• Glands
• Glands
– Exocrine
• Glands
– Exocrine: secretion into a body cavity
• Glands
– Exocrine: secretion into a body cavity or onto a body surface
• Glands
– Exocrine: secretion into a body cavity or onto a body surface
o Examples:
• Glands
– Exocrine: secretion into a body cavity or onto a body surface
o Examples: Serous
• Glands
– Exocrine: secretion into a body cavity or onto a body surface
o Examples: Serous Mucous
• Glands
– Exocrine: secretion into a body cavity or onto a body surface
o Examples: Serous Mucous Sweat
• Glands
– Exocrine: secretion into a body cavity or onto a body surface
• Glands
– Exocrine: secretion into a body cavity or onto a body surface
– Endocrine
• Glands
– Exocrine: secretion into a body cavity or onto a body surface
– Endocrine: secretion into the ECF
• Modes of secretion
• Modes of secretion
– Merocrine
• Modes of secretion
– Merocrine: secretion by exocytosis
• Modes of secretion
– Merocrine: secretion by exocytosis
– Apocrine
• Modes of secretion
– Merocrine: secretion by exocytosis
– Apocrine: secretion by loss of cytoplasm
• Modes of secretion
– Merocrine: secretion by exocytosis
– Apocrine: secretion by loss of cytoplasm
– Holocrine
• Modes of secretion
– Merocrine: secretion by exocytosis
– Apocrine: secretion by loss of cytoplasm
– Holocrine: secretion through loss of entire cell
• Exocrine Gland Structure
• Exocrine Gland Structure
– Unicellular
e.g. Goblet cell
• Exocrine Gland Structure
– Unicellular
• Exocrine Gland Structure
– Unicellular
– Multicellular
• Exocrine Gland Structure
– Unicellular
– Multicellular
• Secretory sheets
• Exocrine Gland Structure
– Unicellular
– Multicellular
• Secretory sheets
• Tubular
• Exocrine Gland Structure
– Unicellular
– Multicellular
• Secretory sheets
• Tubular
• Alveolar (Acinar)
• Exocrine Gland Structure
– Unicellular
– Multicellular
• Secretory sheets
• Tubular
• Alveolar (Acinar)
• Tubuloalveolar
• Exocrine Gland Structure
– Unicellular
– Multicellular
• Secretory sheets
• Tubular
• Alveolar (Acinar)
• Tubuloalveolar
Secrete into ducts
• Exocrine Gland Structure
– Unicellular
– Multicellular
• Secretory sheets
• Tubular
• Alveolar (Acinar)
• Tubuloalveolar
• Membranes
• Membranes
– Mucous membranes
• Membranes
– Mucous membranes (mucosa)
• Membranes
– Mucous membranes (mucosa): line cavities that communicate with the exterior
• Membranes
– Mucous membranes (mucosa): line cavities that communicate with the exterior
– Serous membranes
• Membranes
– Mucous membranes (mucosa): line cavities that communicate with the exterior
– Serous membranes (serosa)
• Membranes– Mucous membranes
(mucosa): line cavities that communicate with the exterior
– Serous membranes (serosa): line internal cavities
• Membranes– Mucous membranes
(mucosa): line cavities that communicate with the exterior
– Serous membranes (serosa): line internal cavities
– Synovial membranes
• Membranes– Mucous membranes
(mucosa): line cavities that communicate with the exterior
– Serous membranes (serosa): line internal cavities
– Synovial membranes: line synovial cavities