Topics:
Animal Physiology, Animal Refresher
Example of Forced Expiration
An example of forced expiration is:
- Vomition
- Cough
- Sneezing — Correct Answer
- Choke
Explanation:
Correct Answer: Sneezing
Sneezing is a classic example of forced expiration — a rapid, forceful expulsion of air through the nose (and mouth) to clear the nasal passages of irritants.
Breathing Manoeuvres Classification
- Forced expiration examples: Sneezing ✔, Coughing
- Vomition (Vomiting): Caused by reverse peristalsis — not primarily a respiratory event; involves abdominal muscles.
- Cough: Forced expiration to clear the trachea and lower airways (throat/trachea level); sneezing clears the nasal passages.
- Eructation: Elimination of rumen gases through the mouth (belching/burping) — involves relaxation of cardia, not forced expiration.
Note on Vomition
Vomition = caused by reverse peristalsis. Peristalsis moves ingesta forward through the GIT. Food movement forward = peristalsis + segmentation + pendular movements.
📚 About this Topic — Animal Physiology
This multiple choice question is from Animal Physiology, Animal Refresher. It has 4 options with a detailed explanation of the correct answer. Practice more MCQs from Animal Physiology to strengthen your preparation.
