GIT secretions

Which cells of the salivary gland produce fluid?

• Ductal cells

• Serous cells

• Acini cells

• Salivary cells

Saliva contains proteins

• True

• False

Which of the following GIT reflexes is responsible for the majority of stomach secretions?

• Cephalic

• Gastric

• Intestinal

Enterokinase is key to the activation of many pancreatic proteases

• True

• False

Which enzyme does enterokinase activate?

• Proelastase

• Chymotrypsinogen

• Trypsinogen

• Procarboxypeptidases

Which function is shared by pancreatic fluid and bile?

• Fat emulsification

• Enzyme delivery

• Acid neutralisation

• tonicity balancing

The parasympathetic stimulation of acid production is mediated through which receptor?

• Muscarinic

• Acetylcholine

• CCK₂

• Histamine

Which gastric hormone activates pancreatic acini cells to secrete bicarbonate ions?

• Gastrin

• Secretin

• Histamine

• cAMP

Which component of pancreatic juice is primarily responsible for digesting fats?

• Trypsin

• Bicarbonate

• Amylase

• Lipase

Which hormone stimulates the gallbladder to release bile into the duodenum?

• Gastrin

• Somatostatin

• Cholecystokinin (CCK)

• Secretin