Question:
Identify the correct option
Statement – I: The contraction of internal intercostals muscles and lateral abdominal muscles help in forced expiration.
Statement – II: The contraction of phrenic muscles increases the volume of the thoracic cavity in antero-posterior axis.
Identify the correct option
Statement – I: The contraction of internal intercostals muscles and lateral abdominal muscles help in forced expiration.
Statement – II: The contraction of phrenic muscles increases the volume of the thoracic cavity in antero-posterior axis.
Statement – I: The contraction of internal intercostals muscles and lateral abdominal muscles help in forced expiration.
Statement – II: The contraction of phrenic muscles increases the volume of the thoracic cavity in antero-posterior axis.
Show Hint
Phrenic nerve controls the diaphragm—key muscle for inspiration; forced expiration uses abdominal muscles.
Updated On: May 9, 2025
- Statement I and II are correct.
- Statement I is wrong and II is correct.
- Statement I is correct and II is wrong.
- Statement I and II are wrong.
Hide Solution
Verified By Collegedunia
The Correct Option is A
Solution and Explanation
Both statements are scientifically accurate. During forced expiration, the internal intercostals and abdominal muscles contract to push air out. Simultaneously, contraction of the diaphragm (controlled by the phrenic nerve) increases the thoracic cavity’s volume antero-posteriorly during inspiration.
Was this answer helpful?
0
0
Top Questions on The respiratory system
- Which of the following interventions facilitates the removal of airway secretions collected centrally?
- CUET (PG) - 2025
- MPT
- The respiratory system
- Which of the following is a non-modifiable risk factor for the development of COPD?
- CUET (PG) - 2025
- MPT
- The respiratory system
- Arrange the following in the correct sequence of branching in conducting zone and respiratory zone of respiratory passage.
(A) Alveolar sacs
(B) Bronchi
(C) Bronchioles
(D) Trachea
(E) Alveolar ducts
- CUET (PG) - 2025
- MPT
- The respiratory system
- The TCA cycle starts with the condensation of acetyl group with
- KCET - 2025
- Biology
- The respiratory system
- Which of the following is the primary site of gaseous exchange in the human respiratory system?
- MHT CET - 2025
- Biology
- The respiratory system
View More Questions
Questions Asked in AP EAPCET exam
- In a series LCR circuit, the voltages across the capacitor, resistor, and inductor are in the ratio 2:3:6. If the voltage of the source in the circuit is 240 V, then the voltage across the inductor is
- AP EAPCET - 2025
- Electromagnetic induction
- 0.25 moles of $ \text{CH}_2\text{FCOOH} $ was dissolved in $ 0.5 \, \text{kg} $ of water. The depression in freezing point of the resultant solution was observed as $ 1^\circ \text{C} $. What is the van't Hoff factor? ($ K_f = 1.86 \, \text{K kg mol}^{-1} $)
- AP EAPCET - 2025
- Colligative Properties
- At $T(K)$, the vapor pressure of water is $x$ kPa. What is the vapor pressure (in kPa) of 1 molal solution containing non-volatile solute?
- AP EAPCET - 2025
- Colligative Properties
- At 300 K, vapour pressure of pure liquid A is 70 mm Hg. It forms an ideal solution with liquid B. Mole fraction of B = 0.2 and total vapour pressure of solution = 84 mm Hg. What is vapour pressure (in mm) of pure B?
- AP EAPCET - 2025
- Colligative Properties
- A 1% (w/v) aqueous solution of a certain solute is isotonic with a 3% (w/v) solution of glucose (molar mass 180 g mol$^{-1}$). The molar mass of solute (in g mol$^{-1}$) is
- AP EAPCET - 2025
- Colligative Properties
View More Questions