Post Test: Topic 2 – Salivary Glands: Structure, Development and Secretory Function

Results

QUIZ START

#1. A patient presents with swelling in front of the ear. Injury to structures within the affected gland is most likely to impair which function?

Movement of facial muscles

Elevation of soft palate

Taste from posterior tongue

Swallowing reflex

Movement of tongue

#2. During routine dental examination, saliva is observed to be thick and reduced in volume. Which gland normally produces the largest volume of resting saliva?

Parotid gland

Buccal gland

Palatine gland

Sublingual gland

Submandibular gland

#3. A child with abnormal development of oral epithelial buds is likely to have defective formation of which structure?

Salivary duct system

Facial arteries

Tongue muscles

Mandibular bone

Muscles of mastication

#4. A patient undergoing head and neck radiotherapy complains of difficulty swallowing dry food. Which primary physiological function is most likely affected?

Protein digestion

Gastric emptying

Vitamin metabolism

Lipid absorption

Food lubrication

#5. A clinician stimulates taste receptors on the tongue during examination. Which immediate physiological response is expected?

Decrease in intestinal movement

Suppression of swallowing

Decrease in gastric motility

Increase in salivary secretion

Reduction in bile flow

#6. A patient presents with severe dryness of mouth after prolonged dehydration. Which component of saliva is most important for maintaining oral moisture?

Mucin

Sodium

Phosphate

Calcium

Amylase

#7. During microscopic examination, a gland composed mainly of serous acini is identified. Which gland is most likely being observed?

Parotid gland

Palatine gland

Labial gland

Sublingual gland

Submandibular gland

#8. A patient reports pain and swelling of a salivary gland during meals. Examination reveals obstruction in the duct. What is the most likely mechanism responsible for the pain?

Reduced mucus production

Reduced enzyme secretion

Accumulation of saliva behind obstruction

Loss of nerve supply

Increased blood flow

#9. Which electrolyte concentration becomes relatively higher in saliva when secretion rate increases?

Sodium

Phosphate

Magnesium

Calcium

Potassium

#10. A student chews food and immediately experiences increased saliva production. Which stimulus most directly caused this response?

Change in body temperature

Muscle contraction

Visual stimulus

Mechanical chewing

Reduced blood pressure

#11. Which substance in saliva begins digestion before food reaches the stomach?

Lysozyme

Bicarbonate

Mucin

IgA

Amylase

#12. A patient taking anticholinergic medication complains of dry mouth and difficulty speaking. Which mechanism best explains this effect?

Reduced parasympathetic stimulation

Activation of taste receptors

Increased sympathetic stimulation

Increased mucus production

Enhanced duct secretion

#13. Which component of saliva helps protect teeth by neutralizing acids produced by bacteria?

Amylase

Lysozyme

IgA

Bicarbonate

Mucin

#14. Which heavy metal is known to be eliminated partially through salivary secretion?

Mercury

Calcium

Magnesium

Zinc

Iron

#15. A patient with reduced salivary flow develops frequent dental caries. Loss of which function most directly explains this condition?

Food lubrication

Electrolyte transport

Protein digestion

Acid neutralization

Taste facilitation

#16. Which cells are responsible for producing the initial fluid that forms saliva?

Duct cells

Myoepithelial cells

Endothelial cells

Goblet cells

Acinar cells

#17. During low secretion rates, which electrolyte is present in relatively higher concentration compared with sodium?

Potassium

Chloride

Phosphate

Magnesium

Calcium

#18. A patient complains of difficulty swallowing dry bread but can swallow liquids normally. Dysfunction of which salivary function is most likely responsible?

Digestive enzyme activity

Temperature regulation

Taste perception

Lubrication of food

Immune defense

#19. Which property of saliva helps wash away bacteria from the oral cavity?

High viscosity

High lipid content

Reduced enzyme activity

Low electrolyte content

Continuous flow

#20. A patient develops thick, sticky saliva with reduced water content due to reduced gland stimulation. Which physiological change most directly explains this condition?

Enhanced enzyme production

Reduced potassium secretion

Decreased parasympathetic activity

Increased bicarbonate secretion

Increased sodium reabsorption

Finish