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Arteries are defined as blood vessels which carry blood away from the heart (to either the body or lungs). Arteries: higher pressure, thicker walls, stretch (pulse) with each heart contraction & deliver blood to the arterioles which control the flow to individual capillaries. Veins are blood vessels which carry blood from capillaries back to the heart (body to right heart; ...Read more
Arteriosclerotic internal carotid & vertebro basilar arteries predominantly the left vertebrobasilar segment appearing tortuous with slight prominence?
What would cause cervical spondylosis, central canal stenosis, disc osteophyte complexes, mild cord impingement, cervical straightening in 43 y/o?
The 2 vertebral arteries arise from the left and right subclavian arteries and supply the brainstem and cerebellum. Dissection is rare (2.5/100, 000), affect women to men 3:1 and can cause stroke in people
Please explain.Spinal stenosis and neural foraminal stenosis, inferior cervical spine due to posteriordisc osteophyten complex formation, uncovertebral?
Encroachment: Any condition limiting space for the nerves causes encroachment. A herniated disc would cause encroachment. A bone spur would also cause. Encroachment does not imply pressure, or severity, or the presence of symptoms. ...Read more
Not exactly: The flow to the anterior cerebral starts at the heart, goes up the ascending aorta, to carotid arteries which reach the Circle of Willis, and go to anterior cerebral, middle cerebral and posterior cerebral arteries. Anterior communicating can be viewed as a bridging collateral. ...Read more
Narrowing: Stenosis is a condition where the tube inside the spine, the canal, is narrowed and potentially pinching on the spinal cord and/or spinal nerves. It can cause pain, weakness or numbness. It can be a problem from birth (congenital) or due to aging, injury or disease. ...Read moreSee 2 more doctor answers