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Definition
-Type of tissue that functions in protection, secretion, absorption, and excretion
-Covers body surfaces, cover and line internal organs, and compose glands
-Lacks blood vessels, readily divide; cells are tightly packed |
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Definition
-Bind, support, protect, fill spaces, store fat, and produce blood cells
-Widely distributed throughout the body
-Mostly have good blood supply; cells are further apart than in Epithelial tissue |
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Definition
-Functions in movement
-Attached to bones, in the walls of hollow internal organs, and the heart
-Able to contract in response to specific stimuli |
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-Transmit impulses for coordination, regulation, integration, and sensory reception
-Located in the brain, spinal cord, and peripheral nerves
-Cells communiacte with each other and with other body parts |
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Term
| Simple Squamous Epithelium Tissue |
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Definition
-Functions in filtration, diffusion, and osmosis; covers surface
-Located in air sacs of the lungs, walls of capillaries, and linings of blood and lymph vessels
-Characteristics include being single layered, having tightly packed cells with nuclei broad and thin; easily damaged |
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Term
| Simple Cuboidal Epithelium Tissue |
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Definition
-Functions in secretion and absorption
-Located in surface of ovaries, linings of kidney tubules, and linings of ducts of certain organs
-Characteristics include being single layered with cube shaped cells, having cells centrally located with spherical nuclei |
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| Simple Columnar Epithelium Tissue |
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Definition
-Functions in absorption, secretion, and protection
-Located in the linings of the uterus, stomach, intestines
-Characteristics include having a single layer of elongated cells with elongated nuclei; having either ciliated or nonciliated cells; has some cells, specialized for absorption, often have finger-like protrusions called microvilli, which increase the surface area of the cell membrane
-Also contains goblet cells which secrete mucus onto the free surface of the tissue |
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Term
| Pseudostratified Columnar Epithelium Tissue |
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Definition
-Functions in protection, secretion, and movement of mucus
-Located in the linings of respiratory passages
-Characteristics include the appearing stratified or layered due to nuclei located at two or more levels in the row of aligned cells; variable cell shape; commonly have cilia extended from the free surfaces of the cells; scattered goblet cells |
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Term
| Stratified Squamous Epithelium Tissue |
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Definition
-Functions in protection
-Located in the outer layer of skin, linings of oral cavity, throat, vagina, and anal canal
-Characteristics include containing many cell layers making it relatively thick,; division of cells in deeper layers; forms the outer layer of the skin; has potential for keratinization |
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| Stratified Cuboidal Epithelium Tissue |
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Definition
-Functions in protection
-Located in the linings of larger ducts of mammary glands, sweat glands, salivary glands, and pancreas
-Characteristics include having two or three layers of cube-shaped cells |
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| Stratified Columnar Epithelium Tissue |
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Definition
-Functions in protection and secretion
-Located in part of the male urethra and parts of the pharynx
-Characteristics include having several layers of elongated cells; superficial cells are columnar wheras basal layers consist of cuboidal cells |
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Term
| Transitional Epithelium Tissue |
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Definition
-Functions in distensibility and protection
-Located in the inner lining of the urinary bladder, linings of ureters, and parts of the urethra
-Characteristics include responding to increases in tension; forms a barrier that helps prevent the contents of the urinary tract for diffusing back into the internal environment |
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Term
| Glandular Epithelium Tissue |
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Definition
-Functions in secretion
-Located in salivary glands, sweat glands, and endocrine glands
-Characteristics include being composed of cells that are specialized to produce/secrete substances into ducts or body fluids; such cells are usually found in columnar or cuboidal epithelium |
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Definition
| -Secrete their products into ducts that open onto surfaces such as the skin or linings of the digestive tract |
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Definition
| -Secrete their products into tissue fluid or blood |
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Definition
-Type of exocrine glandular secretion where a fluid product is released through the cell membrane by exocytosis
ex.) salivary glands, pancreatic glands, and sweat glands of the skin |
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Term
Apocrine Gland
(Lizard's tail) |
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Definition
-Type of exocrine glandular secretion where a cellular product and portions of the free ends of the glandular cells are pinched off during secretion
ex.) mammary glands, ceruminous glands lining the external ear canal |
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Term
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Definition
-Type of exocrine glandular secretion where cells disintegrate entirely, releasing their secretory products
ex.) sebaceous glands of the skin |
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Term
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Definition
| -Molecules that fill spaces between cells, consisting mostly of protein fiber networks |
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Definition
| -Most common type of fixed cell in connective tissue that functions in production of fibers |
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Definition
-Also called Histiocyte, is a wandering cell in connective tissue that functions in carrying on phagocytosis
-Originate as white blood cells and are almost as numerous as fibroblasts in some connective tissues |
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Definition
-Fixed cell in connective tissue that function in secretion of heparin and histamine
-Usually near blood vessels |
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Definition
-Type of connective tissue fiber composed of the protein collagen, that functions in holding structures together with great tensile strength (pulling force), (ex.) tendons and ligaments
-Characteristics include being grouped in long, parallel bundles, and only slightly elastic |
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Definition
