Section 1
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simple squamous epithelium
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Cards (81)
Section 1
(50 cards)
simple squamous epithelium
single layer of flattened cells resting on a basement membrane, air sacs of the lungs
hyaline cartilage
Most common type of cartilage; it is found on the ends of long bones, ribs, and nose
Fibrocartilage
cartilage that contains fibrous bundles of collagen, such as that of the intervertebral disks in the spinal cord.
cutaneous membrane
The skin; composed of epidermal and dermal layers
nervous tissue
A body tissue that carries electrical messages back and forth between the brain and every other part of the body.
bone
Dense, hard connective tissue composing the skeleton
extracellular matrix
a collection of extracellular molecules secreted by cells that provides structural and biochemical support to the surrounding cells.
pseudostratified columnar epithelium
tissue that consists of a single layer of irregularly shaped and sized cells that give the appearance of multiple layers; found in ducts of certain glands and the upper respiratory tract
blood connective tissue
fluid extracellular matrix used to transport substances throughout the body.
subcutaneous tissue (hypodermis)
Tissue, largely fat, that lies directly under the dermis and serves as an insulator of the body.
Epidermis
Outer layer of skin
Epithelial functions
protection, absorption, filtration, secretion
characteristics of connective tissue
Vascularized- good blood supply Solid extracellular protein fibers Fluid extracellular ground substance
epithelial cell characteristics
skin cells that cover the outside of the body and line the internal surfaces of organs, fit closely together to form sheets has an apical surface- an upper free surface exposed to the body exterior or the cavity of an internal organ basement membrane- a thin, delicate membrane of protein fibers and glycosaminoglycans separating an epithelium from underlying tissue Avascular- without blood vessels Regenerate easily
stratified cuboidal epithelium
Function: protection Location: Largest ducts of sweat glands, mammary glands, and salivary glands.
stratified squamous epithelium
Function: protects underlying tissues in areas subject to abrasion Location: esophagus, mouth, vagina, skin
Keratin
hard protein material found in the epidermis, hair, and nails
epithelial membranes
cutaneous, mucous, serous
adipose tissue
collection of fat cells
stratified columnar epithelium
Function: protection and secretion Location: rare in the body; small amounts in male urethra and in large ducts of some glands
simple columnar epithelium
Function: Absorption; secretion of mucus, enzymes, and other substances; ciliated type propels mucus (or reproductive cells) by ciliated action. Location: nonciliated type lines most of the digestive tract (stomach to anal canal), gallbladder and excretory ducts of some glands; ciliated variety lines small bronchi, uterine tubes, and some regions of the uterus.
cuboidal cells
cube shaped cells
tissue repair
the process that replaces worn out, damaged, or dead cells 1. inflammation 2. granulation 3. regeneration
endocrine glands
glands that secrete chemicals called hormones directly into the bloodstream
dense fibrous connective tissue
provides great strength through parallel bundles of collagenic fibers; found in tendons
Cartilage
A connective tissue that is more flexible than bone and that protects the ends of bones and keeps them from rubbing together.
skeletal muscle
A muscle that is attached to the bones of the skeleton and provides the force that moves the bones.
glandular epithelium
Composed of cells specialized to produce and secrete substances into ducts or into body fluids
Tendons
attach muscle to bone
simple epithelium
single layer of cells
simple cuboidal epithelium
Function: secretion and absorption Location: Kidney tubules; ducts and secretory portions of small glands, ovary surface.
exocrine glands
secrete chemical substances into ducts that lead either to other organs or out of the body ex. sweat and oil glands, liver, and pancreas
transitional epithelium
function: stretches readily and permits distension of urinary organ by contained urine Location: lines the ureters, urinary bladder, and part of the urethra
squamous cells
flattened and scale-like
columnar cells
tall and column shaped
synovial membrane
The lining of a joint that secretes synovial fluid into the joint space.
connective tissue
A body tissue that provides support for the body and connects all of its parts
stratified epithelium
several layers of cells
serous membrane
made by simple squamous epithelium, a thin layer of tissue that covers internal body cavities and secretes a fluid that keeps the membrane moist; also called serosa
areolar connective tissue
Function: wraps and cushions organs Location: widely distributed under epithelia of body
Dermis
Inner layer of skin
loose connective tissue
areolar, adipose, reticular
cardiac muscle
Involuntary muscle tissue found only in the heart.
Ligaments
Connect bone to bone
connective tissue membranes
composed exclusively of various types of connective tissue; no epithelial cells are present in this type of membrane
mucous membrane
Membrane that secretes mucus that lubricates the surface of organs and keeps them moist.
smooth muscle
Involuntary muscle found inside many internal organs of the body
integumentary system
Consists of the skin, mucous membranes, hair, and nail
reticular fibers
Fibers made of collagen fibers that are very thin and branched. Forma tightly woven fabric that joins connective tissue to adjacent tissues. Spleen, lymphnodes, bone marrow
elastic cartilage
cartilage with abundant elastic fibers; more flexible than hyaline cartilage
Section 2
(31 cards)