Term
|
Definition
| Accumulate their products but only just beneath the free surface. |
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Term
|
Definition
| Accumulate their products within them until they rupture. Entire secretory cell ruptures, releasing secretions and dead cell fragments. |
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Term
|
Definition
| Secrete their products by exocytosis as they are produced. |
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Term
|
Definition
| Makes and secretes an aqueous fluid. |
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Term
|
Definition
Resembles stratified squamous and stratified cuboidal.
Basal cells - cuboidal or columnar
Surface cells - dome-shaped or squamous like.
Function: stretches for contained urine.
Location: Ureters, bladder and urethra. |
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Term
| Stratified Squamous Epithelium |
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Definition
Thick membrane with several cell layers. Basal cells cuboidal or columnar and metabolically active. In keratinzed type: dead surface cells.
Function: Protection of organ tissues.
Location: Nonkeratinized in esophagus, mouth and vagina. Keratinized in epidermis of skin. |
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Term
| Pseudostratified Columnar Epithelium |
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Definition
Single layer of cells with differing heights.
Function: Secretion, primarily of mucus.
Location: Nonciliated located in sperm-carrying ducts. Ciliated in trachea, and upper respiratory tract. |
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Term
| Simple Columnar Epithelium |
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Definition
Single layer of tall cells, may contain goblet cells.
Function: Absorption, secretion of mucus and other things
Location: digestive tract, glands, uterus |
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Term
| Simple Cuboidal Epithelium |
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Definition
Single layer of cubelike cells
Function: Secretion and absorption
Location: kidneys, ducts of small glands, ovaries |
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Term
| Simple Squamous Epithelium |
|
Definition
Single layer of flat cells
Function: Allows passage of materials by filtration and diffusion.
Location: kidneys, lungs, lining of heart, blood vessels, and lymphatic vessels. |
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Term
| Epithelial Tissue Functions |
|
Definition
Protection
Absorption
Filtration
Secretion
Gas Exchange |
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Term
| Three Embryonic Germ Layers |
|
Definition
Ectoderm
-epidermis of skin, nervous system
Endoderm
-functional lining of digestive, respiratory tract, accessory organs and glands
Mesoderm
-skeletal, muscular, and circulatory systems |
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Term
|
Definition
| Most abundant and widely distributed tissue type |
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Term
| 4 Classes of Connective Tissue |
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Definition
| Connective tissue proper, cartilage, bone, blood |
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Term
| Characteristics of Connective Tissue |
|
Definition
| Diverse cell types, diverse vascularity, no free surfaces |
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Term
|
Definition
| Common embryonic tissue from which all connective tissues arise. |
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Term
|
Definition
Strongest and most abundant type
Provides high tensile strength |
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Term
|
Definition
| Networks of long, thin, elastin fibers that allow for stretch |
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Term
|
Definition
| Short, fine, highly branched collagenous fibers |
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Term
|
Definition
| Young, actively mitotic cell that forms the fibers of connective tissue |
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|
Term
| Major Functions of Connective Tissue |
|
Definition
Binding and support
Protection
Insulation
Transportation (blood)
Absorb shock
Stores energy
Immunity |
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Term
| Loose Connective Tissue subtypes |
|
Definition
| Areolar, Adipose, Reticular |
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|
Term
| Dense Connective Tissue subtypes |
|
Definition
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Term
| Connective tissue proper: loose connective tissue, areolar |
|
Definition
Gel-like matrix with all 3 fiber types; cells: fibroblasts,
macrophages, mast cells, and some
white blood cells
Functions: Cushions organs; helps in inflammation; holds tissue fluid
Location: Widely distributed under
epithelia of body |
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Term
| Connective tissue proper: loose connective tissue, adipose |
|
Definition
Matrix as in areolar,
but very sparse; closely packed
adipocytes
Functions: Provides reserve food
fuel; insulates against heat loss;
supports and protects organs.
Location: Under skin in the
hypodermis; around kidneys and
eyeballs; within abdomen; in breasts |
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Term
| Connective tissue proper: loose connective tissue, reticular |
|
Definition
Network of reticular
fibers in a typical loose ground
substance; reticular cells lie on the
network.
Functions: Fibers form a soft internal
skeleton (stroma) that supports other
cell types including white blood cells,
mast cells, and macrophages
Location: Lymphoid organs (lymph
nodes, bone marrow, and spleen). |
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Term
| Connective tissue proper: dense connective tissue, dense regular |
|
Definition
Primarily parallel
collagen fibers; a few elastic fibers;
major cell type is the fibroblast.
Function: Attaches muscles to
bones or to muscles; attaches bones
to bones; withstands great tensile
stress when pulling force is applied
in one direction.
Location: Tendons, most
ligaments, aponeuroses. |
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Term
| Connective tissue proper: dense connective tissue, dense irregular |
|
Definition
Description: Primarily
irregularly arranged collagen
fibers; some elastic fibers;
major cell type is the fibroblast.
Function: Able to withstand
tension exerted in many
directions; provides structural
strength.
Location: Fibrous capsules of
organs and of joints; dermis of
the skin; submucosa of
digestive tract. |
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Term
|
Definition
Hyaline
Elastic
Fibrocartilage |
|
|
Term
|
Definition
Similar to hyaline
cartilage, but more elastic fibers
in matrix.
Functions: Maintains the shape
of a structure while allowing
great flexibility.
Location: External ear, epiglottis |
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Term
|
Definition
Matrix similar to
but less firm than that in hyaline
cartilage; thick collagen fibers
predominate.
Functions: tensile strength with the ability to absorb compressive shock |
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Term
|
Definition
Hard, calcified
matrix containing many collagen
fibers; osteocytes lie in lacunae.
Very well vascularized.
Functions: Supports and protects; act as levers for muscles; cell formation in marrow |
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Term
|
Definition
Detects changes in both the internal and external environment
Receives, transmits, and integrates impulses
Homeostasis |
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