Tissues of the Body Flashcards by Matt Quinn

Flashcards in Tissues of the Body Deck (10)

Loading flashcards...

Gland

Epithelial cell or collection of cells specialised for secretion

Exocrine

Glands with ducts

Endocrine

Ductless glands
Secrete into the blood stream

How to classify glads
Four methods

Destination of secretion
Structure of gland
Nature of secretion
Method of secretion

Destination

Exocrine -- ducts to epithelial tissue

Endocrine -- into blood stream

Structure of gland

1 -- secretory part
---- unicellular or multicellular
---- acinar (grape shape) or tubular
---- coiled or branched

2 -- duct system
--- simple gland (single duct)
---- complex gland (branched duct)

Branching ducts
Main > interlobular > intralobular > intercalary

Nature of secretion

1 -- mucous glands
--- secrete mucus
--- rich in mucins
--- stain poorly

2 -- serous glands
--- secrete watery enzymes
-- eosinphillic (pink)

Method of secretion

Merocrine
Apocrine
Holocrine

Merocrine

Basically exocytosis
1- membrane bound component approaches cell surface
2- fuses with plasma membrane
3- contents and in continuity with extra cellular space
4- membrane is achieved to maintain surface area

Apocrine

Has to get membrane from the plasma membrane
1- non-membrane bound structure approaches cell surface
2- makes contact and pushes up apical membrane
3- thin layer of apical cytoplasm drapes around droplet
4- membrane pinches off from cell
5- membrane replaced from cell

Tissues of the Body Flashcards Preview

From Flashcardlet > Tissues of the Body > Flashcards

Gland

Epithelial cell or collection of cells specialised for secretion

Exocrine

Glands with ducts

Endocrine

Ductless glands
Secrete into the blood stream

How to classify glads
Four methods

Destination of secretion
Structure of gland
Nature of secretion
Method of secretion

Destination

Exocrine -- ducts to epithelial tissue

Endocrine -- into blood stream

Structure of gland

1 -- secretory part
---- unicellular or multicellular
---- acinar (grape shape) or tubular
---- coiled or branched

2 -- duct system
--- simple gland (single duct)
---- complex gland (branched duct)

Branching ducts
Main > interlobular > intralobular > intercalary

Nature of secretion

1 -- mucous glands
--- secrete mucus
--- rich in mucins
--- stain poorly

2 -- serous glands
--- secrete watery enzymes
-- eosinphillic (pink)

Method of secretion

Merocrine
Apocrine
Holocrine

Merocrine

Basically exocytosis
1- membrane bound component approaches cell surface
2- fuses with plasma membrane
3- contents and in continuity with extra cellular space
4- membrane is achieved to maintain surface area

Apocrine

Has to get membrane from the plasma membrane
1- non-membrane bound structure approaches cell surface
2- makes contact and pushes up apical membrane
3- thin layer of apical cytoplasm drapes around droplet
4- membrane pinches off from cell
5- membrane replaced from cell

Decks in From Flashcardlet Class (1):

Key Links

Subjects

Company

Find Us

Brainscape's Knowledge GenomeTM

Tissues of the Body Flashcards Preview

From Flashcardlet > Tissues of the Body > Flashcards

Gland

Epithelial cell or collection of cells specialised for secretion

Exocrine

Glands with ducts

Endocrine

Ductless glandsSecrete into the blood stream

How to classify gladsFour methods

Destination of secretionStructure of glandNature of secretionMethod of secretion

Destination

Exocrine -- ducts to epithelial tissueEndocrine -- into blood stream

Structure of gland

1 -- secretory part ---- unicellular or multicellular ---- acinar (grape shape) or tubular ---- coiled or branched2 -- duct system --- simple gland (single duct) ---- complex gland (branched duct)Branching ducts Main > interlobular > intralobular > intercalary

Nature of secretion

1 -- mucous glands --- secrete mucus --- rich in mucins --- stain poorly2 -- serous glands --- secrete watery enzymes -- eosinphillic (pink)

Method of secretion

MerocrineApocrineHolocrine

Merocrine

Basically exocytosis1- membrane bound component approaches cell surface2- fuses with plasma membrane3- contents and in continuity with extra cellular space4- membrane is achieved to maintain surface area

Apocrine

Has to get membrane from the plasma membrane1- non-membrane bound structure approaches cell surface2- makes contact and pushes up apical membrane3- thin layer of apical cytoplasm drapes around droplet4- membrane pinches off from cell5- membrane replaced from cell

Key Links

Subjects

Company

Find Us

Brainscape's Knowledge Genome^TM

Ductless glands
Secrete into the blood stream

How to classify glads
Four methods

Destination of secretion
Structure of gland
Nature of secretion
Method of secretion

Exocrine -- ducts to epithelial tissue

Endocrine -- into blood stream

1 -- secretory part
---- unicellular or multicellular
---- acinar (grape shape) or tubular
---- coiled or branched

2 -- duct system
--- simple gland (single duct)
---- complex gland (branched duct)

Branching ducts
Main > interlobular > intralobular > intercalary

1 -- mucous glands
--- secrete mucus
--- rich in mucins
--- stain poorly

2 -- serous glands
--- secrete watery enzymes
-- eosinphillic (pink)

Merocrine
Apocrine
Holocrine

Basically exocytosis
1- membrane bound component approaches cell surface
2- fuses with plasma membrane
3- contents and in continuity with extra cellular space
4- membrane is achieved to maintain surface area

Has to get membrane from the plasma membrane
1- non-membrane bound structure approaches cell surface
2- makes contact and pushes up apical membrane
3- thin layer of apical cytoplasm drapes around droplet
4- membrane pinches off from cell
5- membrane replaced from cell