0
What causes the ability of cardiac cells to spontaneously depolarize without being stimulated by a nerve?
Wiki User
∙ 11y ago
Automaticity
Wiki User
∙ 11y ago
Add your answer:
Earn +20 pts
What types of muscle tissue can depolarize spontaneously in the absence of any external stimulation?
cardiac muscle and smooth muscle?
Is hypoxia a cardiac arrhthmia?
Hypoxia-->pCO2 increase-->chemoreceptors are stimulated-->VMC stimulated-->trachyarrythmia
When the cardiac muscle cell is stimulated the cell is said to be?
The cardiac muscle cell is self stimulating and will beat.
During the normal cardiac cycle the artia contract when they are directly stimulated by the?
S A node
Which type of muscle can contract without being stimulated by the nervous system?
cardiac muscle tissue
Which muscle cells can not regenerate?
Cardiac muscle cells do not have the ability to regenerate.
Does cardiac muscle have neurogenic contractile ability?
No, it has myogenic contractile ability. Source: Physiology book
Cardiac muscle strength?
Cardiac muscle has the ability to rapidly adapt the strength of contraction based on how much stretch there is in the muscle.
What is functional synctium?
When single cell is stimulated to contract, it causes all other cardiac muschle cells to contract as well, hence synctium
What does circulatory collapse mean?
A sudden loss of effective blood flow due to cardiac and/or peripheral vascular factors which may reverse spontaneously (e.g., neurocardiogenic syncope; vasovagal syncope) or only with interventions (e.g., cardiac arrest).
What is autorhymicity?
Cardiac muscle has what is called "autorhymicity", if it is not stimulated by a higher level brain center, it will stimulate itself. Ayraayra: The correct term is acutally automaticity.
Which type of muscle CANNOT contract without being stimulated by the nervous system?
Cardiac muscle. Unlike skeletal and smooth muscle, the contraction of cardiac muscle is involuntary and requires stimulation from the nervous system. This ensures that the contractions of the heart are synchronized and coordinated.
