AIIMS 2014
- Exam
- AIIMS
- Year
- 2014
- Subject
- Zoology
- Chapter
- Body Fluids and Circulation
AIIMS 2014 · Zoology · Body Fluids and Circulation
Assertion : Human heart is myogenic. Reason: The contraction is...
Assertion : Human heart is myogenic.
Reason: The contraction is initiated by a specialized patch of modified heart muscles without requiring stimulation from nerve cells.
Options
- AIf both assertion and reason are true and reason is the correct explanation of assertion.
- BIf both assertion and reason are true but reason is not the correct explanation of assertion.
- CIf assertion is true but reason is false.
- DIf both assertion and reason are false.
Correct answer
A. If both assertion and reason are true and reason is the correct explanation of assertion.
Step-by-step solution
The mammalian heart is myogenic. It means the heart beat originates from a specialised muscles (nodal tissue). It is regulated by the nerves.