Question

In human body which one of the following is an atomically correct ?

• A. Collar ones - 3 pairs
• B. Salivary glands - 1 pair
• C. Cranial nerves - 10 pairs
• D. Floating ribs - 2 pairs

Answer 1

The Correct Option is D

Let's evaluate the correctness of each given option in the context of human anatomy:

1. Collar bones - 3 pairs: This option is incorrect. Humans have only 1 pair of collarbones, known as clavicles. Each clavicle connects the scapula (shoulder blade) to the sternum (breastbone).
2. Salivary glands - 1 pair: This option is incorrect. Humans typically have three major pairs of salivary glands: the parotid, submandibular, and sublingual glands, which are responsible for the production of saliva.
3. Cranial nerves - 10 pairs: This option is incorrect. In humans, there are 12 pairs of cranial nerves, which emerge directly from the brain and brainstem. They have various functions related to the sense organs and peripheral body parts.
4. Floating ribs - 2 pairs: This option is correct. In the human ribcage, there are typically 12 pairs of ribs. Of these, the last two pairs (11th and 12th) are referred to as "floating ribs" because they are not attached to the sternum or to each other at the front.

Based on the above analysis, the correct answer is indeed Floating ribs - 2 pairs. This is a verified anatomical fact that matches the details mentioned in standard biological and anatomical resources.