Term
|
Definition
simple squamous epithelium
function: allows passage of materials by diffusion and filtration where protection is not important; secretes lubricating substances in serosa
location: kidney glomeruli; air sacs of lungs; lining of heart, blood vessels, lymphatic vessels; serosae |
|
|
Term
|
Definition
simple cuboidal epithelium
function: secretion and absorption
location: kidney tubules; ducts and secretory portions of small glands; ovary surface |
|
|
Term
|
Definition
simple columnar epithelium
function: absorption; secretion of mucus, enzymes, and other substances; ciliated type propels mucus (or reproductive cells) by ciliary action
location: nonciliated types line most of the digestive tract (stomach to anal canal), gall bladder, and excretory ducts of some glands; ciliated variety lines small bronchi, uterine tubes, and some regions of the uterus |
|
|
Term
|
Definition
pseudostratified columnar epithelium
function: secretion, particularly of mucus; propulsion of mucus by ciliary action
location: nonciliated type in male's sperm-carrying ducts and ducts of large glands; ciliated variety lines the trachea, most of the upper respiratory tract |
|
|
Term
|
Definition
stratified squamous epithelium
function: protects underlying tissues in areas subject to abrasion
location: nonkeratinized type forms the moist linings of the esophagus, mouth, and vagina; keratinized variety forms the epidermis of the skin, a dry membrane |
|
|
Term
|
Definition
stratified cuboidal epithelium
function: protection
location: largest ducts of sweat glands, mammary glands, and salivary glands |
|
|
Term
|
Definition
stratified columnar epithelium
function: protection; secretion
location: rare in the body; small amounts in male urethra and in large ducts of some glands |
|
|
Term
|
Definition
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 |
|
|
Term
|
Definition
embryonic connective tissue: mesenchyme
function: gives rise to all other connective tissue types
location: primarily in embryo |
|
|
Term
|
Definition
loose connective tissue, areolar
function: wraps and cushions organs; its macrophages phagocytize bacteria; plays important role in inflammation; holds and conveys tissue fluid
location: widely distributed under epithelia of body; packages organs; surrounds capillaries |
|
|
Term
|
Definition
loose connective tissue, adipose
function: provides reserve fuel; insulates against heat loss; supports and protects organs
location: under skin; around kidneys and eyeballs; within abdomen; in breasts |
|
|
Term
|
Definition
loose connective tissue, reticular
function: 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) |
|
|
Term
|
Definition
dense connective tissue, dense regular
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 |
|
|
Term
|
Definition
dense connective tissue, elastic
function: allows recoil of tissue following stretching; maintains pulsatile flow of blood through arteries; aids passive recoil of lungs following inspiration
location: walls of large arteries; within certain ligaments associated with the vertebral column; within the bronchial tubes |
|
|
Term
|
Definition
dense connective tissue, dense irregular
function: able to withstand tension exerted in many directions; provides structural strength
location: fibrous capsules of organs and joints; dermis of the skin; submucosa of digestive tract |
|
|
Term
|
Definition
cartilage, hyaline
function: supports and reinforces; has resilient cushioning properties; resists compressive stress
location: forms most of the embryonic skeleton; covers the end of long bones in joint cavities; forms costal cartilages of the ribs; cartilages of the nose, trachea, and larynx |
|
|
Term
|
Definition
cartilage, elastic
function: maintains the shape of a structure while allowing great flexibility
location: supports the external ear (pinna); epiglottis |
|
|
Term
|
Definition
cartilage, fibrocartilage
function: tensile strength with the ability to absorb compressive shock
location: intervertebral discs; pubic symphysis; discs of knee joint |
|
|
Term
|
Definition
bones (osseous tissue)
function: bone supports and protects (by enclosing); provides levers for the muscles to act on; stores calcium and other minerals and fat; marrow inside bones is the site for blood cell formation (hematopoiesis)
location: bones |
|
|
Term
|
Definition
blood
function: transport of respiratory gases, nutrients, wastes, and other substances
location: contained within blood vessels |
|
|
Term
|
Definition
nervous tissue
function: transmit electrical signals from sensory receptors and to effectors (muscles and glands) which control their activity
location: brain, spinal cord, and nerves |
|
|
Term
|
Definition
skeletal muscle
function: voluntary movement; locomotion; manipulation of the environment; facial expression; voluntary control
location: in skeletal muscles attached to bones or occasionally to skin |
|
|
Term
|
Definition
cardiac muscle
function: as it contracts, it propels blood into the circulation; involuntary control
location: the walls of the heart |
|
|
Term
|
Definition
smooth muscle
function: propels substances or objects (foodstuffs, urine, a baby) along internal passageways; involuntary control
location: mostly in the walls of hollow organs |
|
|
