Tag: human respiratory system

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Questions Related to human respiratory system

Multiple choice biology breathing and respiration regulation of breathing human respiratory system contro and disorders of respiration

Arytenoid cartilage occurs in

  1. Larynx

  2. Nose

  3. Hyoid

  4. Sternum
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The arytenoid cartilages are a pair of small cartilages, shaped roughly like three-sided pyramids, which are located toward the rear of the larynx and play a vital role in positioning and adjusting the vocal folds during speech.

So, the correct option is is 'Larynx'.

Multiple choice biology breathing and respiration regulation of breathing human respiratory system contro and disorders of respiration

Two fibro-elastic strands of larynx extend between.

  1. Thyroid and cricoid

  2. Thyroid and arytenoid cartilages

  3. Cricoid and tracheal cartilaginous ring

  4. Santorini and thyroid cartilages
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

The vocal cords (vocal folds) are two fibro-elastic bands located within the larynx. They stretch between the thyroid cartilage anteriorly and the arytenoid cartilages posteriorly.

Multiple choice zoology the respiratory system regulation of breathing human respiratory system contro and disorders of respiration

Congestion of lungs is one of the main symptoms in.

  1. Hypertension

  2. Angina

  3. Heart failure

  4. Coronary artery disease

  5. Atherosclerosis
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Congestion of the lungs (pulmonary edema) occurs when the heart cannot pump blood effectively, causing fluid to back up into the lungs. This is a classic symptom of congestive heart failure.

Multiple choice biology breathing and respiration regulation of breathing human respiratory system contro and disorders of respiration

Match the columns and find the correct combination.

I II
(a) Larynx (p) Lid of larynx
(b) Trachea (q) Air sacs
(c) Alveoli (r) Voice box
(d) Epiglottis (s) Wind pipe
(t) Common passage

  1. a-r, b-s, c-q, d-p

  2. a-r, b-t, c-q, d-p

  3. a-r, b-s, c-p, d-q

  4. a-r, b-s, c-q, d-t
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Larynx is the voice box (a-r), Trachea is the wind pipe (b-s), Alveoli are air sacs (c-q), and the Epiglottis is the lid of the larynx (d-p). Option A provides the correct mapping.

Multiple choice biology breathing and respiration regulation of breathing human respiratory system contro and disorders of respiration

_____ projects obliquely upwards behind the tongue and the hyoid bone, pointing dorsally.

  1. Epiglottis

  2. Glottis

  3. Larynx

  4. Pharynx
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation
    • The epiglottis is a large, leaf-shaped piece of cartilage lying on top of the larynx. It projects obliquely upwards behind the tongue and the hyoid bone, pointing dorsally.
    • During swallowing of food the larynx elevates, causing the epiglottis to fall on the glottis (opening into larynx) like a lid, closing it off, this prevents food from entering the windpipe (trachea). Hence The structure which prevents the entry of food particles into the respiratory passage is Epiglottis.
    • So, the correct answer is 'Epiglottis'.
    Multiple choice biology breathing and respiration regulation of breathing human respiratory system contro and disorders of respiration

    Choose the correct answer from the alternatives given.
    The structure which does not contribute to breathing movements in mammals is

    1. ribs

    2. diaphragm

    3. larynx

    4. abdominal muscles
    Reveal answer Fill a bubble to check yourself
    C Correct answer
    Explanation

    The process of breathing is divided into two phases: inspiration (inhalation) and expiration (exhalation). The diaphragm, ribs, external, the internal intercoastal muscles and the abdominal muscles that move the diaphragm are all involved in changing the size of the thoracic cavity either by contraction or relaxation thereby changing the air pressure and causing air to move in or out of the lungs. So, the correct option is 'larynx'.

    Multiple choice biology breathing and respiration regulation of breathing human respiratory system contro and disorders of respiration

    Which of the following options is incorrect about the larynx (sound box)?

    1. It is a bony box.

    2. Glottis is the opening into the larynx.

    3. During swallowing of food glottis is covered by epiglottis to prevent food entry into the larynx.

    4. All of these.
    Reveal answer Fill a bubble to check yourself
    A Correct answer
    Explanation
    • Larynx is a cartilaginous box containing nine pieces of cartilages.
    • Glottis is the opening from where esophagus and trachea gets seperated.
    • To prevent food from entering into the larynx while swallowing, the epiglottis covers the opening of the larynx.
    • So, the correct option is (A).
    Multiple choice biology breathing and respiration regulation of breathing human respiratory system contro and disorders of respiration

    Signet ring cartilage of larynx is

    1. Cricoid

    2. Arytenoid

    3. Thyroid

    4. All of the above
    Reveal answer Fill a bubble to check yourself
    A Correct answer
    Explanation

    The cricoid cartilage is a ring of hyaline cartilage located at the inferior aspect of the larynx and is the only complete ring of cartilage around the trachea. It has the shape of a signet ring, with a broad portion posterior to the airway (lamina of cricoid cartilage) and a narrower portion circling anteriorly (arch of cricoid cartilage).