which artery is absent in frog ?

Options

A. Right system arch
B. phrenic artery
C. carotid artery
D. renal artery

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks which artery is absent in frogs. We need to identify the arteries listed in the options and determine which one is not found in frogs.

2. **Reviewing the Options**: The options provided are:
- A) Right cistern arc
- B) Phrenic artery
- C) Carotid artery
- D) Renal artery

3. **Identifying the Function of Each Artery**:
- **Right cistern arc**: This is not a commonly referenced artery in amphibians; it may refer to a specific anatomical structure.
- **Phrenic artery**: This artery supplies the diaphragm, which is not present in frogs as they do not have a diaphragm like mammals.
- **Carotid artery**: Frogs do have carotid arteries that supply blood to the head.
- **Renal artery**: Frogs possess renal arteries that supply blood to the kidneys.

4. **Conclusion**: Based on the information, the phrenic artery is absent in frogs because they do not have a diaphragm. Therefore, the correct answer is the **phrenic artery**.

5. **Final Answer**: The artery that is absent in frogs is the **phrenic artery**.

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