4 a&p

forms membranes

supports & reinforces body organs

cells of this tissue may absorb or secrete substances

forms exocrine & endocrine glands

surrounds and cushions body organs

characterized by large amounts of extra cellular material

6 major functions of epithelial tissue

6 characteristics of epithelial tissue

lines most of intestines

lines inside of mouth

lines much of respiratory tract

endothelium

lines urinary bladder

in glands and ducts of glands

protection from abrasion

diffusion

propel mucus

stretches

absorption, secretion

one or more cells that make and secrete a product

secrete product onto body surface or into body cavity 

secrete product into interstial space and product (hormone) enters blood or lymph

Exocrine glands are classified functionally as:

Most exocrine glands are:

________ glands store secretions until the whole cell ruptures

sweat glands are examples of _______ glands

______ glands release secretions by exocytosis.

has a duct to carry secretions

examples: thyroid & adrenal

more numerous of the two glands

secrete hormones directly into blood to be carried to target organ

example is pancreas as it produces digestive enzymes

parallel bundles of collagen fibers; forms tendons and ligaments

stores fat

dermis of skin

under epithelial tissue; contains many fibers and cell types

forms embryonic skeleton; covers surface of long bones

insulates body

firm matrix, milky white and glassy, contains much water

parallel collagen fibers in cartilage found in intervertebral discs

soft "skeleton" or framework for some organs including lymph nodes

external ear and epiglottis

embryonic tissue that give rise to all connective

in areolar ct, engulf cellular debris

composed of ground substance and fibers

cells that maintain matrix in cartilage

tough protein fibers that resists longitudinal tearing 

in aerolar ct; contain histamine