Question

1. (a) Make a flowchart showing cardiac impulse
conduction using appropriate terms given in
bracket.
[SAN, Right atrium, AVN, AV Bundle, Bundle of
His, Ventricle]​

Answer 1

Answer :

1. SAN
2. AVN
3. AV BUNDLE
4. BUNDLE OF HIS

Answer 2

Solution:

The flowchart showing cardiac impulse conduction is as following:

$\text{SA node} \rightarrow \text{AVnode} \rightarrow \text{AV bundle} \rightarrow \text{Bundle of His} \rightarrow \text{Ventricle}$

• The Cardiac impulse is generated by the SA node. It then spread throughout the atria.

• Then the impulse enters the ventricles through atrioventricular node, or AV node.

• The impulses then enter the base of the ventricle at the Bundle of His and then follow the left and right bundle branches along the interventricular septum.  

• The bundle branches then divide into an extensive system of Purkinjee fibers that conduct the impulses throughout the ventricles.