissue?
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1. connective Proper
2. Cartilage 3. Bone 4. Blood |
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What are the types of connective proper tissue
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Loose Connective tissue
Dense Connective tissue |
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What is loose Connective tissue
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contains cell types, few fibers, very vascular
Areolar CT Adipose CT Reticular CT |
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What are Areolar connective tissue?
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Binds the epithelial to the connective tissue
where defense cells fight against infection |
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What are Adipose connective tissue?
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stores energy/nutrients
protects and reduces heat loss through skin found in the hypodermis |
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What is Reticular connective tissue?
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like areolar CT
only contains only reticular fibers forms frame work of organs (liver, spleen, lymph nodes, & bone marrow |
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What are Dense connective tissues?
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contains few cells (mainly fibroblasts) & many fibers (collagen fibers thicker) can resist strong pulling force s
slightly vascular |
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What are the types of dense connective tissues
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Dense Regular connective tissue
Dense irregular connective tissue Elastic connective tissue |
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What is dense regular connective tissue
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Fibers are arranged in PARALLEL
collagen and elastin fibers (parallel = tensile strength in direction of pull one direction force LOCATION: dermis of skin, joint capsules, submucosa of Gasteral intestine, fibrous membranes (thick sheets of connective tissues) |
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What is Dense irregular connective tissue?
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fibers are NOT arranged in PARALLEL
pulling force is in ALL directions |
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What is elastic connective tissue?
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contains mainly elastic fibers, recoiling
FUNCTION: walls of elastic arteries, trachea, bronchi, true vocal cords |
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What is Cartilage?
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resists compression (pressing)
contains chondrocytes nonvascular matrix thin collagen fibers |
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What are types of cartilage?
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Hyaline cartilage
Elastic cartilage fibrocartilage |
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What is Hyaline cartilage?
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contains collagen fibers (NOT visible)
Chondrocytes in lacuna LOCATION: articular surfaces (top and bottom of bone), trachea, nose |
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What is elastic cartilage?
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flexible
contains mainly collagen and lots of elastic fibers LOCATION: external ear, epiglottis |
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What is fibrocartilage?
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Mostly collagen fibers
STRONGEST cartilage Chondrocytes arranged in rows LOCATION: intervertebral discs, discs of knee joint |
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What is bone?
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hard matrix with calcium salts
supports body, PROTECTS organs, skeletal muscle attachment storage of Ca2+ |
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What is Lamellae?
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Matrix formed in layers
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What are osteoblast?
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produce the bone matrix
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What are esteocytes?
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maintain bone matrix
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What are exteoclasts?
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break down the bone matrix
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What is blood?
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cells + platelets(blood clotting) + plasma (liquid part of blood)
matrix is the blood plasma transports respiratory gasses (Oxygen in and CO2 out), nutrients, wastes and other subatances |
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What are 2 blood cell types?
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Erythrocytes & leukocytes
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What are erythrocytes?
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Red blood cells
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what are Leukocytes
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white blood cells
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What are the types of Muscle tissue?
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striated muscle
cardiac muscle Smooth muscle |
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What are striated muscle?
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cells elongated, multinucleated, clear striations
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What are cardiac muscle?
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finer striations, branching cells, intercalated discs
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What are smooth muscle?
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no striations, spindle-shaped fibers, centrally placed nucleus
LOCATION: in wall of hollow organs vessels |
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What are neurons?
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highly branched specialized excitatory cells, extensive cytoskeleton, pale staining nucleus
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what are neuroglia?
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supporting cells that insulate and nurture neurons
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