Blood Vessels 1/ Branches of the Aorta (Q3,P3) Flashcards
Hematology
The study of blood
Cardiology
The study of the Heart
Angiology
- The study of blood vessels
- Two Sectors: Arteriology &Phlebology
Arteriology
- The study of arteries
- A sector of angiology
Phlebology
-Study of veins
- A sector of angiology
Tunica Intima
- Inner layer of blood vessels
- Endothelium
- Smooth surface
Tunica Media
- Middle layer of blood vessels
- Smooth muscle tissue
- Constrict/Dilate
Tunica Externa/Adventitia
- Outer layer of blood vessels
- Connective tissue
- Support vessel/anchor to other structures
Order of Progression of Blood Vessels
(starting with the heart, and returning to the heart)
- Arteries
- Arterioles
- Capillaries of the capillary beds
- Venules
- Veins
Anastomoses/Collateral Circulation
- Backup routes for blood to flow if one link is blocked or compromised
- Occur normally throughout the body in the circulatory system
Circle of Willis
- An example of an anastomoses
- a ring of vessels connecting the anterior and posterior circulations of the brain
Other Anastomoses
- Scapular Anastomoses
- Patellar Anastomoses
Vasa Vasorum
- Small blood vessels that supply the walls of larger arteries and veins
- supply the outer wall (externa) of large arteries and veins.
- “vessels of vessels”
Pulmonary Trunk
exits the right ventricle
Pulmonary Arteries
- Branch from the Pulmonary Trunk
- blood vessels that carry oxygen-poor blood from the right side of your heart to your lungs.
Lobar Arteries
- branch from the pulmonary arteries
- 3 right, 2 left
Pulmonary Veins
- Return oxygen-rich blood to the heart and empty into the left atrium
- 2 right,2 left
Systemic Arteries
- Carry oxygenated blood away from the heart
Aorta
- Largest artery in the body
- vessel leaving the left ventricle
- Three Primary Regions: Ascending Aorta, Aortic Branch, Descending Aorta
Ascending Aorta
- Ascends from the left ventricle
- Branches include the right and left coronary arteries
Aortic Arch
- Lies posterior to the manubrium
- Has Three Branches: Brachiocephalic Trunk, Left Common Carotid, Left Subclavian
Brachiocephalic Trunk/ Brachiocephalic Artery/ Innominate artery
-Artery of the mediastinum that supplies blood to the RIGHT ARM and the HEAD and NECK
- first branch of the aortic arch
- Later divides into the right common carotid artery and the right subclavian artery.
Left Common Carotid
- Supplies oxygenated blood to the LEFT SIDE of the HEAD and NECK
- Divides in the neck to form the external and internal carotid arteries.
Left Subclavian Artery
- A major artery of the upper thorax that mainly supplies blood to the HEAD and ARMS.
- Has 4 Branches: Vertebral Artery, Internal Thoracic Artery, Thyrocervical trunk, Costocervical trunk