How many parts does duodenum have

Correct Answer: B

Rationale: The duodenum has four parts: superior, descending, horizontal, and ascending.

Correct Answer: C

Rationale: Multifilament sutures are less resistant to harboring organisms due to their structure.

Correct Answer: A

Rationale: Monofilament sutures reduce tissue drag and infection risk in vascular surgery.

Correct Answer: B

Rationale: Colds do not cause tuberculosis; TB is caused by Mycobacterium tuberculosis bacteria.

Correct Answer: B

Rationale: Handwashing after blowing or wiping the nose prevents the spread of germs to surfaces and others.