glands are classified according to their...
- function based structure
structure of glands includes...
- Unicellular—glands are scattered in the epithelial tissue
- multicellular-forms multi cellular lined pouches in the epithelial tissue
function based structure includes...
- Exocrine –with ducts..typically flow onto the free surface of the covering epithelium, using tube like duct.
- Endocrine Glands—without ducts
what are ex. of exocrine glands and their secretions..
- *sweat, skin oil, ear wax & digestive enzymes
- * mammary gland- milk
- * Sudoriferous (sweat glands)- perspiration
- *sebaceous gland-oil
- * salivary glands- secretes mucus and digestive enzymes.
- * Lacrimal gland-tears
what are the types if secretions..
- Serous glands-produce thin, watery secretions such as sweat, milk, tears and digestive juices
- Mucous glands- produce mucin that absorbs water to form a sticky secretion called mucus
- Mixed glands contain which contain both cell types
- Cytogenic glands-release whole cells such as sperm and egg cells
3 types a gland can be..
branched acinar glands rupture and disintegrate (dies) to deliver their accumulated secretory product. They are then replaced.
Sebacous (oil-producing) glands of the scalp
release their product by exocytosis through simple coiled tubular glands
Non odorous (order less) body sweat glands,tears, gastric glands, saliva pancreas, etc.
most are exocrine glands
secrete parts of the apical surface with the secretion.... mixture of sweat and oil.. the tip of the cell bursts
simple tubular odorous armpit sweat glands
smelly armpits and smelly pussy/dick
Compund Acinar mammary glands
usually compact, multicellular secretion flow directly from the cell to the extracellular fluid and which then diffuses into the blood stream without ducts
are called hormones
endocrine glands are, pituitary, thyroid, parathyroid, adrenal, pineal are all examples of what gland ?