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Biology · PYQ NEET UG 2025

हिन्दी

Cardiac activities of the heart are regulated by : A. Nodal tissue B. A special neural centre in the medulla oblongata C. Adrenal medullary hormones D. Adrenal cortical hormones Choose the correct answer from the options given below :

  1. A, B and C Only
  2. A, B, C and D
  3. A, C and D Only
  4. A, B and D Only

Correct answer · Option 1

A, B and C Only

Explanation

Cardiac activity is auto-regulated by nodal tissue (myogenic heart), and can be moderated by the neural center in medulla oblongata and adrenal medullary hormones.
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