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33 Cards in this Set
- Front
- Back
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characteristics of connective tissue
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- most abundant, able to replicate.
- lots of inorganic intercellular material, produced by cells - highly vascular, except cartilage. - 4 gen. purposes (of different types): - supports/binds other tissues. - provides for metabolic needs: organs - manufacture protective/regulatory chemicals - store nutrients. |
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loose aerolar purpose
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binds organs, holds fluids
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dense regular purpose
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strong, flexible support.
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dense irregular
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tensile strength - any direction.
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elastic connective purpose
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supports, provides framework
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reticular connective
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stores, provides phagocytic function
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adipose purpose(s)
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stores fat, insulates.
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loose aerolar structure and example
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loose, spongy arrangement:fibrocytes and fibres (collagen, elastic, reticular) and matrix.
eg: superficial fascia, beneath skin. |
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dense irregular structure and example
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proportionately more fibres than loose connective tissue, mainly collagen fibres: strength.
eg: intramuscular septa, fibrous organ capsules, joints. |
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dense regular structure and example
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lowest proportion of cells, highest proportion of fibres.
highest tensile strength. eg. found where subject to *force*: tendons, aponeurosis, ligaments. |
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elastic connective tissue structure and purpose
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mainly branching elastic fibres.
can stretch 1.5 times length. eg: walls of large arteries and passageways |
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reticular connective structure and example
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network of reticular (lattice) fibres through jelly-like matrix. contains phagocytes - injests foreign materials.
eg: forms framework of spleen, liver, thymus, lymphnodes. |
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adipose tissue 3 purposes
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food reserve, insulator, protects organs.
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adipose tissue structure (micro/macro)
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stores fat droplets. grouped into lobes separated by fibrous tissue.
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adipose tissue found where
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around organs, and in hypodermis of skin.
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name three types of cartilage
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elastic, fibrous, hyaline
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what is a lacunae
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cavity that a chondrocyte occupies.
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where is hyaline cartilage found
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articular surfaces of bone, costal cartilage of thoracic cage, trachea and bronchi
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which is the most abundant cartilage in the body
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hyaline
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which type of cartilage is a precursor to bone?
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hyaline cartilage
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which type of cartilage has a blood supply
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NONE.
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describe the structure of fibrocartilage
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dense matrix with many collagen fibres.
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where is fibrocartilage found?
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wherever there is a need for a DURABLE and STRONG cartilage: menisci of knee, intervertebral discs, symphysis pubis
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what is the structure of hyaline cartilage
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homogenous matrix with fine collagenous fibres
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what does cartilage do?
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is associated with bone, and is a supportive and connective tissue.
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where is elastic cartilage found?
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outer ear, larynx
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what are two kinds of specialized connective tissue?
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blood and bone
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describe the structure of vascular tissue
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BLOOD.
liquid matrix (plasma) intercellular material. has formed elements within plasma (erythrocytes, leukocytes, and thrombocytes.) (RBC, WBC, platelets) |
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What is lymph?
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filtrate of extracellular fluid
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describe the structure of bone tissue
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large amount of intercellular material (solid matrix) containint inorganic salts, filled with organic material.
Salts make it strong/rigid, yet organic material makes it flexible. |
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where are mast cells found?
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In loose aerolar connective tissue
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what does a mast cell do?
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produces chemicals (such as histamines and anticoagulants) that are required by the body
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what is a fibroblast
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produces fibres within connective tissue. (collagen, reticular, elastic, )
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