Parotid gland histology

The video tutorial explores the parotid gland, focusing on its anatomy, histology, and clinical relevance. It begins with an introduction to salivary glands, followed by a detailed examination of the parotid gland's gross anatomy, including its location and function. The tutorial then delves into the histological structure, highlighting the salavon and duct system. Additional structures like adipose tissue and lymph nodes are discussed, along with clinical notes on parotid gland tumors. The session concludes with a recap of the key points covered.

What is the primary function of the parotid gland?

• To produce mucus for lubrication

• To secrete serous fluid aiding in carbohydrate digestion

• To filter blood

• To store fat

Where is the parotid gland located?

• Behind the ear

• Below the jaw

• On the tongue

• In front of the ear

What is the role of the connective tissue capsule in the parotid gland?

• To produce saliva

• To filter blood

• To divide the gland into lobules

• To store enzymes

What is the main functional unit of the salivary glands?

• Duct

• Salavon

• Lobule

• Acinus

Which cells are responsible for the contractile action in the parotid gland?

• Serous cells

• Myoepithelial cells

• Epithelial cells

• Adipocytes

What is the function of intercalated ducts in the parotid gland?

• To produce enzymes

• To add bicarbonate ions and absorb chloride

• To filter blood

• To store saliva

What type of epithelium lines the excretory ducts?

• Simple columnar

• Simple squamous

• Stratified cuboidal or pseudostratified columnar

• Transitional

What is a distinguishing feature of the parotid gland?

• Presence of adipose tissue

• Absence of ducts

• Presence of mucus cells

• Absence of lymph nodes

What is a common symptom of parotid gland tumors?

• Increased saliva production

• Swelling near the ear

• Loss of taste

• Hearing loss

Which diagnostic tool is most relevant for observing parotid tumors histologically?

• Ultrasound

• X-ray

• MRI

• Biopsy