Tag: the mechanism of breathing

Questions Related to the mechanism of breathing

Which structure gives us ability to speech?

zoology the age of adolescence human respiration the mechanism of breathing breathing and its movements

  1. Epiglottis

  2. Vocal cord

  3. Larynx

  4. Trachea

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Correct Option: B
Explanation:

The vocal cord has two small bands of muscle within the larynx. These muscles vibrate to produce the voice. It is a V shape inside larynx. When we talk, the vocal cord tightens up and move closer together and air from lungs forced between them and make then vibrate, producing the sound.

So the option B, Vocal cord is correct.

Which of the following statement is incorrect about nasopharynx?

zoology gas exchange in humans human respiration the mechanism of breathing breathing and its movements

  1. Internal nostrils opens into nasopharynx

  2. It is the passage for air only

  3. It is a portion of pharynx

  4. Nasopharynx opens through the glottis of the larynx region into the trachea

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Correct Option: A

Adam's apple is another name for

zoology gas exchange in humans human respiration the mechanism of breathing breathing and its movements

  1. Sound box in birds

  2. Sound box in man

  3. Epiglottis

  4. Thyroid cartilage

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Correct Option: A

Epiglottis is meant for protecting

zoology gas exchange in humans human respiration the mechanism of breathing breathing and its movements

  1. Oesophagus from entry of air

  2. Nasal chambers from entry of food

  3. Larynx from entry of food

  4. Teeth from caries

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Correct Option: C

The structure which prevents the entry of food into respiratory tract is

zoology gas exchange in humans human respiration the mechanism of breathing breathing and its movements

  1. Glottis

  2. Pharynx

  3. Epiglottis

  4. Larynx

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Correct Option: C

pH of succus entericus is

zoology gas exchange in humans human respiration the mechanism of breathing breathing and its movements

  1. 6.6

  2. 5.6

  3. 2.0

  4. 7.8

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Correct Option: D

Food does not enter windpipe due to structure called.

zoology gas exchange in humans human respiration the mechanism of breathing breathing and its movements

  1. Glottis

  2. Epiglottis

  3. pharynx

  4. Larynx

  5. Tonsils

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Correct Option: B

A person starts coughing suddenly while swallowing some food. It could be due to improper movement of.

zoology gas exchange in humans human respiration the mechanism of breathing breathing and its movements

  1. Neck

  2. Diaphragm

  3. Tongue

  4. Epiglottis

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Correct Option: D

What are correct about control of Broca area ?
1.Breathing 
2.Movement of vocal cords
3.Movement of teeth
4.Movement of tongue

zoology gas exchange in humans human respiration the mechanism of breathing breathing and its movements

  1. 1, 2, 3 correct

  2. 1, 2 correct

  3. 2, 4 correct

  4. 1, 3 correct

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Correct Option: C

Choose the correct answer from the alternatives given.
Which of the following is the cartilaginous structure that folds down to meet the uprising larynx to close off the airway during swallowing?

zoology gas exchange in humans human respiration the mechanism of breathing breathing and its movements

  1. Trachea

  2. Epiglottis

  3. Cricoid cartilage

  4. Thyroid cartilage

Show answer
Correct Option: B
Explanation:

A flap-like epiglottis closes the opening to the larynx during swallowing to prevent swallowed matter from entering the trachea (airway). So, the correct option is 'Epiglottis'.