Post on 17-Jan-2016
What are the different types of tissues?BIOL 2010 Human Anatomy & Physiology IBIOL 2010 Human Anatomy & Physiology I
Tissues grouped into major types based on:* Structure of cells, * Composition of noncellular extracellular matrix and * Cell function
4 MAJOR Categories:• • • •
Histology: Microscopic Study of Tissues___________: removal of tissues for diagnostic purposes___________: examination of organs of a dead body to determine cause of death
Epithelial• Cells __________________• Covers body surfaces and
forms glands– Outside surface of the body– Lining of digestive, respiratory
and urogenital systems, heart, blood vessels and of body cavities
• Has _____, _____, and ______ surfaces
• • Specialized cell contacts• • Regenerate
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Nucleus
Free surface
Capillary
Surface view
Cross-sectional view
LungPleura
LM 640x
LM 640x
Epithelial cells withlittle extracellularmatrix
Connectivetissue
Basementmembrane
b: © Victor Eroschenko; c: © Ed Reschke
What are the different types of tissues?
• _____________ underlying structures; e.g., epithelium lining the mouth
• Acting as ____________; e.g., skin• Permitting the passage of substances; e.g.,
nephrons in kidney• ______________ substances; e.g., pancreas• ______________ substances; e.g., lining of small
intestine
What are the functions of epithelial tissue?
• Number of layers of cells– _________ one layer of cells. Each extends from
basement membrane to the free surface– _________ more than one layer. Shape of cells of the
apical layer used to name the tissue. – ________________ tissue appears to be stratified, but
all cells contact basement membrane so it is in fact simple
• Shape of cells– ___________ flat, scale-like– ___________ about equal in height and width– ___________ taller than wide
What specific types of epithelial tissue are there?
• Simple: allows diffusion of gases, filtration of blood, secretion, absorption
• Stratified: protection, particularly against abrasion
• Squamous: allows diffusion or acts as filter
• Cuboidal and columnar: secretion or absorption. May include ____________that produce and secrete mucus.
What functions are associated with specific types of epithelial tissue?
Connective Tissue• Abundant; found in every organ• Consists of cells separated by extracellular matrix• Many diverse types• Performs variety of important functions
What are the different types of tissues?
• ________________ organs as a capsule and/or layers
• _______ tissues to one another (tendons & ligaments)
• _________ and movement (bones)
• __________ (fat)
• __________ and insulate (fat)
• Transport (blood)
• Protect (cells of the immune system)
What are the functions of connective tissue?
4-16
• Connective Tissue Proper– ___________ (areolar). Collagenous fibers are
loosely arranged– ___________ Fibers form thick bundles that
nearly fill all extracellular space
• Supporting CT– –
• Fluid CT–
What are the major types of connective tissue?
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4-19
4-26
• Muscle tissue characteristics– _____________ or shortens with force– Moves entire body and pumps blood
• Types– ___________ most attached to skeleton, but some
attached to other types of connective tissue. Striated and voluntary.
– ___________ muscle of the heart. Striated and involuntary.
– ___________ muscle associated with tubular structures and with the skin. Nonstriated and involuntary.
What are the different types of tissues?
Nervous tissue• _________ or nerve cells have the ability to
produce action potentials (communication)
What are the different types of tissues?
• Support cells of the brain, spinal cord and nerves
• Nourish, protect, and insulate neurons
What are the different types of tissues?
Nervous tissue•