MCQ's on salivary gland by drtbalu

Salivary gland

Salivary gland untitled

Salivary gland

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Parotid gland secretions constitute about
1. 3/4 th of salivary secretion
2. 1/5 th of salivary secretion
3. 100% of salivary secretion
4. 90% of salivary secretion
During sleep the parotid gland is known to secrete about
1. 50% of basal salivary secretion
2. 100% of basal salivary secretion
3. 75% of basal salivary secretion
4. Parotid secretion ceases during sleep
The parotid gland is divided into superficial and deep portions by
1. Internal maxillary artery
2. Mandible
3. Facial nerve branches
4. Cartilagenous portion of external auditory canal
Parotid gland is a
1. Serous salivary gland
2. Mucinous salivary gland
3. Mucoserous salivary gland
4. Protenaceous salivary gland
The first salivary gland to develop is
1. Submandibular salivary gland
2. Sublingual salivary gland
3. Parotid gland
4. Accessory salivary glands
Tumors arising from deep lobe of parotid gland extending across the parapharyngeal space is covered on their anterior aspect by
1. Stretched out fibers of superior constrictor muscles
2. Stretched out fibers of middle constrictor muscle
3. Stretched out fibers of medial pterygoid muscle
4. Stretched out fibers of lateral pterygoid muscle
Multiple cystic lesions inside both the parotid glands in a patient should alert the clinician for a possible diagnosis of
1. Malignancy
2. HIV infection
3. Mumps
4. Measles infection
Parotid calculi are diagnosed by
1. Plain radiograph of parotid gland
2. Plain radiograph occlusal view
3. Xray skull lateral view
4. CT scan
Benign tumors of superfical lobe of parotid gland takes a very long time to project outwards because
1. Slow rate of tumor growth
2. The external surface of the parotid gland is covered by tough parotid fascia
3. Ramus of the mandible stops tumor progression
4. The styloid process stops the progression of tumor
In parotid surgeries the most reliable way of identifying the facial nerve is
1. Searching at the tympanomastoid sulcus
2. By using the tragal pointer
3. By removing the styloid process
4. By tracing it from the mastoid cavity
Superfical parotidectomy is contraindicated in patients with sialectasis because
1. There is a high risk of fistula formation
2. There is risk of facial palsy
3. There is high risk of infection
4. There is high risk of dry mouth
In Bulimia parotid glands are
1. Shrunken in size
2. Nodular
3. Enlarged
4. Cystic in nature
Salivary fistula is commonly originates from
1. Submandibular salivary glands
2. Sublingual salivary glands
3. Accessory salivary glands
4. Parotid glands
In patients with diabetes mellitus the parotid gland is
1. Enlarged
2. Shrunken
3. Cystic in nature
4. Fibrosed
The antibiotic that is actively secreted in the saliva is
1. Ampicillin
2. Cefixime
3. Streptomycin
4. Clindamycin
Carbohydrate-protein substances corresponding to the blood group antigens are not secreted by
1. Submandibular salivary glands
2. Parotid glands
3. Sublingual salivary glands
4. Accessory salivary glands
Calcium content of saliva is low in
1. Submandibular salivary gland secretions
2. Parotid secretions
3. Sublingual salivary gland secretions
4. Accessory salivary gland secretions
Sialadenosis commonly involves
1. Sublingual gland
2. Parotid gland
3. Submandibular gland
4. Accessory salivary gland
Sialolithiasis is common in
1. Submandibular salivary gland
2. Parotid gland
3. Sublingual salivary gland
4. Accessory salivary gland
Warthin's tumor is commonly seen in
1. Parotid gland
2. Submandibular salivary gland
3. Sublingual salivary gland
4. Accessory salivary gland
Warthin's tumor is known to develop from
1. Acinar cells
2. Myoepithelial cells
3. Basal cells
4. Lymphoid tissue within parotid gland
Oncocytoma almost exclusively occurs in
1. Parotid salivary gland
2. Submandibular salivary gland
3. Sublingual salivary gland
4. Accessory salivary gland
Technitium pertechnetate scans are useful in the diagnosis of
1. Warthin's tumor
2. Pleomorphic adenoma
3. Monomorphic adenoma
4. Sialadinitis
Adenoid cystic carcinoma is known to commonly involve
1. Parotid gland
2. Submandibular salivary gland
3. Sublingual salivary gland
4. Minor salivary glands
Perineural invasion is common in
1. Pleomorphic adenoma
2. Mucoepidermoid carcinoma
3. Acinous cell carcinoma
4. Adenoid cystic carcinoma
Acini of parotid glands are formed by
1. Serous cells
2. Seromucinous cells
3. Mucinous cells
4. Cloudy cells
Daily average volume of saliva produced in a human being is
1. 3 - 4 litres
2. 3 - 5 litres
3. 1 - 1.5 litres
4. 8 - 10 litres
Submandibular salivary gland swelling is differentiated from submandibular lymphadenitis clinically by
1. Movement during swallowing
2. Bidigital palpation
3. Palpation from behind the patient
4. Presence of transillumination in submandibular salivary gland
All major salivary glands arise from
1. Ectoderm
2. Mesoderm
3. Endoderm
4. All three embryonal tissue
The parotid has constant relationship with
1. Buccal branch of facial nerve
2. Upper zygomatic nerve
3. Lower zygomatic nerve
4. Marginal mandibular nerve
Submandibular salivary gland is separated into superficial and deep portions by
1. Digastric muscle
2. Mylohyoid muscle
3. Sternomastoid muscle
4. Buccinator muscle
Sublingual salivary gland is situated
1. Below the mylohyoid muscle
2. Posterior to the mylohyoid muscle
3. Above the mylohyoid
4. Under the palatopharyngeous muscle
In submandibular salivary gland surgery, the branch of facial nerve at risk is
1. Marginal mandibular nerve
2. Buccal nerve
3. Upper zygomatic nerve
4. Lower zygomatic nerve
Parotid gland swellings are very painful because
1. The outer layer (parotid fascia) is inelastic and firm
2. There is no outer layer of fascia covering the parotid gland
3. The parotid gland is closely related to the external auditory canal
4. The parotid glands suppurate easily
In superficial parotidectomy
1. Only a part of superfical lobe is removed
2. The superfical lobe is removed completely
3. The deep lobe is removed completely
4. The whole of superfical lobe and part of deep lobe of the gland is removed
Parotid duct is known as
1. Stenson's duct
2. Wharton's duct
3. Stylle's duct
4. Finely's duct
Chemical stimulation maximises the secretion of
1. Submandibular gland
2. Parotid gland
3. Sublingual gland
4. Accessory salivary gland
Food stimulates secretion of
1. Submandibular salivary gland
2. Sublingual salivary gland
3. Parotid gland
4. Accessory salivary glands
During sleep salivary secretion is maintained by
1. Parotid gland only
2. Submandibular gland only
3. Sublingual gland only
4. Submandibular and sublingual salivary glands
Anesthesia over parotid gland area is caused by injury to
1. Buccal nerve
2. Marginal mandibular nerve
3. Greater auricular nerve
4. Orbital nerve

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