Tissue description/location Flashcards
Where is simple squamous epithelium tissue found?
Location: Kidney glomeruli, alveloli, heart lining, blood vessels, lymphatic vessels, lining of ventral body cavity
Function: Allows diffusion and filtration
Simple cuboidal epithelium
Function: Secretion, absorption
Location: Kidney tubules, ducts and secretory portions of small glands, ovary surface
Simple columnar epithelium
Function: Allows secretion and absorption, ciliated type propels mucus
Location:Nonciliated lines digestive tract, gallbladder; ciliated lines bronchi, uterine tubes, uterus
Psuedostratified columnar epithelium
Function: Mucus secretion, cilia propel mucus
Location: Nonciliated in sperm ducts; ciliated lines trachea and upper respiratory
Stratified squamous epithelium
Function: Protects underlying tissue from friction/abrasion
Location: Lines esophagus, mouth, vagina, forms epidermis
Stratified cuboidal epithelium
Function: Protection
Location: Sweat, mammary, salivary glands
Stratified columnar epithelium
Function: Protection, secretion
Location: Rare, some in male urethra
Transitional epithelium
Function: Very stretchy and permits distension of, ie, bladder
Location: Lines ureters, bladder, part of urethra
Areolar connective tissue
Function: wraps and cushions organs, holds tissue fluid
Location: Widely distributed under epithlia, forms lamina propria of mucous membranes, packages organs, surrounds capillaries
Adipose connective tissue
Function: Stores energy, insulates, supports/protects organs
Location: Under skin in hypodermis, around kidneys and eyeballs, in abdomen and breasts
Reticular connective tissue
Function: Reticular fibers form internal skeleton that supports white blood cells, mast, microphage
Location: Lymph notes, bone marrow, spleen
<p><span><strong>Dense irregular connective tissue</strong></span></p>
<p><strong>Description: </strong>Mostly irregular/interlocking collagen fibers, some elastin, nucelei of fibroblast cells scattered throughout</p>
<p><strong>Function:</strong> Withstands tension in multiple directions, structural strength</p>
<p><strong>Location:</strong> Fibrous capsules of organs and joints, dermis, submucosa of digestive tract</p>
<p><span><strong>Dense regular connective tissue</strong></span></p>
<p><strong>Description: </strong>Parallel collagen fibers, some elastin, flat nuclei of fibroblast cells smushed between layers, wavy appearance</p>
<p><strong>Function:</strong> Attaches muscles to bones or muscles, bones to bones, withstands one-directional forces</p>
<p><strong>Location:</strong> Tendons, ligaments, aponeuroses</p>
<p><span><strong>CT: Hyaline cartilage</strong></span></p>
<p><strong>Description: </strong>Cells surrounded by lacunae suspended in firm amorphous (not visible) matrix</p>
<p><strong>Function:</strong> Supports, reinforces, resilient cushion, resists compressions</p>
<p><strong>Location:</strong> Covers ends of long bones in joints, forms rib costal, nose, trachea, larynx</p>
<p><span><strong>CT: Elastic cartilage</strong></span></p>
<p><strong>Description:</strong> Similar to hyaline but with more visible elastic fibers in matrix</p>
<p><strong>Function:</strong> Maintains shape of structure while allowing flexibility</p>
<p><strong>Location:</strong> Ear, epiglottis</p>
<p><span><strong>CT: fibrocartilage</strong></span></p>
<p><strong>Description:</strong> Similar to hyaline but less firm; thick collagen fibers</p>
<p><strong>Function:</strong> Tensile strength, compressive shock</p>
<p><strong>Location:</strong> Intervertebral discs, pubic, knee discs</p>
<p><span><strong>CT: Bone</strong></span></p>
<p><strong>Description:</strong> Hard calcified matrix of collagen fibers, bone cells in lacunae</p>
<p><strong>Function:</strong> Supports, protects thru enclosing, levers for muscles, stores calcium, minerals, and fat, marrow generates blood cells</p>
<p><strong>Location:</strong> … bones.</p>
<p><span><strong>CT: blood</strong></span></p>
<p><strong>Description:</strong> Red and white blood cells in fluid plasma matrix</p>
<p><strong>Function:</strong> Transports respiratory gas, nutrients, wastes</p>
<p><strong>Location:</strong> Within blood vessels</p>
<p><span><strong>Skeletal muscle</strong></span></p>
<p><strong>Description:</strong> Long, cylindrical, striated, multinucleate cells</p>
<p><strong>Function:</strong> Voluntary movement, locomotion, facial expression</p>
<p><strong>Location:</strong> In skeletal muscles attached to bone or skin</p>
<p><span><strong>Cardiac muscle</strong></span></p>
<p><strong>Description:</strong> Branching, striated, one nucleus, form junctions at intercalated discs</p>
<p><strong>Function:</strong> Contracts to propel blood</p>
<p><strong>Location:</strong> Heart</p>
<p><span><strong>Smooth muscle</strong></span></p>
<p><strong>Description:</strong> Spindle shaped cells with central nuclei, not striated, closely arranged to form sheets</p>
<p><strong>Function:</strong> Propels substances along internal passageways, involuntary</p>
<p><strong>Location:</strong> Walls of hollow organs</p>
<p><span><strong>Nervous tissue, neuron</strong></span></p>
<p><strong>Description:</strong> Branching, long tendrils extend from irregular cell body</p>
<p><strong>Function:</strong> Transmit electrical signals, control activity of organs</p>
<p><strong>Location:</strong> Brain, spinal cord, nerves</p>
