0
The property that allows any cell in the cardiac muscle to begin an action potential, or a cardiac conduction, leading to cardiac contraction.
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
Automaticity of the heart?
It is the ability of the heart to send an electrical impulse on its own.
Is automaticity a word?
Yes, it is.
What cells have the greatest automaticity?
ENDOTHELIAL
What type of software operates with automaticity?
OLTP
Property of Cardiac Muscles?
automaticity contratility conductivity
What causes the ability of cardiac cells to spontaneously depolarize without being stimulated by a nerve?
Automaticity
There are two primary kinds of cells in the heart muscle These cells are the myocardial and electrical cells?
Myocardial cells lines the muscular walls of heart tissues (contractility and extensibility) Electrical cells is the conduction system of the heart. Can be conducted 3 ways: automaticity that generates action potential, excitability that responds to electrical impulses and conductivity transmit an electrical impulses from one cell to the next
What is the ability to recognize letters and words quickly and accurately?
to quickly and accurately recognize words is referred to as automaticity
Why do EMTs use adrenaline in cardiac arrest?
Adrenaline is a horomone that is known as the "fight or flight" response. This means that the horomone prepares your body for shock (ie. the adrenaline speeds up the heart and breathing to give you enough energy to run if necessary). Therefore, the adrenaline is given to try and speed up the heart or to get it beating if stopped.
Why cant you make hearts out of leg muscles?
The heart muscles are specialized muscles. The fibers are a structural syncitium, meaning they behave as one. There are gap junctions between them allowing them to propagateaction potentials with ease. These muscles also have automaticity, a property that enable them to generate impulses on their own. In addition, they conduct action potentials very well.Leg muscles and other skeletal muscles lack automaticity and the electrical properties are different. Hence, it is not possible to construct a 'beating' heart with them. However, they (leg muscles) may be instructed to go back in time: to form 'stem cells'. These stem cells may then be groomed to grow into cardiac myocytes, by the proper expression of respective genes.
What do heart muscle cells look like?
The cells of heart muscle are striated (like stripes on a tie) as is skeletal muscle. Cardiac muscle is a type of involuntary striated muscle found only in the walls of the heart. They can contract but also carry an action potential (i.e. conduct electricity), like the neurons that constitute nerves. Some of the cells have the ability to generate an action potential, known as cardiac muscle automaticity. That is they beat on their own and in union with each other.
Why couldn't your heart have cardiac tissue?
Cardiac muscle, like other muscles, can contract, but it can also carry an action potential (i.e. conduct electricity), like the neurons that constitute nerves. Furthermore, some of the cells have the ability to generate an action potential, known as cardiac muscle automaticity. (Some cells can make the heart beat on its own.) This doesn't occur in any other type of muscle tissue. This ability can keep the heart pumping even under disease conditions.
