Question

Which of the following statements can be related to Bulbous corpuscle?
A. It is a slow adapting mechanoreceptor.
B. It is sensitive to skin stretch.
C. It helps in the sensation of position and control of movement.
D. All of the above

Answer 1

Tissue is a collection of cells with similar structures that work together as a unit. The intercellular matrix, a nonliving substance, fills the gaps between the cells. This might be plentiful in certain tissues while being scarce in others.

Complete Answer:
The Bulbous corpuscle, also known as the Ruffini ending or Ruffini corpuscle, is a slow-adapting mechanoreceptor found between the dermal papillae and the hypodermis in the cutaneous tissue. Angelo Ruffini was the inspiration for the name.
Ruffini corpuscles have elongated capsules with expanded dendritic ends. This spindle-shaped receptor is sensitive to skin stretch and aids in the kinesthetic sense of finger position and movement as well as control. They are most dense around the fingernails, where they detect items sliding along the skin's surface and allow for modification of hold on an object.
Ruffini corpuscles are unaffected by prolonged pressure and exhibit minimal adaptation. Ruffinian endings are found in the deep layers of the epidermis and detect mechanical deformation inside joints, especially angle change (with a specificity of up to 2.75 degrees) and continuous pressure states. They also function as long-acting thermoreceptors, thus in the event of a serious burn, there will be no pain since these sensors will be burnt away.
Thus, The Bulbous corpuscle, also known as the Ruffini corpuscle, is a mechanoreceptor present in human cutaneous tissue that adapts slowly. It's spindle-shaped, sensitive to skin stretch, and helps with kinesthetic (tactile) perception and control of finger position and movement.

Thus, the answer is option D: All of the above.

Note:
The end bulbs of Meissner's corpuscles, Ruffini endings, Pacinian corpuscles, and Krause corpuscles have all been encapsulated. Touch and low-frequency vibration stimulate Meissner's corpuscles. Stretch, joint deformation, and temperature are all detected by Ruffini endings. Transient pressure and high-frequency vibration are detected by Pacinian corpuscles.