Class 7 Exam > Class 7 Questions > During exhalation, the ribs movea)Outwardsb)D...
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During exhalation, the ribs move
- a)Outwards
- b)Downwards
- c)Upwards
- d)To normal position
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
During exhalation, the ribs movea)Outwardsb)Downwardsc)Upwardsd)To nor...
During exhalation, i.e. releasing air during respiration, the ribs move downwards to reduce the volume of the thoracic cavity.
During exhalation, your diaphragm relaxes and moves upward into the chest cavity. The intercostal muscles between the ribs also relax to reduce the space in the chest cavity. As they relax they position the rib cage downwards and inwards.
During exhalation, your diaphragm relaxes and moves upward into the chest cavity. The intercostal muscles between the ribs also relax to reduce the space in the chest cavity. As they relax they position the rib cage downwards and inwards.
Most Upvoted Answer
During exhalation, the ribs movea)Outwardsb)Downwardsc)Upwardsd)To nor...
During exhalation, the ribs move downwards. This is because exhalation is the process of expelling air out of the lungs, which requires the contraction of the muscles in the chest and abdomen. This contraction causes the ribs to move downwards, which in turn decreases the volume of the chest cavity and increases the pressure within the lungs.
The movement of the ribs during exhalation can be further explained under the following headings:
1. Anatomy of the Rib Cage: The rib cage is made up of 12 pairs of ribs that extend from the thoracic vertebrae to the sternum in the front. The ribs are connected to the vertebral column at the back and to the sternum at the front by cartilage. The rib cage provides protection to the vital organs in the chest, such as the heart and lungs, and also facilitates the process of breathing.
2. Exhalation: Exhalation is the process of expelling air out of the lungs. During exhalation, the muscles in the chest and abdomen contract, which causes the volume of the chest cavity to decrease. This decrease in volume increases the pressure within the lungs, which forces the air out of the lungs and through the airways.
3. Movement of the Ribs during Exhalation: The contraction of the muscles in the chest and abdomen during exhalation causes the ribs to move downwards. This downward movement of the ribs decreases the volume of the chest cavity, which in turn increases the pressure within the lungs. This increased pressure forces the air out of the lungs and through the airways.
4. Importance of Rib Movement during Exhalation: The movement of the ribs during exhalation is important for efficient breathing. The downward movement of the ribs during exhalation allows the lungs to expel air effectively, which facilitates the exchange of gases (oxygen and carbon dioxide) between the lungs and the blood. This exchange of gases is crucial for maintaining the body's oxygen levels and removing carbon dioxide, which is a waste product of metabolism.
The movement of the ribs during exhalation can be further explained under the following headings:
1. Anatomy of the Rib Cage: The rib cage is made up of 12 pairs of ribs that extend from the thoracic vertebrae to the sternum in the front. The ribs are connected to the vertebral column at the back and to the sternum at the front by cartilage. The rib cage provides protection to the vital organs in the chest, such as the heart and lungs, and also facilitates the process of breathing.
2. Exhalation: Exhalation is the process of expelling air out of the lungs. During exhalation, the muscles in the chest and abdomen contract, which causes the volume of the chest cavity to decrease. This decrease in volume increases the pressure within the lungs, which forces the air out of the lungs and through the airways.
3. Movement of the Ribs during Exhalation: The contraction of the muscles in the chest and abdomen during exhalation causes the ribs to move downwards. This downward movement of the ribs decreases the volume of the chest cavity, which in turn increases the pressure within the lungs. This increased pressure forces the air out of the lungs and through the airways.
4. Importance of Rib Movement during Exhalation: The movement of the ribs during exhalation is important for efficient breathing. The downward movement of the ribs during exhalation allows the lungs to expel air effectively, which facilitates the exchange of gases (oxygen and carbon dioxide) between the lungs and the blood. This exchange of gases is crucial for maintaining the body's oxygen levels and removing carbon dioxide, which is a waste product of metabolism.
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During exhalation, the ribs movea)Outwardsb)Downwardsc)Upwardsd)To nor...
When we do the process of exhalation, our ribs move downwards and when we do the process of inhalation, our ribs move upward.
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During exhalation, the ribs movea)Outwardsb)Downwardsc)Upwardsd)To normal positionCorrect answer is option 'B'. Can you explain this answer?
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During exhalation, the ribs movea)Outwardsb)Downwardsc)Upwardsd)To normal positionCorrect answer is option 'B'. Can you explain this answer? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about During exhalation, the ribs movea)Outwardsb)Downwardsc)Upwardsd)To normal positionCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for During exhalation, the ribs movea)Outwardsb)Downwardsc)Upwardsd)To normal positionCorrect answer is option 'B'. Can you explain this answer?.
During exhalation, the ribs movea)Outwardsb)Downwardsc)Upwardsd)To normal positionCorrect answer is option 'B'. Can you explain this answer? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about During exhalation, the ribs movea)Outwardsb)Downwardsc)Upwardsd)To normal positionCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for During exhalation, the ribs movea)Outwardsb)Downwardsc)Upwardsd)To normal positionCorrect answer is option 'B'. Can you explain this answer?.
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