Shared Flashcard Set

Details

Lecture 5
Tissues
63
Anatomy
Undergraduate 1
02/16/2012

Additional Anatomy Flashcards

 


 

Cards

Term
Tissues
Definition
Composed of cells with similar structures and/or functions.
Term
Ground substance
Definition
A semi-fluid gel composed of dissolved proteins, carbohydrates, and embedded protein fibers.
Term
Collagen
Definition
this is the most abundant protein (about 25% of all protein) in the body. These fibers are tough, flexible, and resist stretching forces.
Term
Elastin
Definition
this protein is coiled and is not only flexible and stretchable (extensible), but is elastic as the name implies.
Term
Reticular
Definition
branched proteins that form a network for supporting organs and tissues.
Term
embedded protein fibers
Definition
Three types:
-Collagen
-Elasten
-Reticular
Term
Epithelial tissue
Definition
composed primarily of cells with little extracellular matrix associated with them.
Term
Four basic types of tissues
Definition
-Epithelial
-Connective
-Muscle
-Nervous
Term
Cutaneous membrane
Definition
derived from ectoderm. It forms the epidermis of the skin and all the derived epidermal structures such as hair, nails, and specialized glands.
Term
Serous membranes
Definition
derived from mesoderm. They form the lining and covering of organs and structures that do not open to the outside. They produce a watery fluid (serous fluid) that is secreted from the blood that acts as a lubricant to reduce friction.
Term
visceral layer
Definition
contacts the surface of the organ
Term
parietal layer
Definition
lines a cavity and does not contact the organ
Term
serous cavity
Definition
contains the serous fluid
Term
Pericardium
Definition
membrane that protects the heart and secretes pericardial fluid
Term
Pleurae
Definition
membrane that protects the lungs and secretes pleural fluid
Term
Peritoneum
Definition
membrane that protects many of the organs of the abdominoplevic cavity and secretes peritoneal fluid
Term
Mucous membranes
Definition
form the lining of organs and structures that open to the outside of the body
Term
Connective tissue
Definition
Three basic types:
-Typical
-Cartilage
-Specialized
Term
extracellular matrix
Definition
non-cellular materials produced by cells through the process of secretion
Term
Basolateral surface
Definition
One of the two distinct celleular regions of epithelial tissues.
Term
apical surface
Definition
One of the two distinct celleular regions of epithelial tissues. Makes up the free uppper layer.
Term
Lateral surfaces
Definition
Regions where epithelial cells contact each other and are joined by various intercellular junctions
Term
Basal surface
Definition
Region of epithelial tissue that sits upon a layer of specialized extracellular matrix called the basement membrane
Term
basement membrane
Definition
contacts and connects epithelial tissue with an underlying layer of connective tissue
Term
squamous cells
Definition
Flattened cells commonly associated with tissues involved in diffusion of molecules.
Term
cuboidal cells
Definition
Cube-shaped cells commonly associated with tissues involved in producing glandular secretions.
Term
columnar cells
Definition
These cells are commonly associated with tissues involved in absorption of molecules.
Term
pseudostratified ciliated cells
Definition
These cells are also commonly associated with tissues involved in lining mucous membranes.
Term
Transitional cells
Definition
the plasma membrane of the free surface is highly folded in cells with low water content, but become bulbous when hydrated.
Term
Loose connective tissue
Definition
all three fiber types dominated by collagen fibers; also known as areolar c.t.; highly vascularized and innervated.
Term
Dense connective tissue
Definition
dominated by dense bands of collagen fibers; the irregular form is also known as fibrous c.t; regular forms occur in many ligaments and tendons.
Term
Adipose connective tissue
Definition
commonly known as 'fat', the adipocytes vary in size depending on their distribution throughout the body.
Term
Hyaline cartilage
Definition
-found on joint surfaces, trachea, fetal skeleton
-function: support
Term
Fibrocartilage
Definition
-found in intertebral disks, symphysis pubis, menisci
-function: support, withstands compression
Term
Elastic cartilage
Definition
-in outer ear, auditory canal
-function: flexibility and strength
Term
Bone
Definition
hard matrix with large amounts of collagen fibers and calcium phosphate minerals
Term
Blood
Definition
liquid matrix derived from red marrow of bone
Term
Lymph
Definition
liquid matrix formed as excess fluid in the ECF
Term
Muscle tissue
Definition
primarily cellular with some associated matrix. Among its features are the abilities to contract and stretch
Term
Nervous tissue
Definition
primarily cellular with some associated matrix. Among its features is the ability of certain cells called neurons to conduct electrical impulses.
Term
neurons
Definition
Type of nervous tissue.
(conducting cells)
Term
neuroglia
Definition
Type of nervous tissue.
(support cells)
Term
Epithelium
Definition
-Covers body/organ surfaces
-Lines body cavities
-Forms glands
Term
Connective tissue
Definition
Binds/supports/protects other tissues and organs
Term
Muscle tissue
Definition
Moves body/materials within body
Term
Nervous tissue
Definition
Makes up the nervous system
Term
Characteristics of epithelia
Definition
-highly cellular
-has a free surface (apical surface)
-bound to underlying tissue by a basement membrane
-avascular (does not have a direct blood supply)
-highly regenerative and rapid turnover of cells
Term
Simple columnar epithelium
Definition
-tall, rectingular-shaped cells
-microvilli
-goblet cells
Term
Pseudostratisfied columnar epithelium
Definition
-cells are columnar, irregularly shaped
-some kinds have cilia
-goblet cells
Term
Simple cuboidal epithelium
Definition
Single layer of cube-shaped cells
Term
Simple squamous epithelium
Definition
One layer of flattened cells
Term
Stratisfied squamous epithelium
Definition
-upper layers of cells are flattened, lower layers appear cuboidal
-
Term
Transitional epithelium
Definition
-found in most of the urinary tract
-some cells are bi-nucleated
-withstands stretching and relaxing of bladder
Term
Glandular epithelia
Definition
-epithelium that has excretory functions
-
Term
Connective tissue
Definition
Consists of:
-cells
-fibers (collagen, elastin, reticular)
-ground substance (carbohydrates)
Term
Compact bone tissue
Definition
-dense
-outer shell of bone
Term
Spongy bone tissue
Definition
-cancellous
-inner-latice work of bone
-houses hemopoietic tissue
Term
skeletal muscle tissue
Definition
-long, cylindrical cells
-multinuleated
-nuclei located at periphery of cell
-striated
Term
Cardiac muscle tissue
Definition
-short, cylindrical cells
-some cells are bifurcated (branching)
-has one or TWO centrally-located nuclei
-intercalated disks
-striations
Term
Smoothe (visceral) muscle tissue
Definition
-spindle-shaped cells
-one centrally-located nucleus
Term
Neuroglia (glial cells)
Definition
-support
-protection
-nutrition
Term
Neurons
Definition
-sensory
-motor
-association
Term
Goblet cells
Definition
Simple, unicellular glands that produce mucus
Supporting users have an ad free experience!