-Type of connective tissue fiber that is composed of a protein called elastin, and stretches easily (ex. vocal cords)
-Characteristics include having fibers that form complex networks; being weaker than collagenous fibers; ability to resume original lengths and shapes |
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Definition
-Type of connective tissue fiber that are very thin collagenous fibers and function in lending delicate support (ex. spleen)
-Characteristics include being highly branched and forming delicate supporting networks |
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Definition
-Type of loose connective tissue that functions in binding organs and holding tissue fluids
-Located beneath the skin, between muscles, and beneath epithelial tissues
-Characteristics include containing mainly fibroblasts that are located some distance apart and are separated by a gel-like extracellular matrix that contains many collagenous and elastic fibers that fibroblasts secrete |
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Definition
-Type of loose connective tissue that functions in protection, insulation, and storage of fat
-Located beneath sin, around kidneys, behind eyeballs, and on the surface of the heart
-Characteristics include being formed when abundance of certain cells crowd other cell types; also cushions joints and some organs; also insulates beneath the skin and stores energy in fat molecules |
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Definition
-Type of loose connective tissue that functions in support
-Located in the walls of liver and spleen
-Characteristics include being composed of collagenous fibers in a three-dimensional network; helps provide framework of certain internal organs like the liver and spleen |
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Term
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Definition
-Connective tissue that functions in binding organs
-Located in tendons, ligaments, and deeper layers of skin
-Characteristics include having many closely packed, thich, collagenous fibers, and a fine network of elastic fibers; contains few cells which are mostly fibroblasts |
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Definition
-A rigid connective tissue that provides support, framework, attachments, protects underlying tissues, and forms structural models for many developing bones
-Characteristics include containing chondrocytes that occupy lacunae within the extracellular matrix; has lack of a direct bloody supply which causes slow healing |
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Definition
-Functions in support, protection, and provision of framework
-Located in the nose, ends of bones, and rings in the walls of the respiratory passages
-Characteristics include being the most common type of cartilage; looks like white glass |
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Definition
-Functions in support, protection, and provision of flexible framework
-Located in the framework of the external ear and parts of the larynx
-Characteristics include a dense network of elastic fibers which makes it more flexible than hyaline cartilage |
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Definition
-Functions in support, protection, and shock absoprtion
-Located between bony parts of spinal column, parts of pelvic girdle, and knee
-Characteristics include being a very tough tissue that contains many collagenous fibers |
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Definition
-The most rigid connective tissue that functions in support, protection, and provision of framework
-Characteristics include acting as an attachment for muscle; contains red bone marrow which functions in production of blood cells and stores and releases inorganic chemicals such as Ca and K |
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Definition
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Definition
-Central canal that is cylinder-shaped
-Cemented together to form the substance of bone |
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Definition
-Transporter of a variety of materials between interior body cells and those that exchange substances with the external environment
-Helps maintain homeostasis
-Composed of formed elements suspended in a fluid extracellular matrix called plasma |
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Term
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Definition
-Thin, sheet-like structures composed of epithelium and underlying connective tissue covering body surfaces and lining body cavities
-Contains three types: Serous, Mucous, and Cutaneous |
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Term
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Definition
-Lines body cavities that lack openings to the outside and form the inner linings of the thorax, abdomen, and they cover the organs within these cavities
-Consists of a layer of simple squamous epithelium and a thin layer of loose connective tissue
-The cells secrete watery serous fluid that lubricate membrane surfaces |
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Term
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Definition
-Lines cavities and tubes that open to the outside of the body, including the oral and nasal cavities and the tubes of the digestive, respiratory, urinary, and reproductive systems
-Consist of epithelium overlying a layer of loose connective tissue |
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Term
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Definition
| -More commonly called the skin |
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Definition
| -Lines joints and is composed entirely of connective tissues |
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Definition
-Found in muscles that attach to bones and is voluntary
-Contains long, threadlike cells have alternating light and dark cross-markings called striations |
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Term
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Definition
-Muscle that involuntarily moves internal organs
-Does not have any striations; contains shorter cells that are spindle-shaped, each with a single centrally located nucleus
-Comprises the walls of hollow internal organs like the stomach, intestine, urinary bladder, uterus, and blood vessels
-Muscle is involuntary |
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Term
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Definition
-Located only in the heart and functions heart movements
-Cells are striated and branched, joining end-to-end which forms intricate networks
-Each cardiac muscle cell contains a single nucleus and where it touches another cell is a specialized intercellular junction called an intercalated disc |
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Definition
-Basic cell of nervous tissue
-Function as responding to changes in their surroundings by transmitting nerve impulses along axons to others or to muscles or glands |
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Definition
| -Specialized cells of the nervous system that support and bind the components of nervous tissue, carry on phagocytosis, produce myelin, communicate between cells, maintain the ionic environment, and nurture the differentiation of neurons |
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Definition
| -Groups of similar cells that perform a specialized function |
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