Why Does Our Heart Beat Faster When We Are Scared ? :: āĻāĻŽāĻŋ āĻāϝāĻŧ āĻĒāĻžāϞ⧠āĻšā§āĻĻāĻĒāĻŋāĻŖā§āĻĄ āĻāĻŋāϝāĻŧ āĻŦā§āĻāĻŋ āĻā§ā§°ā§ āϧāĻĒāϧāĻĒ āĻā§°ā§ ?
Why Does Our Heart Beat Faster When We Are Scared ?
Fear activates the body's fight-or-flight response. The brain sends signals to the adrenal glands. Adrenaline is released into the blood. This hormone makes the heart pump faster and harder. More blood goes to muscles and important organs. This prepares the body to react quickly.
Words: i. Brain ii. Adrenaline, iii. Heart, iv. Fight or Flight, v. Faster Blood Flow
Key Point: The heart beats faster when we are scared because adrenaline prepares the body for quick action.
āĻāĻŽāĻŋ āĻāϝāĻŧ āĻĒāĻžāϞ⧠āĻšā§āĻĻāĻĒāĻŋāĻŖā§āĻĄ āĻāĻŋāϝāĻŧ āĻŦā§āĻāĻŋ āĻā§ā§°ā§ āϧāĻĒāϧāĻĒ āĻā§°ā§ ?
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MCQ on “Why Does Our Heart Beat Faster When We Are Scared ?”
1. What activates the fight-or-flight response ? āĻāĻŋ āĻŦāϏā§āϤā§ā§ąā§ fight-or-flight āĻĒā§āϰāϤāĻŋāĻā§ā§°āĻŋāϝāĻŧāĻž āϏāĻā§ā§°āĻŋāϝāĻŧ āĻā§°ā§ ?
A. Hunger B. Fear C. Sleep D. Exercise
Ans: B. Fear
Explanation: Fear triggers the body's emergency response system. āĻŦā§āϝāĻžāĻā§āϝāĻž: āĻāϝāĻŧā§ āĻļā§°ā§ā§°ā§° āĻā§°ā§ā§°ā§ āĻĒā§āϰāϤāĻŋāĻā§ā§°āĻŋāϝāĻŧāĻž āϏāĻā§ā§°āĻŋāϝāĻŧ āĻā§°ā§āĨ¤
2. Which organ sends signals to the adrenal glands ? āĻā§āύ āĻ āĻāĻāĻ āĻāĻĄā§ā§°āĻŋāύā§āϞ āĻā§ā§°āύā§āĻĨāĻŋāϞ⧠āϏāĻāĻā§āϤ āĻĒāĻ āĻŋāϝāĻŧāĻžāϝāĻŧ ?
A. Heart B. Liver C. Brain D. Kidney
Ans: C. Brain
Explanation: The brain controls the body’s response to fear. āĻŦā§āϝāĻžāĻā§āϝāĻž: āĻŽāĻāĻā§ āĻāϝāĻŧā§° āϏāĻŽāϝāĻŧāϤ āĻļā§°ā§ā§°ā§° āĻĒā§āϰāϤāĻŋāĻā§ā§°āĻŋāϝāĻŧāĻž āύāĻŋāϝāĻŧāύā§āϤā§ā§°āĻŖ āĻā§°ā§āĨ¤
3. Which hormone is released when we are scared ? āĻāĻŽāĻŋ āĻāϝāĻŧ āĻĒāĻžāϞ⧠āĻā§āύ āĻšā§°āĻŽā§āύ āύāĻŋāĻāϏā§āϤ āĻšāϝāĻŧ ?
A. Insulin B. Adrenaline C. Calcium D. Vitamin D
Ans: B. Adrenaline
Explanation: Adrenaline prepares the body for quick action. āĻŦā§āϝāĻžāĻā§āϝāĻž: āĻāĻĄā§ā§°āĻŋāύā§āϞāĻŋāύ⧠āĻļā§°ā§ā§°āĻ āĻĻā§ā§°ā§āϤ āĻāĻžā§°ā§āϝ⧰ āĻŦāĻžāĻŦā§ āĻĒā§ā§°āϏā§āϤā§āϤ āĻā§°ā§āĨ¤
4. What does adrenaline make the heart do ? āĻāĻĄā§ā§°āĻŋāύā§āϞāĻŋāύ⧠āĻšā§āĻĻāĻĒāĻŋāĻŖā§āĻĄāĻ āĻāĻŋ āĻā§°āĻŋāĻŦāϞ⧠āĻŦāĻžāϧā§āϝ āĻā§°ā§ ?
