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Modes of Secretionof exocrine glands
Secretory cells of exocrine glands release their products into ducts in three different ways. The mode of secretion can be classified as merocrine, apocrine, or holocrine.
Cells that secrete products via the merocrine method form membrane-bound secretory vesicles internal to the cell. These are moved to the apical surface where the vesicles coalesce with the membrane on the apical surface to release the product. Most glands release their products in this way.
In those glands that release product via the apocrinemethod, the apical portions of cells are pinched off and lost during the secretory process. This results in a secretory product that contains a variety of molecular components including those of the membrane. Mammary glands release their products in this manner.
The third type of secretory release, holocrine, involves death of the cell. The secretory cell is released and as it breaks apart, the contents of the cell become the secretory product. This mode of secretion results in the most complex secretory product. Some sweat glands located in the axillae, pubic areas, and around the areoli of the breasts release their products in this manner. Sebaceous glands also are of this type.
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Are endocrine and exocrine glands classified as epithelium because they develop from epithelial membranes?
Yes, endocrine and exocrine glands are classified as epithelium because they are derived from epithelial cells during development. These glands maintain an epithelial lining even after they have differentiated into glandular tissue.
What statements regarding endocrine glands is NOT true?
One incorrect statement about endocrine glands is that they do not secrete hormones into the bloodstream. Endocrine glands are specialized tissues that release hormones directly into the bloodstream to regulate various bodily functions, including metabolism, growth, and reproduction.
True or Flase The pituitary gland hormones stimulate the other endocrine glands to produce their hormones?
True. The pituitary gland secretes various hormones that stimulate other endocrine glands in the body to produce and release their own hormones, which help regulate various physiological functions in the body.
What characteristics distinguish a small spider with 6 legs from other arachnids?
A small spider with 6 legs is likely a different species called a harvestman, which is not a true spider. Harvestmen have a distinct body shape and lack venom glands, silk glands, and spinnerets that true spiders have. Additionally, harvestmen have a single body segment, while true spiders have two.
The thyroid gland is unique because it stores the hormones it produces true or false?
True. The thyroid gland is unique because it is one of the few glands that can store the hormones it produces. This allows for a continuous supply of hormones to be released into the bloodstream as needed.
Are endocrine and exocrine glands classified as epithelium because they develop from epithelial membranes?
Yes, endocrine and exocrine glands are classified as epithelium because they are derived from epithelial cells during development. These glands maintain an epithelial lining even after they have differentiated into glandular tissue.
Can a sebaceous glands kill bacteria?
true! Sebaceous glands, that produce this waxy oily secretion called SEBUM which lubricates the hair shaft and inhibits bactirial growth withing the surrounding area.
What statements regarding endocrine glands is NOT true?
One incorrect statement about endocrine glands is that they do not secrete hormones into the bloodstream. Endocrine glands are specialized tissues that release hormones directly into the bloodstream to regulate various bodily functions, including metabolism, growth, and reproduction.
What do glandes in the stomach produce?
produces fluid
Endocrine glands are ductless true or false?
True. Endocrine glands are ductless glands that release hormones directly into the bloodstream to regulate various bodily functions.
Aldosterone stimulates the reabsorption of sodium while enhancing potassium secretion?
true
Is tubular secretion effective in controlling blood pH?
True!
Are hormonal targets distant from secretion in the endocrine system?
true
What is true regarding apocrine sweat glands?
These glands produce a fluid that mixes with sebum.
Is this true if saliva secreted into mouth?
Yes. It is true that various salivary glands like parotid, submandibular and sublingual salivary glands secretes saliva in the mouth.
True or False. Endocrine glands secrete their products into ducts that empty onto a surface or a cavity?
False. Endocrine glands are ductless glands
What are Aprocrine glands?
Apocrine glands are the small coiled glands in human skin that we call sweat glands However they are not 'true' sweat glands as seen in the majority of animals but they are excretory glands that regulate fluid and mineral excretions. Other animals with apocrine glands functioning in the same manner as in human skin tend to have a common evolutionary past; they all lived in water for extended periods of time. Examples and further fun information can be researched using books such as the Descent of Woman by Elaine Morgan.http://en.wikipedia.org/wiki/Elaine_Morgan_%28writer%29
