differentiate between parotidgland and sublingual gland on the basis of their location
Answers
The salivary glands in mammals are exocrine glands that produce saliva through a system of ducts. Humans have three paired major salivary glands (parotid, submandibular, and sublingual) as well as hundreds of minor salivary glands.[1] Salivary glands can be classified as serous, mucous or seromucous (mixed).
Answer:
Parotid Gland
Parotid glands are the largest salivary gland. Each gland is approximately 6 cm long and 3-4 cm wide and can weigh up to 30 grams. They are located within each of our cheeks. In our oral cavity they are responsible for the secretion of about 20% of saliva. This saliva is known as serous i.e. more liquid and fluid. It helps in the first phase of the digestion of food, facilitate mastication "chewing". These glands secrete protein-rich fluid which is a suspension of alpha-amylase enzyme. Do you know why alcohol abuse is directly related to the lack of saliva? Because intake of alcohol or some drugs can affect the sympathetic nervous system and produces vasoconstriction of the parotid gland and reduces the secretion of saliva.
Sublingual gland
It is the smallest of the major salivary glands. They are located under the tongue. Approximately 5% of the saliva comes from these glands. The saliva that comes out is mostly mucus, having viscous texture and flows in to the mouth through sublingual ducts. Sometimes, sialoliths also termed as salivary calculi, or salivary stones form in the ducts of salivary glands which block the flow of saliva and causes pain, swelling in the affected gland. Mostly, salivary stones affect submandibular glands and sometimes parotid too.
From the above article we have learnt about salivary glands, its types, functions and where they are located.