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What are the general features of epithelial tissue?
- Lines body surfaces
- Cells closely packed
- Cells arranged in sheets
- Lines hollow organs
Where in the body is epithelial tissue found?
- Hollow Organs
What are the functions of each type of epithelial tissue?
- Provide physical protection
- Control permeability
- Provide sensation
- Produce specialized secretions
What are the different types of epithelial tissue?
- Simple: One layer
- Stratified: Multiple layers
Squamous, Cuboidal, Columnar
What are the two types of glands?
Exocrine and Endocrine
What are the general features of connective tissue?
Two elements: Specialized cells and extracellular matrix.
- Does not occur on surfaces, usually
- highly vascular (exceptions include cartilage and tendons),have nerve supply
What are the different types of connective tissue?
Loose: Areolar, Adipose, Reticular
Dense: Regular, Irregular, Elastic
Fluid: Blood, Lymph
Supporting: Hyaline, Elastic, Fibrocartilage
Where is connective tissue found?
Throughout the body but never exposed to outside.
What are the functions of connective tissue?
- -binds together, supports, strengthens other tissue types.
- -protects and insulates internal organs
- -compartmentalizes structures
- -major transport system
- -major site of stored energy reserves
- -main site of immune responses
What are the three types of protein fibers found in connective tissue?
Reticular, Collagen, Elastic
What are the four types of membranes?
- -Mucous (Line organs that communicate to
- -Serous (Mesothelium supported by areolar
- connective tissue)
- -Cutaneous(Covers surface of body)
- -Synovial (Line mobile joint cavities)
What is fascia?
- Connective tissue layer and wrappings that support and surround organs:
- Superficial Fascia
- Deep Fascia
- Subserous Fascia
What are the functions of each type of muscle tissue?
Skeletal: Move skeleton/generate heat
Cardiac: Move blood/maintain blood pressure
- Smooth: Move food, urine, and reproductive
What are the two types of cells found in nervous tissue?
Neurons and Neuroglia
How does the body respond to injury?
- -Mast cells release chemicals (mast cell activation) which stimulate inflammation.
- -Then fibroblasts move into area laying down collagen fibers (scar tissue).
Where is stratified squamous found?
Surface of skin and line the mouth, throat, esophagus, rectum, anus and vagina.
Where is simple cuboidal found?
Found lining exocrine glands and ducts (passageways that carry secretions).
Where is transitional epithelium found?
Lines the urinary bladder, the ureters, and the urine-collecting chambers withing the kidneys.
Where is simple columnar epithelium found?
Found lining the stomach, intestine, gallbladder, uterine tubes, and ducts within the kidneys.
Where is pseudostratified columnar epithelium found?
Found: lining the nasal cavities, the trachea, and larger airways of the lung. Also found along portions of the male reproductive tract.
Where is stratified columnar epithelium found?
Found: lining large ducts such as those of the salivary glands or pancreas.