Question:
In human respiratory system, when a person breathes in, the position of ribs and diaphragm will be:
In human respiratory system, when a person breathes in, the position of ribs and diaphragm will be:
Updated On: Dec 11, 2024
- lifted ribs and curve/dome shaped diaphragm.
- lifted ribs and flattened diaphragm.
- relaxed ribs and flattened diaphragm.
- relaxed ribs and curve/dome shaped diaphragm.
Hide Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
During inhalation:
• The ribs are lifted upward and outward, increasing the chest cavity volume.
• The diaphragm contracts and flattens, creating a vacuum that draws air into the lungs.
Was this answer helpful?
0
0
Top Questions on The respiratory system
- Give reasons for the following:
(i) Alveoli in lungs are richly supplied with blood capillaries.
(ii) Respiratory pigment in the blood takes up oxygen and not carbon dioxide.
(iii) During anaerobic respiration, a 3-carbon molecule is formed as an end product instead of CO2 in human beings.
OR
(i) Name the movements that occur all along the gut in human digestive system. How do they help in digestion?
(ii) Where is bile juice stored in human body? List two roles of bile juice.- CBSE Class X - 2024
- Science
- The respiratory system
- (i) Why is respiratory pigment needed in multicellular organisms with large body size?
(ii) Give reasons for the following:
(a) Rings of cartilage are present in the throat.
(b) Lungs always contain a residual volume of air.
(c) The diaphragm flattens and ribs are lifted up when we breathe in.
(d) Walls of alveoli contain an extensive network of blood vessels.- CBSE Class X - 2024
- Science
- The respiratory system
- Given below are two statements: One is labelled as Assertion A and the other is labelled as Reason R.
Assertion A: During the transportation of gases, about 20-25 percent of \(CO_2\) is carried by Haemoglobin as carbamino-haemoglobin.
Reason R: This binding is related to high p \(CO_2\) and low p \(O_2\) in tissues.
In the light of the above statements, choose the correct answer from the options given below- NEET (UG) - 2024
- Biology
- The respiratory system
- Match List I with List II :Choose the correct answer from the options given below :
List - I List – II A. Residual Volume i. Maximum volume of air that can be breathed in after forced expiration B. Vital Capacity ii. Volume of air inspired or expired during normal respiration C. Expiratory Capacity iii. Volume of air remaining in lungs after forcible expiration D. Tidal Volume iv. Total volume of air expired after normal inspiration - NEET (UG) - 2024
- Biology
- The respiratory system
- The amount of air that moves in or out of the lungs with each respiratory cycle is:
- GPAT - 2024
- Human Anatomy and Physiology
- The respiratory system
View More Questions
Questions Asked in CBSE X exam
- Why was the need for decentralization recognized in the Indian Constitution?
- CBSE Class X - 2024
- Federalism
- An Atal Tinkering Lab (ATL) provides activity-based learning in the identified school across the country where young minds can give shape to their ideas for societal problems. Explain in your own words, how using such a 3D printer can be beneficial to an educational institution, from a design, innovation, and thinking perspective.
- CBSE Class X - 2024
- Prototyping Methods
- You have been given an assignment to deliver a presentation in front of the whole class. What are the key communication skills that you should maintain and why?
- CBSE Class X - 2024
- Communication Skills
- “Hero” video is a prominent and engaging video placed at the top of a website. It’s designed to capture visitor’s attention immediately, typically showcasing key messages, products, or brand stories in a visually appealing and impactful way. Briefly explain about the type of animation medium represented by the “Hero” video. What in your opinion, resulted in such a remarkable impact of the video?
- CBSE Class X - 2024
- Animation
- Explain how “timing” plays a critical role in establishing a character’s nature, personality, mood, and emotion.
- CBSE Class X - 2024
- Animation
View More Questions