Find the INCORRECT statement :

Options

A. Each rib in human is attached at one end to the vertebral column ,and at the other end to sternum and is therefore called bicephalic.
B. There are 12 pairs of ribs , each pair is attached to 1 thoracic vertebra.
C. Each rib is a C shaped flat bone
D. First 7 pair of ribs are attached to sternum with the help of a hyaline cartilage.

Answer

To solve the question of identifying the incorrect statement regarding human ribs, let's analyze each option step by step:

### Step 1: Analyze the First Statement
**Statement:** Each rib in human is attached at one end to the vertebral column and at the other end to the sternum and therefore called by cephalic.

**Analysis:**
- This statement is incorrect. Each rib is indeed attached at one end to the vertebral column and at the other end to the sternum, but they are not referred to as "cephalic." The term "cephalic" generally refers to the head or direction towards the head, which is not applicable in this context.

### Step 2: Analyze the Second Statement
**Statement:** There are 12 pairs of ribs, each pair is attached to one thoracic vertebra.

**Analysis:**
- This statement is correct. Humans have 12 pairs of ribs, and each pair is indeed attached to one thoracic vertebra.

### Step 3: Analyze the Third Statement
**Statement:** Each rib is a C-shaped flat bone.

**Analysis:**
- This statement is correct. Ribs are typically described as C-shaped and are classified as flat bones.

### Step 4: Analyze the Fourth Statement
**Statement:** First 7 pairs of ribs are attached to the sternum with the help of hyaline cartilage.

**Analysis:**
- This statement is also correct. The first 7 pairs of ribs (true ribs) are connected to the sternum via hyaline cartilage.

### Conclusion
After analyzing all the statements, we find that the first statement is the incorrect one.

### Final Answer
The INCORRECT statement is: **Each rib in human is attached at one end to the vertebral column and at the other end to sternum and therefore called by cephalic.**

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