Question

Choose the ODD one out of the following terms given and name the CATEGORY to which the others belong:

• A. Aqueous humor
• B. Vitreous humor
• C. Iris
• D. Central canal

Answer 1

The correct option is D

Central canal

The correct option is option D.

Explanation of the correct option:

Option D:

1. The central canal is part of the spinal cord.
2. It is present at the center of the spinal cord.
3. It fills with cerebrospinal fluid(CSF).

Explanation of the incorrect options:

Option A:

1. Aqueous humor is a clear, transparent, salty, watery fluid.
2. This fluid is present in the anterior chamber of the eyes.
3. Between the lens and cornea, this fluid is present.

Option B:

1. Vitreous humor is a clear, transparent jelly-like substance.
2. It is present between the lens and the retina in the vitreous chamber of the eyes.

Option C:

1. Iris is the pigmented part present in front of the lens of the human eyeball.
2. It controls constriction and dilation of the pupil.

Final answer:

According to the question, the odd one is the central canal. and the rest of the terms are associated with the eye (parts of the eyes).