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Norepinephrine:
(1) Is released by sympathetic fibres
(2) Is released by parasympathetic fibres
(3) Increases the heart rate
(4) Decreases blood pressure
Which of the above said statements are correct?
Options
(a) (1) and (4)
(b) (1) and (3)
(c) (2) and (3)
(d) (2) and (4)
Correct Answer:
(1) and (3)
Explanation:
Norepinephrine is released by sympathetic fibres i.e., rapidly secreted in response to stress of any kind and during emergency situation. It increases the heart beat, the strength of heart contraction and the rate of respiration.
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Topics: Locomotion and Neural Control
(33)
Subject: Biology
(4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
- Which one of the following may require pollinators, but is genetically
- A column of water within xylem vessels of tall trees does not break under its weight
- Cardiac muscles are different from that of skeletal muscles as
- Energy is stored in the liver and muscles in the form of
- The concept of chemical evolution is based on
Topics: Locomotion and Neural Control (33)
Subject: Biology (4253)
Important MCQs Based on Medical Entrance Examinations To Improve Your NEET Score
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