Exam 1: Histology Pictures

Description: single layer or flattened cells with disc-shaped central nuclei and sparse cytoplasm.Simple of the epithelia.
Functions: allows materials to pass by diffusion and filtration in sites where protection is not imp.
Location: kidney, air sacs lungs, lining of heart

Description: single layer of cubelike cells with large, spherical central nuclei
Function: secretion and absorption
Location: kidney tubules, ducts and secretory portions of small glands, ovary surface

Description: single layer of talls cells with round oval nuclei
Function: Absorption; secretion of mucus enzymes and other substances
Location: Digestive tract

Description: single layer of cells of differing heights, some not reaching the free surface.
Function: secrete substances, particularly mucus
Location: upper respiratory tracts, lines th trachea, sperm-carrying ducts.

Description: thick membrane composed of several cell layers
Function: protects underlying tissues in areas subjected to abrasion
Location: esophagus, mouth and vagina.

Description: basal cells cuboidal and columnar
Function: stretches readily,permits stored urine to distend urinary organ
Location: lines the ureters, bladder and part of the urethra

Description: gel-like matrix with all three fiber types; fibroblast, macrophages,mast cells and some white cells.
Function: wraps and cushions organs
Location: under epithelia of body.

Description: matrix as in areolar, but very sparse
Function: provides reserve food fuel
Location: under skin, around kidneys and eyeball, abdomen and breast

Description: loose network of reticular fibers in a gel-like ground substance
Function: fibers form a soft internal skeleton that supports other cells types including white blood cells, mast cells, and macrophages.

Description: few elastic fibers
Function: attaches muscles to bones or to muscles
Location: tendons, most ligaments, aponeuroses

description: some elastic fibers
Function: withstands tension exerted in many directions
Location; organs and joints, dermis of skin, submucosa of digestive tract.

description: containing high portion of elastic fibers
Functions: allows tissue to recoil after stretching maintaining pulsatile flow of blood through arteries
Location: walls of large arteries.

Function: supports and reinforces
Location: embryonic skeleton, costal cartilages of the ribs, trachea and larynx.

Function: Maintains the shape of a structure while allowing great flexibility
Location: support external ear

Function: tensile strength allows it to absorb compressive shock
Location: intervertebral discs, knee joint

Function: supports and protects
Locations: bones

function; transport respiratory gases, nutrients, wastes, and other substances.
Location: contained within blood vessels

Function: voluntary movement
Location: in skeletal muscles attached to bones or occasionally to skin

Function: as it contracts it propels blood into the circulation.
Location: the walls of the heart.

Function: propels substances or objects along internal passageways. (foodstuffs, urine, baby)
Location: mostly in the walls of hollow organs

Function: Neurons transmit electrical signals form sensory receptors and to effectors
Location: brain, spinal cord and nerves