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19 Cards in this Set
- Front
- Back
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What is connective tissue proper?
Dense regular connective tissue |
Densely packed collagenous fibers in parallel arrangement (eg. tendons, ligaments)
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What is connective tissue proper - dense irregular connective tissue?
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Interwoven, densely packed collagenous fibers (eg. dermis of skin, submucosa of digestive tract, fibrous capsules of organs and joints)
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What is connective tissue proper - elastic connective tissue?
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Elastic fibers stretch and return to original length (eg. in wall of large arteries and respiratory airways)
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What is connective tissue proper - reticular connective tissue?
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A network of fibers in jelly-like matrix (eg. in the liver, spleen, lymph nodes, and bone marrow)
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What is connective tissue proper - adipose tissue?
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Adipose tissue contains adipocytes (cells housing large fat droplets) and energy storage, cushioning and insulation
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What is connective tissue - blood and bone?
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Blood are cells in fluid matrix (such as plasma, has many proteins)
Bone is for support and has cells (osteocytes) in rigid and calcified matrix (hard) |
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What is connective tissue cartilage?
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Cartilage is used for support and are cells (chondrocytes) in flexible matrix. There are three types: hyaline, fibrocartilage and elastic cartilage
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What is hyaline cartilage?
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Hyaline cartilage is the most abundant type of cartilage; it is fine collagenous fibers in matrix and are flexible (eg. they are found in articular surfaces of the bone, fetal skeleton, nose, walls of respiratory airways)
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What is fibrocartilage?
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Fibrocartilage are many collagenous fibers in matrix and are tough (eg. intervertebral disks)
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What is elastic cartilage?
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Elastic cartilage has many elastic fibers in matrix and can stretch (eg. ear and auditory canal)
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What is the function of muscle tissue?
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Muscle tissue is specialized for contraction and has contractile proteins, myosin and actin, which slide past each other during contraction
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What are the types of muscle tissue?
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Skeletal muscle: attached to bones, skin and for voluntary actions [movement of body, limbs, facial expressions]
Cardiac muscle: heart muscle for pumping blood Smooth muscle: involuntary actions [eg. iris - dilation of pupil, digestive tract, and constriction and dilation of blood vessels] |
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What is nervous tissue?
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Nervous tissue is specialized to conduct electrical impulses and comprise of neurons and supporting cells
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What are neurons?
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Neurons conduct electrical impulses
Three parts to a neuron: dendrite [receives impulses], cell body [has organelles and receives impulses] and axon [transmits impulses] |
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What are the supporting cells in the nervous tissue?
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Supporting cells/glia act to bind neurons together, provide insulation (myelin), help speed up impulse conduction, nourish neurons and help form tight junctions [eg. blood-brain barrier]
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What is an organ?
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An organ is a collection of tissues with specialized function. An organ contains at least 2 different tissue types, usually has all 4
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What is a membrane?
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A membrane has a combination of epithelial and connective tissue. The epithelial tissue is supported by the connective tissue.
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What are the types of membranes?
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Cutaneous membrane: part of the skin
Synovial membranes: associated with joints Mucous membranes: specialized for absorption and secretion [eg. line respiratory and digestive tracts] |
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Types of membrane (cont.)
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Serous membranes (serosa) which secretes fluid lubricating body cavities and organs.
- pleura [lines chest cavity and lungs] - pericardium [lines cavity containing heart] - peritoneum [lines abdominal cavity and its organs] - subdivided in parietal and visceral parts [parietal lines cavity, visceral lines organs] |
