Which is common to kidney and skeleton in mammals

Options

A. cortex
B. pelvis
C. medulla
D. radius

Answer

**Step-by-Step Text Solution:**

1. **Understanding the Question**: The question asks for a term or structure that is common to both the kidney and the skeletal system in mammals.

2. **Identifying Structures in the Kidney**: The kidney has several parts, including the cortex, medulla, and renal pelvis. The cortex is the outer layer, and the medulla is the middle layer.

3. **Identifying Structures in the Skeleton**: The skeletal system includes various bones and structures, one of which is the pelvic girdle, commonly referred to as the pelvis.

4. **Comparing Structures**:
- The cortex is specific to the kidney and not found in the skeleton.
- The medulla is also specific to the kidney.
- The radius is a bone found in the skeletal system but not in the kidney.

5. **Finding the Common Term**: The term "pelvis" is found in both contexts:
- In the kidney, the renal pelvis is a funnel-shaped structure that collects urine.
- In the skeletal system, the pelvic girdle (or hip girdle) is a bony structure that supports the lower limbs.

6. **Conclusion**: The only structure that is common to both the kidney and the skeletal system in mammals is the "pelvis".

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