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41 Cards in this Set
- Front
- Back
connective tissue types
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Connective tissue proper
Bone Cartilage Vascular |
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Connective Tissue: common characteristics
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Extensive intercellular matrix: more material between the cells than the cells.
- Come from same embryonic source known as mesenchyme, a type of embryonic tissue |
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Connective Tissue Proper
(location) |
Located all over body;
underlies all epithelium surrounds all muscles lies within muscles connects muscle fibers together surrounds blood vessels surrounds nerves outside of the CNS surrounds and penatrates all glands |
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Connective Tissue Proper
(Functions) |
• support and bind tissues together
• Convey body fluids: solutions outside of the cells in between cells which is held by connective proper • Defense : protect the body from foreign agents, if being invaded by foreign agents, if can be fought in connective tissue proper it will minimize impact doesn’t reach cells. |
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Loose Connective Tissue Proper
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Most Abundant type of connective tissue proper
made up of various components |
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Loose Connective Tissue Proper
(structures for support) |
Callogen fibers
Reticular fibers Elastic fibers Fibroblasts |
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Collagen fibers
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to keep loose connective tissue from being pulled apart
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Reticular Fibers
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lie along structures that pass through loose connective tissue proper, support structures that pass through
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Elastic fibers
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Can be stretched and go back to original shape after being stretched
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Loose Connective Tissue Proper
(structures used to convey body fluids) |
Ground substance
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Loose Connective Tissue Proper
(structures used for defense) |
Histiocytes
plasma Cells mast Cells easinphils neutrophils |
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Plasma cells
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chemical markings identify whats part of the body – plasma cells destroy cells that don’t belong
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- Mast cells
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produce and secreate heparin and histamine.
• Heparin prevents blood clotting • Histamines: increase permiablility of capillary- more fluid passes through capillary by diffusion allows affected area to accumulate fluid becomes enflame. Easier to defend itself to defend against dilute bacterial affection allowing it to spread out. |
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Eosinophils
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white blood cells normally in circulatory system when something occurs leaves system.
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Neutrophils
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phagocytise bacterial and digest them. Accumulate dead neutrophills which is puss
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Dense Connective Tissue Proper
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Has more Collegen Fibers than loose connective tissue.
in areas that undergo a lot of tension |
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Irregular Dense Connective Tissue Proper
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Oriented in different angles because tension can come from all sides
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Fatty Connective Tissue Proper
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Adipose Tissue - fat cells
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Cartilage and Bone
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Both made to bear weight
Firm intercellular matrix - mix of inorganic compounds Cartilage - more flexible Bone - stronger |
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Cartilage
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Firm intercellular matrix
Chondrocytes lacunae perichondrium avascular no nerves |
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Hyaline Cartilage
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Most common type of cartalige
most is replaced by the time adulthood is reached |
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Elastic Cartilage
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Elastic Fibers make matrix more stretchy
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Fibrocartilage
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Caused by an increase in collagen fibers. in high shock areas such as in between vertabras
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Bone
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Composed of 65% inorganic crystals
35% organic material is avascular and richly integrated with nervous system |
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Bone
(Gross Structure) |
Compact bone
Spongy Bone Articular Cartilage Medullary cavity Periosteum Endosteum |
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Bone
(microscopic structures) |
Osteocytes
lacunae canaliculi osteoblasts osteoclasts |
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Osteocytes
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in lacunae types of cells in bone
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Lacunae
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space that osteocytes occupy
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Canaliculi
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channels by wich osteocytes communicate with each other
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Osteoblasts
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Bone destroying cells found on the surface of the bone absorbing and thinning out the bone matrix
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Osteoclasts
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bone forming cells found on the surface of the bone. Secreting bone matrix
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Ossification
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Formation of Bone
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Intramembranous Ossification
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formation of membrane bone from mesenchyme
this process is called woven bone |
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Endochondral Ossification
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Most common form of bone development
Mesochyme to highbeam cartilage Mesenchyme will start by forming a model of bone Pareychondriam change to make peryosteum in center of bone Peryosteum is associated with osteoblasts Digest away collar center is hollowed out which is then invaded by the vascular system Medulary cavity is embedded with vascular system. Circulatory system bringsin osteobasts to the inside by vascular system Epithesial plate only lasts till puberty |
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Zone of Cartilage Deposit
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deposition cartilage added to side towards epthesis
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Zone of Calcification
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: mineralizing cartilage converting it to bone
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Zone of Erosion
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: osteoclasts are eroding away
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Vascular Tissue
(formed Elements) |
Erythrocytes
Leucocytes Thrombocytes |
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Erythrocytes
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blood cells, not true cells because they lack a nucleus
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Leucocytes
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true cells, are the white blood cells: involved in the bodies defense
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Thrombocytes
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not true cells, fragments of cells: are involved in clots
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