42 Questions
What is characteristic of simple glands?
Their ducts do not branch
What type of glands have saclike secretory portions?
Acinar glands
Which glands have several elongated, coiled secretory units and their ducts converge to form larger ducts?
Compound tubuloacinar glands
What is an example of a simple coiled tubular gland?
Sweat glands
Which glands have pure serous acini?
Parotid glands
What is characteristic of mixed glands?
They contain both serous and mucous acini
Which glands have multiple saclike secretory units with small ducts converge at a larger duct?
Compound acinar glands
What is the characteristic of branched acinar glands?
They have multiple secretory units that converge into larger ducts
What is the opposite of exocytosis?
Endocytosis
What is the purpose of the Golgi apparatus in cellular secretion?
To add sugars to proteins and lipids (Glycosylation)
What is the function of the cis face of the Golgi apparatus?
Incoming transport vesicle
What occurs at the trans face of the Golgi apparatus?
Outgoing secretory vesicle
What is the term for the permanent plasma membrane structures involved in exocytosis?
Norosomes
What is the term for the process in which material is transported across a cell?
Transepithelial transport
What is the function of condensation of contents in the Golgi apparatus?
Packaging of contents
What type of nerve releases Ach that joins to receptors on adrenal medulla?
Splanchnic nerve of the sympathetic N.S.
What is the fate of most Golgi products?
They are extruded in secretory vesicles
Which hormone stimulates the secretion of thyroxin from the thyroid gland?
TSH
What type of gland is the pancreas?
Mixocrine gland
What is the main mechanism controlling the secretion of Parathyroid Hormone (PTH)?
Negative feedback chemical mechanism
What is the function of the acinar cells in the pancreas?
Secreting digestive enzymes
What is the process by which proteins and lipids are processed in the Golgi?
Glycosylation
What is the name of the endocrine portion of the pancreas?
Islets of Langerhans
What is the term for the process by which glands secrete their products?
Merocrine
What type of cells are predominant in the Submandibular Salivary Glands?
Dense serous cells
What is the main division of epithelia?
Covering and secretory
What is the name of the ducts that open immediately posterior to the teeth, either side of the lingual frenulum?
Wharton's ducts
What type of glands secrete to the body surface or gut via duct systems?
Exocrine glands
What is the shape of the mucous cells in the Sublingual Salivary Glands?
Pyramidal
What is the characteristic of glands that maintain a connection with the surface epithelium?
Exocrine glands
What is the function of the secretion produced by the Sublingual Salivary Glands?
Buffering and lubrication
What is the name of the glands that are located in the floor of the mouth, within the mandibular groove?
Submandibular Salivary Glands
What is the characteristic of glands that lose their connection with the surface epithelium?
Endocrine glands
What is the characteristic of the serous cells in the Submandibular Salivary Glands?
They are dense and form acini and serous demilunes
What is the function of the duct system in glands?
To transport secretions to the surface
How do epithelial cells form glands during fetal development?
By proliferating and penetrating the underlying connective tissue
What is the name of the ducts that are associated with the Sublingual Salivary Glands?
Rivinus' ducts
What is the type of secretion produced by the Submandibular Salivary Glands?
Glycoprotein-rich secretion
What is the characteristic of endocrine glands?
They secrete hormones into the bloodstream
How are the cells of endocrine glands arranged?
In cords and follicles with lumens
What is the function of the secretory part of glands?
To store secretory products
How are glands classified?
By their structure and the mode of secretion
Test your knowledge on the regulation and control of hormones, including nervous, endocrine, and neuro-endocrine mechanisms. Learn about the role of the sympathetic nervous system, pituitary gland, and negative feedback loops in hormone secretion.
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