Which condition occurs when an area of heart muscle dies or is permanently damaged because of an inadequate supply of oxygen to that area quizlet?
Ischemia results when the heart muscle is starved for oxygen and nutrients. When damage or death of part of the heart muscle occurs as a result of ischemia, it’s called a heart attack, or myocardial infarction (MI).
What causes narrow blood vessels?
The main cause is atherosclerosis, which is the build-up of fatty deposits that narrow a blood vessel, usually an artery. The narrowed blood vessel reduces the circulation of blood to the associated body part.
Is a condition of expressive blood flow through the vessels that can result in both hardening and general deterioration of the walls of the vessels?
arteriosclerosis, also called hardening of the arteries, chronic disease characterized by abnormal thickening and hardening of the walls of arteries, with a resulting loss of elasticity.
What is a sac formed by a local widening of the wall of an artery usually caused by injury or disease?
Aneurysm: An aneurysm is an abnormal widening of a blood vessel. Aneurysms can sometimes burst, causing a serious medical emergency. If not caught in time, they can be life-threatening. Aorta: The main artery leaving the heart.
What happens when part of the heart muscle dies?
If too much muscle dies, the heart is not able to pump enough blood to the rest of the body. Damage to the heart cells that regulate the heartbeat may cause fatal heart rhythm problems. Sometimes, the heart muscle weakens and can tear as a result of the damage. This causes a fatal hemorrhage (bleeding).
What condition occurs when an area of heart muscle dies or is permanently damaged because of an inadequate supply of oxygen to that area?
A myocardial infarction, or a heart attack, occurs when an area of the cardiac muscle dies or is permanently damaged due to an inadequate supply of oxygenated blood to that area.
What causes blood vessels to constrict?
Normally, the vessels that supply blood to the skin constrict or narrow in response to cold temperatures. This reaction, called “vasoconstriction,” decreases blood flow to the skin, which helps to minimize heat loss from the warm blood and therefore preserve a normal internal or “core” temperature.
What happens when your blood vessels narrow?
Vasoconstriction reduces the volume or space inside affected blood vessels. When blood vessel volume is lowered, blood flow is also reduced. At the same time, the resistance or force of blood flow is raised. This causes higher blood pressure.
What happens when blood vessels thicken?
Atherosclerosis is thickening of the walls of the arteries. It is also known as hardening of the arteries. It is caused by a buildup of plaque in the inner lining of an artery. Plaque is made up of deposits of fatty substances, cholesterol, cellular waste products, calcium, and fibrin.
What happens to blood when it flows through the capillaries of the lungs?
Blood from the heart flows through these capillaries and collects oxygen from the alveoli. At the same time, carbon dioxide passes out of the capillaries and into the alveoli. When you breathe out, you get rid of this carbon dioxide. The bright red, oxygen-rich blood is returned to the heart and pumped out to the body.
What is the local widening of an artery called?
aneurysm, widening of an artery that develops from a weakness or destruction of the medial layer of the blood vessel.
What is thickening of the arteries?
Atherosclerosis is thickening of the walls of the arteries. It is also known as hardening of the arteries. It is caused by a buildup of plaque in the inner lining of an artery.
What is angiosclerosis and angiostenosis?
The abnormal hardening of the walls of blood vessels is angiosclerosis The abnormal narrowing of a blood vessel is angiostenosis The surgical removal of a blood vessel is a/an angiectomy The process of recording a picture of blood vessels is called
What is another word for angiostrophy?
angiospasm, angiosperm, angiospermous, angiostatin, angiostaxis, angiostenosis, angiostrongylosis, angiostrongylus malaysiensis, angiostrophy, angiotelectasis, angiotensin.
When ATP is abundant gluconeogenesis is favored?
Thus, when ATP is abundant, gluconeogenesis is favored. Under these conditions, cells produce glucose that can be converted into glycogen and stored for later use, when energy is depleted and food is scarce.