AN-D7

Which of the following statements regarding the Circle of Willis and its components are true?

(Multiple Correct Answers)

The Circle of Willis is formed by branches of both the internal carotid and vertebral arteries.
The anterior communicating artery connects the two anterior cerebral arteries.
The posterior cerebral arteries arise directly from the internal carotid arteries.
The basilar artery is formed by the union of the two vertebral arteries.
The middle cerebral artery is a part of the Circle of Willis.

Which of the following arteries does not originate from the artery highlighted in the image?

Maxillary artery
Posterior auricular artery
Vertebral artery
Occipital artery

Which of the following arteries is the first branch arising from the aortic arch?

Brachiocephalic trunk
Left subclavian artery
Left common carotid artery
Right common carotid artery

A patient presents with profuse bleeding from the lateral face after trauma near the angle of the mandible. Which artery is most likely injured?

Lingual artery
Facial artery
Maxillary artery
Occipital artery

Which of the following statements regarding the arterial supply of the head and neck are true?

(Multiple Correct Answers)

The external carotid artery supplies most of the superficial structures of the face and scalp.
The internal carotid artery gives rise to the maxillary artery.
The facial artery is a branch of the external carotid artery.
The lingual artery supplies the tongue and floor of the mouth.
The vertebral arteries are branches of the external carotid artery.

Which of the following arteries is not part of the Circle of Willis?

Anterior Cerebral Artery
Middle Cerebral Artery
Internal Carotid Artery
Posterior Cerebral Artery

During extraction of a maxillary molar, the dentist inadvertently causes brisk bleeding in the posterior superior alveolar region. The bleeding is most likely from a branch of which artery?

Facial artery
Maxillary artery
Superficial temporal artery
Internal carotid artery

Which of the following arteries arises from the C4 segment of the internal carotid artery?

Anterior cerebral artery
Ophthalmic artery
Posterior communicating artery
Meningohypophyseal trunk

Which of the following statements regarding the external carotid artery (ECA) and its branches are true?

(Multiple Correct Answers)

The maxillary artery supplies the Muscles of Mastication
The superficial temporal artery supplies the scalp and is a terminal branch of the ECA.
The internal carotid artery gives rise to the lingual artery.
The ascending pharyngeal artery is the smallest and most medial branch of the ECA.
The external carotid artery does not contribute to the blood supply of the oral cavity.

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