last Quiz on Salivary Secretion Physiology

What is the primary function of saliva?

• To regulate body temperature

• To initiate digestion

• To absorb nutrients

• To produce hormones

Which gland is the largest among the salivary glands?

• Minor salivary glands

• Parotid gland

• Submandibular gland

• Sublingual gland

Which enzyme in saliva begins the breakdown of starches?

• Protease

• Cellulase

• Lipase

• Amylase

What is the primary component of saliva?

• Enzymes

• Mucins

• Electrolytes

• Water

Which ion is actively secreted in the salivary ducts?

• Sodium

• Chloride

• Potassium

• Calcium

What role does bicarbonate play in saliva?

• Promotes enzyme activity

• Enhances flavor

• Neutralizes acidity

• Increases viscosity

Which nervous system primarily regulates salivary secretion?

• Central nervous system

• Sympathetic nervous system

• Parasympathetic nervous system

• Peripheral nervous system

What is the effect of sympathetic stimulation on saliva?

• Increases saliva production

• Has no effect on saliva

• Decreases saliva viscosity

• Makes saliva more viscous

What is the primary role of immunoglobulin A (IgA) in saliva?

• Taste enhancement

• Nutrient absorption

• Antimicrobial defense

• Digestive enzyme

What happens to saliva as it passes through the salivary ducts?

• It remains unchanged

• It becomes more isotonic

• It becomes more hypertonic

• It becomes more hypotonic