Sensory Reception and Processing(Nose,Tongue) Questions in English

(D) The upper surface of the tongue has small projections called papillae.
There are $4$ main types of papillae found on the human tongue:
$1$. Fungiform papillae
$2$. Filiform papillae
$3$. Foliate papillae
$4$. Vallate (or Circumvallate) papillae
Therefore,the correct answer is $4$.

(D) The human body possesses $5$ primary sensory structures or sense organs that allow us to perceive the external environment. These are:
$1$. Eyes (for vision)
$2$. Ears (for hearing and balance)
$3$. Nose (for olfaction/smell)
$4$. Tongue (for gustation/taste)
$5$. Skin (for touch,pressure,pain,and temperature).
Therefore,the correct answer is $5$.

(B) The sense of smell is detected by specialized sensory cells known as olfactory receptors.
These receptors are located in the olfactory epithelium within the nasal cavity.
Gustatory receptors are for taste,auditory receptors are for hearing,and photoreceptors are for vision.

(B) The olfactory epithelium is a specialized epithelial tissue inside the nasal cavity that is involved in the sense of smell. It is composed of three main types of cells:
$1$. Olfactory receptor cells (bipolar neurons).
$2$. Supporting cells (sustentacular cells).
$3$. Basal cells (stem cells that replace receptor cells).
Therefore,the correct answer is $3$.