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Living Tissue
116-128
21
Anatomy
Undergraduate 1
11/11/2012

Additional Anatomy Flashcards

 


 

Cards

Term
Nervous Tissue
Definition
Tissue Type -- Internal Communication - Brain, Spinal Cord, Nerves
Term
Muscle Tissue
Definition
Tissue Type -- Contracts to cause movement - Muscles attached to bones (Skeletal), Muscles of heart (Cardiac), Muscles of walls of hollow organs (Smooth).
Term
Epithelial tissue
Definition
Tissue Type -- Forms boundaries between different environments, protects, secretes, absorbs, filters - Lining of digestive tract organs and other hollow organs, Skine surface (Epidermis) --- Avascular (No blood vessels) and Innervated (Supplied by nerve fibers)
Term
Connective Tissue
Definition
Tissue Type -- Supports, protects, binds other tissues together - Bones, Tendons, Fat and other soft padding tissue.
Term
Tissue
Definition
Groups of woven cells that are similar in structure and perform a common or related function.
Term
Histology
Definition
The Study of Tissues
Term
Apical Surface
Definition
(All epithelia have) Upper free surface exposed to the body exterior or the cavity of an internal organ, and a lower attached basal surface.
Term
Apical vs Basal
Definition
The two surfaces differ in both structure and function. For this reason, we say that epithlia exhibit apical-basal polarity.
Term
Microvilli
Definition
Fingerlike extensions of the plasma membrane
Term
Basal Lamina
Definition
Adjacent to the basal surface of an epithelium, thin supporting sheet. Noncellular, adhesive sheet consists largely of glycoproteins secreted by the epithelial cells plus some fine collagen fibers. Acts as a selective fiber that determines which molecules diffuse from the underlying connective tissue.
Term
Reticular Lamina
Definition
Layer of extracellular material containing a fine network of collagen protein fibers that belongs to the underlying connective tissue
Term
Basement Membrane
Definition
Basal Lamina and Reticular Lamina form this.
Term
Gland
Definition
Consists of one or more cells that make and secrete a particular product.
Term
Secretion
Definition
Product of a gland -- Aqueous (Water-based) fluid that usually contains proteins, but there is variation. Ex - Some glands release lipid of steroid rich secretion.
Term
Endocrine
Definition
Eventually lose their ducts, ductless glands -- Produce hormones. Most are stucturally diverse, commonly compact multicellular organs.
Term
Exocrine 
Definition
Secrete onto the body surgace or into body cavities. Unicellular glands do so directly (by exocytosis). Multicellular do so via an epithelium-walled duct that transports the secretion to the epithelial surface.
Term
Unicellular Exocrine Glands
Definition
Mucous cells and goblet cells. Produce mucin.
Term
Mucin
Definition
A complex glycoprotein that dissolves in water when secreted.
Term
Multiccellular Exocrine Glands
Definition
Structurally more complex. Two basic parts -- An epithelium-derived duct and a secretory unit (Acinus)
Term
Secretory unit
Definition
Surrounded by supportive connective tissue and supplies it with blood vessels and nerve fibers. Forms a fibrous capsul that extends into the gland and divides it into lobes.
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