Question

Which of the following statements define a myogenic heart?

• A. A heart with 4 chambers is called a myogenic heart.
• B. A heart in which the blood circulates twice is called a myogenic heart.
• C. A heart that does not require neural input to beat is called a myogenic heart.
• D. A heart that requires neural input to beat is called a myogenic heart.

Answer 1

The correct option is C A heart that does not require neural input to beat is called a myogenic heart.

A heart that does not require neural input to beat is called a myogenic heart. Human heart is myogenic and it consists of a modified muscular tissue that initiates the electrochemical impulse. The sino atrial node is the modified muscular tissue present in the right atrium.

Neurogenic heart is the heart that requires neural input to beat. Neurogenic heart is seen in mostly arthropods.
A human heart consists of 4 chambers i.e 2 atria and 2 ventricles. Mammals and birds have 4 chambered heart.
The circulation in which the blood moves twice through the heart is called double circulation.