Question

Merkel’s discs are _______ receptors.
A. Calco
B. Frigido
C. Tango
D. Gustato

Answer 1

Hint: Merkel's discs are tango receptors. They are present in the cells of basal epidermis of the skin store neuropeptides, which are released to associated nerve endings in response to the pressure. It also detects sustained touch as well as pressure.

Complete answer:
OPTION-A- CALCO
Calco receptors are receptors which are sensitive to heat.
OPTION-B-FRIGIDO
Frigido receptors are receptors which are stimulated by cold.
OPTION-C-TANGO
The tactile receptors on the skin are also called tango receptors. These are further classified into six types which include –
> Free nerve endings,
> Root hair plexus,
> Merkel's discs,
> Meissner's corpuscles,
> Pacinian corpuscles and
> Ruffini corpuscles.
The free nerve endings are situated between epidermal cells. These nerve endings are sensitive to both touch as well as pressure.
The root hair plexus is made up of free nerve endings which detect touch along with hair movement.
Merkel's discs are located in the lower epidermal layer of the glabrous or hairless skin. These receptors respond to fine touch as well as pressure.
 Meissner's corpuscles are sensitive to light touch along with vibrations.
Pacinian corpuscles are large receptors located in external genitalia of the skin. These receptors are sensitive to deep pressure as well as high-frequency vibrations.
Ruffini corpuscles are sensitive to pressure as well as distortions of the skin.
OPTION-D-GUSTATO
Tongue is also called as Gustato receptor and is included as receptor for taste. The receptor for gustatory sensation are located in taste bud on the tongue

So, the correct answer to the question is option C.

Note:
Human skin is made of various respirators sensitive to different things. The Tango receptor is a cutaneous receptor that responds to touch as well as pressure.