Question

End bulbs of Krause perceive the sensation of
A. Touch
B. Heart
C. Cold
D. Pressure

Answer 1

Hint:-The senses which are received from the skin and mucous membrane have come under
the mixed sensory category which is called as somatosensation and it is also called as a tactile sense that
is commonly called as a sense of touch and this somatosensation are generally occur all over the
exterior of the body, and sometimes they present In the interior of the body.

Complete step-by-step solution:-
Sensory receptors are classified into five categories and they are mechanoreceptors,
thermoreceptors, proprioceptors, pain receptors, and chemoreceptors.
A. Touch: In the body generally the sensation of touch is perceived by a certain type of
cells which are named Messiner corpuscles, and this are receptors that are found on the
outer surface of the dermis. So this is the wrong answer.
B. Heat: At the same time heat is a type of sensation, which is generally perceived by some
type of special receptors that are found in the very deep layers of the dermis, and the name of the receptors are Ruffini’s corpuscles. So this is the wrong answer.
C. Cold: In general the receptors responsible for feeling the sensation of warmth and cold
are thermoreceptors that are commonly found in the brain.
Among them, the receptors which are useful for sensing the cold are Krause end bulbs,
where these receptors are defined by a capsule and they have nerve endings that are
located in the dermis. So this is the right answer.
D. Pressure: The receptors which help perceive the sensation of pressure are Pacinian
corpuscles which are located in the dermis that enclose the nerve endings.
So, the right option is C.

Note:- Krause end bulb is the oval or cylindrical body that is enclosed by a capsule which generally formed by an expansion of connective tissue sheath, and they also contain the axis cylinder core, the areas of Krause end bulbs are conjunctiva of eyes, and mucous membrane of lips, tongue, etc.