A. Beat slower B. Stop beating C. Pump faster and harder D. Sleep
Ans: C. Pump faster and harder
Explanation: Adrenaline increases heart activity. āĻŦā§āϝāĻžāĻā§āϝāĻž: āĻāĻĄā§ā§°āĻŋāύā§āϞāĻŋāύ⧠āĻšā§āĻĻāĻĒāĻŋāĻŖā§āĻĄā§° āĻāĻžāĻŽ āĻŦā§āĻĻā§āϧāĻŋ āĻā§°ā§āĨ¤
5. More blood goes to the ______ during fear. āĻāϝāĻŧā§° āϏāĻŽāϝāĻŧāϤ āĻ āϧāĻŋāĻ ā§°āĻā§āϤ ______ āϞ⧠āϝāĻžāϝāĻŧāĨ¤
A. Hair B. Nails C. Muscles and important organs D. Teeth
Ans: C. Muscles and important organs
Explanation: The body sends more blood where quick action is needed. āĻŦā§āϝāĻžāĻā§āϝāĻž: āĻļā§°ā§ā§°ā§ āĻĻā§ā§°ā§āϤ āĻāĻžā§°ā§āϝ⧰ āĻŦāĻžāĻŦā§ āĻĒā§āĻļā§ āĻā§°ā§ āĻā§ā§°ā§āϤā§āĻŦāĻĒā§āϰā§āĻŖ āĻ
āĻāĻāϞ⧠āĻ
āϧāĻŋāĻ ā§°āĻā§āϤ āĻĒāĻ āĻžāϝāĻŧāĨ¤
6. Why does the heart beat faster during fear ? āĻāϝāĻŧā§° āϏāĻŽāϝāĻŧāϤ āĻšā§āĻĻāĻĒāĻŋāĻŖā§āĻĄ āĻāĻŋāϝāĻŧ āĻŦā§āĻāĻŋ āĻā§ā§°ā§ āϧāĻĒāϧāĻĒ āĻā§°ā§ ?
A. To sleep B. To prepare for quick action C. To digest food D. To cool the body
Ans: B. To prepare for quick action
Explanation: Faster heartbeat helps the body react quickly. āĻŦā§āϝāĻžāĻā§āϝāĻž: āĻĻā§ā§°ā§āϤ āĻšā§āĻĻāϏā§āĻĒāύā§āĻĻāύ⧠āĻļā§°ā§ā§°āĻ āϤā§āĻā§āώāĻŖāĻžā§ āĻĒā§āϰāϤāĻŋāĻā§ā§°āĻŋāϝāĻŧāĻžā§° āĻŦāĻžāĻŦā§ āϏāĻšāĻžāϝāĻŧ āĻā§°ā§āĨ¤
7. What is the body's emergency response called ? āĻļā§°ā§ā§°ā§° āĻā§°ā§ā§°ā§ āĻĒā§āϰāϤāĻŋāĻā§ā§°āĻŋāϝāĻŧāĻžāĻ āĻāĻŋ āĻā§ā§ąāĻž āĻšāϝāĻŧ ?
A. Sleep response B. Fight or Flight response C. Digestive response D. Memory response
Ans: B. Fight or Flight response
Explanation: This response prepares the body during danger or fear. āĻŦā§āϝāĻžāĻā§āϝāĻž: āĻāĻ āĻĒā§āϰāϤāĻŋāĻā§ā§°āĻŋāϝāĻŧāĻžāĻ āĻŦāĻŋāĻĒāĻĻ āĻŦāĻž āĻāϝāĻŧā§° āϏāĻŽāϝāĻŧāϤ āĻļā§°ā§ā§°āĻ āĻĒā§ā§°āϏā§āϤā§āϤ āĻā§°ā§āĨ¤
8. Which of these increases during fear ? āĻāϝāĻŧā§° āϏāĻŽāϝāĻŧāϤ āϤāϞ⧰ āĻā§āύāĻā§ āĻŦā§āĻĻā§āϧāĻŋ āĻĒāĻžāϝāĻŧ ?
A. Heartbeat B. Sleep C. Hunger D. Hair growth
Ans: A. Heartbeat
Explanation: The heart beats faster during fear. āĻŦā§āϝāĻžāĻā§āϝāĻž: āĻāϝāĻŧā§° āϏāĻŽāϝāĻŧāϤ āĻšā§āĻĻāĻĒāĻŋāĻŖā§āĻĄ āĻŦā§āĻāĻŋ āĻĻā§ā§°ā§āϤ āϧāĻĒāϧāĻĒ āĻā§°ā§āĨ¤
9. Adrenaline is released into the ______. āĻāĻĄā§ā§°āĻŋāύā§āϞāĻŋāύ ______ āϤ āύāĻŋāĻāϏā§āϤ āĻšāϝāĻŧāĨ¤
A. Bones B. Blood C. Hair D. Skin
Ans: B. Blood
Explanation: Adrenaline travels through the blood. āĻŦā§āϝāĻžāĻā§āϝāĻž: āĻāĻĄā§ā§°āĻŋāύā§āϞāĻŋāύ ā§°āĻā§āϤ⧰ āĻŽāĻžāĻā§ā§°ā§ āĻāϞāĻžāĻāϞ āĻā§°ā§āĨ¤
10. Which organ pumps blood through the body ? āĻā§āύ āĻ āĻāĻāĻ āĻļā§°ā§ā§°āϤ ā§°āĻā§āϤ āĻĒāĻžāĻŽā§āĻĒ āĻā§°ā§ ?
A. Brain B. Lung C. Heart D. Eye
Ans: C. Heart
Explanation: The heart pumps blood throughout the body. āĻŦā§āϝāĻžāĻā§āϝāĻž: āĻšā§āĻĻāĻĒāĻŋāĻŖā§āĻĄāĻ āϏāĻŽāĻā§ā§° āĻļā§°ā§ā§°āϤ ā§°āĻā§āϤ āĻĒāĻžāĻŽā§āĻĒ āĻā§°ā§āĨ¤