single unit smooth muscle
Yes, the heart is made of muscles, however, these muscles do not all contract at one time. They contract in synchrony and when they contract they squeeze the chamber they surround such are the atria or ventricle and blood is pushed out of the chamber.
The Sinoatrial Node sends a wave of electric impulses through the heart, which causes both atria to contract.
The point in the Purkinje system where the impulse is temporarily delayed is at the atrioventricular (AV) node. This delay allows the atria to fully contract and pump blood into the ventricles before the impulse is transmitted to the ventricles, ensuring efficient blood flow through the heart.
a nerve impulse
An Impulse
An Impulse
An anti competitive impulse is given to a company through the profit motive.
An anti competitive impulse is given to a company through the profit motive.
The movement of electrical impulses in the heart coordinates the contraction of its chambers. The impulses initiate the contraction by stimulating the muscle cells, causing them to contract in a coordinated way. This results in the rhythmic pumping action that drives blood flow through the heart and to the rest of the body.
An electrical impulse will travel through a neuron.
bubble up and popno one knowsthe signal causes the atria to contract.
An anti competitive impulse is given to a company through the profit motive.