Tag: regulation of breathing

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Questions Related to regulation of breathing

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

9 cartilages among them 3 are paired and 3 are unpaired occurs in

  1. Pharynx

  2. Larynx

  3. Glottis

  4. Bronchial tube
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation
  • The larynx (voice box) is a cartilaginous box which helps in sound production.
  • It consists of 9 cartilages among them 3 are paired and 3 are unpaired.
  • Vocal cords are composed of twin infoldings of mucous membrane stretched horizontally across the larynx. They vibrate, modulating the flow of air being expelled from the lungs during phonation.
  • Hence vocal cords occur in Larynx.
  • So, the correct answer is 'Larynx'.
Multiple choice biology breathing and respiration regulation of breathing human respiratory system contro and disorders of respiration

Match the columns.

Column I Column 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-t, b-s, c-p, d-q

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

  4. a-r, b-t, c-q, d-p
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 correctly matches these anatomical terms.

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'.