Which statement about arteries is INCORRECT?

Question

BlackTom AI · Accepted Answer

The facial artery arises from the external carotid artery, so the statement that it branches from the internal carotid artery is false.

1. Relevant knowledge points and concepts
- The common carotid divides into the internal and external carotid arteries. The internal carotid ascends to supply the brain and eye and normally gives no branches in the neck. The external carotid supplies the face, scalp, and neck and gives off anterior branches including the facial and lingual arteries, and a terminal branch, the maxillary artery.
- The thoracic (descending) aorta gives off posterior intercostal arteries to most intercostal spaces.
- The vertebral artery is a branch of the subclavian artery and ascends through the transverse foramina to enter the skull.
- The maxillary artery is one of the terminal branches of the external carotid artery.

2. Step-by-step reasoning for each option
- "The posterior intercostal arteries branch from the thoracic aorta." True: the thoracic aorta issues posterior intercostals (typically for ribs 3–11; 1–2 may derive from the superior intercostal branch of the costocervical trunk).
- "The vertebral artery branches from the subclavian artery." True: standard anatomy has the vertebral artery originating from the first part of the subclavian on each side.
- "The facial artery branches from the internal carotid artery." False: this contradicts the standard branch pattern; the facial artery comes from the external carotid (anterior branch). The internal carotid gives no cervical branches.
- "The maxillary artery branches from the external carotid artery." True: the maxillary is a major terminal branch of the external carotid.

3. Why the correct answer is correct
Because the facial artery is an external carotid branch, any statement claiming it comes from the internal carotid is incorrect. The internal carotid’s lack of cervical branches makes the option anatomically wrong.

4. Why the other options are not correct answers to the prompt
They are true anatomical statements: posterior intercostals from thoracic aorta, vertebral from subclavian, and maxillary from external carotid—so they are not the incorrect option.

Conclusion: The incorrect statement is "The facial artery branches from the internal carotid artery." This matches the provided answer.

Which statement about arteries is INCORRECT?Single choice

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