Which gut hormone causes relaxation of sphincter of Oddi?
ক
ক) Gastrin
খ
খ) Secretin
গ
গ) CCK
ঘ
ঘ) Ghrelin
ব্যাখ্যা
CCK causes contraction of gallbladder & relaxation of sphincter of Oddi.
২.
You are told by your registrar that one of your inpatients has been diagnosed with primary sclerosing cholangitis (PSC). Your registrar suspects that the patient may have an associated condition. Primary sclerosing cholangitis is associated with which of the following diseases?
ক
Thyroid disease
খ
Systemic sclerosis
গ
Rheumatoid arthritis
ঘ
Ulcerative colitis
ব্যাখ্যা
Primary sclerosing cholangitis 28 D Eighty to 100 per cent of patients with PSC will have ulcerative colitis (D). On the other hand, 3 per cent of patients with ulcerative colitis will have PSC. Thyroid disease (A), systemic sclerosis (B) and rheumatoid arthritis (C) are associated with primary biliary cirrhosis.
৩.
Which of the following is the site of Na+–bile acid cotransport?
ক
ক) Gastric antrum
খ
খ) Gastric fundus
গ
গ) Duodenum
ঘ
ঘ) Ileum
ব্যাখ্যা
Explanation- ★Bile salts are recirculated to the liver in the enterohepatic circulation via a Na+–bile acid cotransporter located in the ileum of the small intestine. Reference-BRS physiology/6th/P-212/Fig-6.12
৪.
Water content is least in
ক
Saliva
খ
Gastric juice
গ
Liver bile
ঘ
Gallbladder bile
৫.
Which is acceptable in bile acid metabolism
ক
Site- Kidney
খ
Compartment- Mitochondria
গ
Rate limiting enzyme- 7-a- hydroxylase
ঘ
2 ATP is produced
ব্যাখ্যা
Bile acid metabolism 1. Site- Liver 2. Compartment- Cytoplasm 3. Rate limiting enzyme- 7-a- hydroxylase 4. No ATP is produced/used