Respiratory system
provides the fundamental ability to……..
a) breath
b) excrete
c) pump
d) think
Which of the following is the only visible part of the respiratory system?
a) larynx
b) pharynx
c) lungs
d) none of these
Explanation: nose is only externally visible part
The human nose consists of which of the following?
a) bones
b) cartilage
c) fibro tissues
d) all of these
The external feature of the nose depends on which bone?
a) facial bones
b) maxilla
c) cranium
d) ethmoid bone
Explanation: a square bone at the root of the nose, forming part of the cranium, and having many perforations through which the olfactory nerves pass to the nose.
In which of the following part of the respiratory system, hairs are present?
a) nostrils
b) pharynx
c) larynx
d) bronchi
Explanation: hairs help in the filtration of air
Both the nostrils and nasal cavity are lined by…….
a) mucous membrane
b) cilia
c) collagen
d) both a and b
Explanation: these prevent the entry of pathogen
