Identify the glands (A) and (B) shown below and select the right option for location and function.
A
A - Unicellular Gland; Location: Alveoli; Function: Secret Saliva
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B
B - Multicellular gland; Location: Oesophagus; Function: Secretes enzyme
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C
A - Multicellular gland; Location: Alimentary canal; Function: Secretes Mucous
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D
B - Multicellular gland; Location: Buccal cavity; Function: Secretes Saliva
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Solution
The correct option is D B - Multicellular gland; Location: Buccal cavity; Function: Secretes Saliva Some of the columnar or cuboidal cells get specialised for secretion and are called glandular epithelium. They are mainly of two types: unicellular, consisting of isolated glandular cells (gobletcells of the alimentary canal), and multicellular, consisting of cluster of cells (salivary gland).