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Sin is a root word meaning sinus

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What is the most important structure of the human heart?

It is supposed to be the sinus node and the conducting tissue. It includes the AV node and bundle of HIS. The sinus node generate the impulse in the heart for contraction. The AV node and bundle of HIS transmits the impulse to the ventricles.


In mammals and birds there's no sinus venosus instead they have the?

In mammals and birds, the sinus venosus has evolved into the right atrium of the heart. This structure serves to collect and regulate blood flow entering the heart before it is pumped to the rest of the body.


What is Sinus Bradycardia?

Sinus bradycardia is a condition where the heart beats slower than normal due to the sinus node, the heart's natural pacemaker, sending electrical signals at a slower rate. It is typically considered normal in well-trained athletes or during sleep, but can also be present in some medical conditions or as a side effect of certain medications. Treatment is usually unnecessary unless it causes symptoms or complications.


What is the outer part of a node?

The outer part of a node is often referred to as the parent node or the root node. It is the main starting point of a tree data structure, from which all other nodes branch out. The parent node does not have a direct parent, hence why it is considered the outer part of the node hierarchy.


What is the function of the node in stem?

In stem, a node is where leaves or branches are attached to the main stem. It serves as a point of attachment and growth for various plant parts, facilitating the transport of water, nutrients, and hormones throughout the plant. Nodes play a crucial role in plant development and growth processes.

Related Questions

What controls the firing of the sinus node to trigger the start of the cardiac cycle?

Sinus node


Which heart structure does the pacemaker substitute?

The SA Node.


What is the internal pacemaker of the heart called?

SA node (Sinus Node)


What is natures pacemaker?

sinus node


What is a sinus rhythm?

When the heart is functioning properly the sinus node controls the firing of action potential that contract the heart. When the sinus node dominates the heart will contract in a synchronized and effective rhythm This is called sinus rhythm.


What is the internal pacemaker of the human heart called?

SA node (Sinus Node)


What is sinus arrest?

When the Sino-atrial node fails momentarily to initiate an impulse, sinus arrest occurs. When the sino-atrial node fails momentarily to initiate an impulse, sinus arrest occurs.


What is the most important structure of the human heart?

It is supposed to be the sinus node and the conducting tissue. It includes the AV node and bundle of HIS. The sinus node generate the impulse in the heart for contraction. The AV node and bundle of HIS transmits the impulse to the ventricles.


In mammals and birds there's no sinus venosus instead they have the?

In mammals and birds, the sinus venosus has evolved into the right atrium of the heart. This structure serves to collect and regulate blood flow entering the heart before it is pumped to the rest of the body.


What is sinus braydicardia?

Sinus bradycardia is basically a decreased heart rate. It originates from the sinus node and will be under 60 beats per minute.


Where in the heart is the heart beat controlled?

Simple answer is sinus node


What is difference between sinus arrest exit block and sinus arrhythmia?

Sinus activiy is really not recorded on the ECG(EKG) only the atria's response to it. Hence, Sinus Arrest and Sinus Exit Block are determined on the basis of what we can see. The absense of the P wave and it's recurance at the next expected intereval is considered a Sinus Exit Block; meaning the sinus node did its job, but the impluse was blocked form the rest of the atria. The mechanism of such blocking is not fully understood at this point In sinus arrest the the pause is not accurate to the next expected cardiac cycle thus is considered a sinus arrest - meaning that something stopped the sinus node activity for a time (usually just seconds). Of the two Sinus Exit Block carries the least risk of symptoms for the patient.