Find the correct option regarding the number of bones present in given part of axial skeleton

Options

A. Skull- 30, vetebral column-25 , ribs+ sternum -24+1
B. Skull- 29, vetebral column-26 , ribs+ sternum -12+1
C. Skull- 29, vetebral column-26 , ribs+ sternum -24+1
D. Skull- 30, vetebral column-25 , ribs+ sternum -25+1

Answer

To solve the question regarding the number of bones present in the axial skeleton, we will break down the components of the axial skeleton step by step.

### Step 1: Identify the Components of the Axial Skeleton
The axial skeleton consists of:
- Skull
- Vertebral column (backbone)
- Rib cage (ribs and sternum)

### Step 2: Count the Bones in the Skull
The skull is made up of:
- **Cranial bones**: 8 bones that protect the brain.
- **Facial bones**: 14 bones that form the face.
- **Hyoid bone**: 1 U-shaped bone at the base of the skull.
- **Middle ear bones**: 6 bones (3 in each ear: malleus, incus, and stapes).

**Total for the skull**:
8 (cranial) + 14 (facial) + 1 (hyoid) + 6 (middle ear) = **29 bones**.

### Step 3: Count the Bones in the Vertebral Column
The vertebral column consists of:
- **26 vertebrae**: These are the small bones that make up the backbone.

### Step 4: Count the Bones in the Rib Cage
The rib cage consists of:
- **Ribs**: There are 12 pairs of ribs, which totals to 24 ribs.
- **Sternum**: 1 bone.

**Total for the rib cage**:
24 (ribs) + 1 (sternum) = **25 bones**.

### Step 5: Combine the Counts for the Axial Skeleton
Now, we can combine the counts from the skull, vertebral column, and rib cage:
- Skull: 29 bones
- Vertebral column: 26 bones
- Rib cage: 25 bones

**Total for the axial skeleton**:
29 (skull) + 26 (vertebral column) + 25 (rib cage) = **80 bones**.

### Conclusion
The correct option regarding the number of bones present in the given part of the axial skeleton is **option C**.

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