Podcast Beta
Questions and Answers
Which artery is formed by the merger of vertebral arteries from the right and left subclavian arteries?
What is the first branch that comes off the aortic arch?
Which artery supplies the external structures of the head and neck?
What is the function of the aortic semilunar valve?
Signup and view all the answers
Which artery gives off the middle cerebral, anterior communicating, and posterior communicating branches?
Signup and view all the answers
What is the destination of the ascending aorta?
Signup and view all the answers
Which artery interacts with the vertebral basilar system?
Signup and view all the answers
What does the left ventricle pump blood into?
Signup and view all the answers
Which artery supplies the eye?
Signup and view all the answers
What branches off the brachiocephalic artery?
Signup and view all the answers
Study Notes
Blood Flow from the Left Ventricle to the Head and Neck
- The left ventricle is a powerful systemic pump that squeezes blood out into the ascending aorta through the aortic semilunar valve.
- The ascending aorta goes up into the thoracic cavity and turns into the aortic arch.
Branches from the Aortic Arch
- Three branches come off the aortic arch:
- Left common carotid artery
- Brachiocephalic artery
- Left subclavian artery (not mentioned in detail)
Brachiocephalic Artery
- Branches into two arteries:
- Right common carotid artery
- Right subclavian artery
Left Common Carotid Artery
- Splits into two components:
- External carotid artery
- Internal carotid artery
External Carotid Artery
- Supplies external structures of the head and neck:
- Superior thyroid artery
- Lingual artery
- Maxillary artery
- Facial artery
- Occipital artery
- Superficial temporal artery
Internal Carotid Artery
- Moves up into the skull and gives off several branches:
- Ophthalmic artery
- Supplies the eye:
- Central retinal artery
- Ciliary arteries
- Lacrimal arteries
- Ethmoidal arteries
- Supplies the eye:
- Middle cerebral artery
- Supplies the temporal lobe and parietal lobe
- Anterior communicating artery
- Posterior communicating artery
- Interacts with the vertebral basilar system
- Ophthalmic artery
Right Common Carotid and Right Subclavian Arteries
- Similar to the left common carotid artery:
- Right common carotid artery:
- Gives off middle cerebral, anterior communicating, and posterior communicating branches
- Right subclavian artery:
- Gives off vertebral branches that merge into the basilar artery
- Right common carotid artery:
Vertebral Basilar System
- Vertebral arteries from the right and left subclavian arteries merge into the basilar artery.
- The basilar artery gives off several branches:
- Anterior inferior cerebellar arteries
- Superior cerebellar arteries
- Anterior spinal arteries
- Posterior inferior cerebellar arteries
- The basilar artery connects to the posterior communicating artery, which is part of the Circle of Willis.
Circle of Willis
- The posterior communicating artery connects the vertebral basilar system to the Circle of Willis.
- The Circle of Willis is a complex system that supplies blood to the brain.
- Branches from the Circle of Willis include:
- Posterior cerebral arteries
- Middle cerebral arteries
- Anterior cerebral arteries
Blood Flow from the Left Ventricle to the Head and Neck
- The left ventricle pumps blood into the ascending aorta through the aortic semilunar valve.
Branches from the Aortic Arch
- The aortic arch has three branches:
- Left common carotid artery
- Brachiocephalic artery
- Left subclavian artery
Blood Flow to the Head and Neck
- The brachiocephalic artery branches into:
- Right common carotid artery
- Right subclavian artery
- The left common carotid artery splits into:
- External carotid artery
- Internal carotid artery
External Carotid Artery
- Supplies blood to external structures of the head and neck, including:
- Superior thyroid artery
- Lingual artery
- Maxillary artery
- Facial artery
- Occipital artery
- Superficial temporal artery
Internal Carotid Artery
- Moves up into the skull and gives off branches, including:
- Ophthalmic artery, which supplies the eye
- Middle cerebral artery, which supplies the temporal lobe and parietal lobe
- Anterior communicating artery
- Posterior communicating artery, which interacts with the vertebral basilar system
Right Common Carotid and Right Subclavian Arteries
- Similar to the left common carotid artery, the right common carotid artery gives off:
- Middle cerebral, anterior communicating, and posterior communicating branches
- The right subclavian artery gives off vertebral branches that merge into the basilar artery
Vertebral Basilar System
- The vertebral basilar system is formed by the merging of vertebral arteries from the right and left subclavian arteries into the basilar artery
- The basilar artery gives off branches, including:
- Anterior inferior cerebellar arteries
- Superior cerebellar arteries
- Anterior spinal arteries
- Posterior inferior cerebellar arteries
- The basilar artery connects to the posterior communicating artery, which is part of the Circle of Willis
Circle of Willis
- The posterior communicating artery connects the vertebral basilar system to the Circle of Willis
- The Circle of Willis supplies blood to the brain and includes branches, including:
- Posterior cerebral arteries
- Middle cerebral arteries
- Anterior cerebral arteries
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
This quiz covers the flow of blood from the left ventricle through the aortic arch and its branches to the head and neck.