Tag: gas exchange in humans

Questions Related to gas exchange in humans

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

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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'.

Choose the correct answer from the alternatives given.
In which of the following structures vocal cords are located?

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

  1. Oesophagus

  2. Larynx

  3. Pharynx

  4. Bronchi

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Correct Option: B
Explanation:

The vocal cords are folds of membranous tissue that are located within the larynx at the top of the trachea. Their edges vibrate in an airstream to produce voice. So, the correct option is 'Larynx'.