Which prefix denotes 'Lens'?

Which prefix denotes 'Lens'?

• A. Pan-
• B. Ramus-
• C. Phak-
• D. An-, A-

Answer: (C)

The main idea is recognizing how word parts in medical terms point to specific body structures. The combining form for lens is phak-, coming from Greek phakos. That root specifically signals the lens of the eye, and you’ll see it in terms like phakic (having a natural lens) or phakectomy (removal of the lens). Therefore, phak- is the part that denotes the lens, making it the best choice. The other options don’t fit for this meaning: pan- means all; ramus- refers to a branch, such as a ramus of a bone or nerve; an- or a- indicates without.

The main idea is recognizing how word parts in medical terms point to specific body structures. The combining form for lens is phak-, coming from Greek phakos. That root specifically signals the lens of the eye, and you’ll see it in terms like phakic (having a natural lens) or phakectomy (removal of the lens). Therefore, phak- is the part that denotes the lens, making it the best choice.

The other options don’t fit for this meaning: pan- means all; ramus- refers to a branch, such as a ramus of a bone or nerve; an- or a- indicates without.