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Define the Following: Sneeze Reflex - Biology

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प्रश्न

Define the following:

Sneeze Reflex

व्याख्या

उत्तर

Sneeze Reflex: It is a type of reflex whose stimulus is in the nasal passage which causes spasmodic contraction of expiratory muscles that forcefully expel the air through the nasal passage.

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पाठ 19: Respiratory System - Exercise [पृष्ठ १७६]

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फ्रँक Biology [English] Class 9 ICSE
पाठ 19 Respiratory System
Exercise | Q 9.2 | पृष्ठ १७६

संबंधित प्रश्‍न

Differentiate between the following pairs on the basis of the aspect given in the brackets.

Photosynthesis and Respiration (Reactants)


Give Suitable Explanation for the Following :

Breathing through the nose is said to be healthier than through the mouth.


Given alongside is a diagrammatic sketch of a kind of part in human lungs.

What do the arrows 5 and 6 indicate?


The volume of air in the lungs and the rate at which it is exchanged during inspiration and expiration was measured.

The following diagram shows a group of the lung volumes and capacities.

Study the diagram carefully and explain briefly the following :

 Expiratory reserve volume (ERV)


Put a tick (✓) against the most appropriate alternative in the following statement.

The process during which food is oxidised and energy is released is called


Find the odd one out. Give a reason for your choice.

skin, heart, lung, liver, kidney


Define the following:

Cough Reflex


Name the following:

Anterior most part of nasal chamber bearing hairs.


Name the following:

A film covering the alveoli of the lungs and lowers the surface tension.


Name the following:

High breathing rate.


Complete the following statement by choosing the correct alternative from those given below.

Normal breathing is termed as ______.


Give the functions of the following:

Alveoli


Very short answer question.

Why does trachea have ‘C’ shaped rings of cartilage?


Very short answer question.

Name the organ which prevents the following the entry of food into the trachea while eating.


Which of the following is the main function of the 'C' shaped cartilages of trachea?


The part where the exchange of gases occurs during respiration is:


Carefully study the diagram of the human respiratory system with labels A, B, C and D. Select the option which gives correct identification and main function and /or characteristic.


The windpipe is called the larynx.


Match the following

i. Alveoli a. Yeast
ii. Ethanol b. Gaseous exchange
iii. Diffusion c. Amino acids
iv. Protein d. Perfume

Which of the following statements is incorrect regarding respiratory system?


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