Question

which of the following does not directly contribute to cutaneous sensation?
cutaneous plexus
lamellar corpuscle
hair follicle
tactile corpuscles
question 54 (1 point) ✓ saved
a patient walks into your office and needs to have several moles checked out because s
skin cancer. which of the following moles is not likely cancerous.
asymmetrical, irregular border, brown with specs of black, less that 6mm
symmetrical, regular border, brown, greater than 6mm
symmetrical, regular border, brown, less than 6mm
asymmetrical, regular border, brown, less that 6mm

Explanation:

• Question 1:
• The cutaneous plexus is a network of nerves that supplies the skin and is involved in cutaneous sensation.
• Lamellar corpuscles (Pacinian corpuscles) detect deep pressure and vibration, which are part of cutaneous sensation.
• Tactile corpuscles (Meissner's corpuscles) detect light touch, a key aspect of cutaneous sensation.
• Hair follicles are mainly related to hair growth and protection rather than directly contributing to the main types of cutaneous sensation (touch, pressure, pain, temperature).
• Question 2:
• The ABCDE rule for melanoma (a type of skin cancer) is used. A - asymmetry (cancerous moles are often asymmetrical), B - irregular border (cancerous moles have ragged borders), C - color variation (cancerous moles may have different colors like black, brown, red etc. in one mole), D - diameter (usually greater than 6mm for cancerous moles).
• A mole that is symmetrical, has a regular border, is a single color (brown here) and less than 6mm in diameter is less likely to be cancerous according to the ABCDE rule.

Answer:

• For the first question: Hair follicle.
• For the second question: symmetrical, regular border, brown, less than 6mm.