Question

A heart is said to be myogenic, when it has pacemaker

• A. Originating in motor nerves present in the heart muscles.
• B. Originating in motor nerves present near the heart.
• C. Made up of specialized muscle tissues and located in the heart itself.
• D. Made up of specialized muscle tissues and located near the heart.

Answer 1

The correct option is C Made up of specialized muscle tissues and located in the heart itself.

The myogenic heart is the heart which helps contract on their own without any neurogenic response. They have a pacemaker which regulates the conduction of impulse. It is made up of specialised muscle tissues and located in the heart itself. Calcium ions play a major role in contraction and relaxation of heart.

So, the correct answer is option C.