Cerebral and Systemic Circulation Concepts

This video tutorial explains the blood flow from the left ventricle to the head and neck, detailing the aortic arch and its branches, including the external and internal carotid arteries. It also covers the vertebral basilar system and its connection to the Circle of Willis. The video concludes with a recap of the key points discussed.

What is the primary function of the left ventricle in the circulatory system?

• To pump blood into the systemic circulation

• To pump blood into the pulmonary circulation

• To filter blood before it enters the aorta

• To receive deoxygenated blood from the body

Which artery is NOT a branch of the aortic arch?

• Right subclavian artery

• Brachiocephalic artery

• Left subclavian artery

• Left common carotid artery

Which branch of the external carotid artery supplies the thyroid gland?

• Superior thyroid artery

• Maxillary artery

• Facial artery

• Lingual artery

What is the role of the middle cerebral artery?

• To connect the anterior and posterior cerebral arteries

• To supply the temporal and parietal lobes

• To supply the occipital lobe

• To supply the cerebellum

Which artery supplies blood to the eye?

• Posterior communicating artery

• Ophthalmic artery

• Anterior communicating artery

• Middle cerebral artery

What is the function of the posterior communicating artery?

• To supply the frontal lobe

• To connect the anterior cerebral arteries

• To connect the vertebral and basilar arteries

• To connect the internal carotid and vertebral-basilar systems

Which arteries form the basilar artery?

• External carotid arteries

• Vertebral arteries

• Subclavian arteries

• Internal carotid arteries

What is the significance of the Circle of Willis?

• It connects the pulmonary and systemic circulations

• It filters blood before it enters the brain

• It provides collateral circulation to the brain

• It supplies blood to the heart

Which artery is NOT part of the Circle of Willis?

• Anterior cerebral artery

• Middle cerebral artery

• Posterior cerebral artery

• Superior thyroid artery

What is the role of the vertebral arteries in the circulatory system?

• To connect the aorta to the subclavian arteries

• To form the basilar artery

• To supply the face and neck

• To supply the lower limbs