Question

Check all that are true statements regarding dermatomes.

A. Pain in a dermatome can only arise from the region of the skin that is innervated by that spinal nerve.
B. Dermatomes are involved in referred visceral pain.
C. If a person experiences damage or infection in an internal organ, the pain may be experienced elsewhere due to dermatomes.
D. Dermatomes are important in discovering muscle or organ damage, but are not useful in identifying spinal nerve damage.

Answer 1

Dermatomes play a significant role in referred visceral pain and can help in diagnosing internal organ damage, as well as spinal nerve injury. They are crucial areas used in sensory exams.

Step-by-step explanation:

In examining statements regarding dermatomes, which are regions of skin innervated by specific spinal nerves, we can assess the accuracy of the given statements:

B: Dermatomes are involved in referred visceral pain. This is true. Sensations from internal organs may be felt in unexpected areas common to the same spinal nerve levels, which is characteristic of referred pain.

C: When there is damage or infection in an internal organ, the pain may be felt elsewhere due to dermatomes. This is true. Referred pain occurs when the brain misinterprets pain signals from internal organs as originating from skin areas innervated by the same spinal nerves.

D: Dermatomes are not only critical for identifying muscle or organ damage but are also useful in identifying spinal nerve damage. This statement is false. Dermatomes help determine if damage to a spinal nerve has occurred, which manifests as a loss of sensation in the skin area it innervates.

Statement A is not addressed in the reference material provided, hence we cannot accurately assess its truthfulness. In reference to the material, diagnosing issues utilizing sensory exams involving dermatomes is an essential aspect of neurological evaluation.

Answer 2

A. Pain in a dermatome can only arise from the region of the skin that is innervated by that spinal nerve.

D. Dermatomes are important in discovering muscle or organ damage but are not useful in identifying spinal nerve damage.

C. If a person experiences damage or infection in an internal organ, the pain may be experienced elsewhere due to dermatomes.

Step-by-step explanation:

A dermatome is a region on the skin innervated by a spinal cord's root or dorsal nerve. The cutaneous nerves are those that reach the skin, collecting the sensitivity of it. Each cutaneous nerve is distributed in a particular area of skin, called a dermatome. From each segment of the medulla arises a pair of posterior roots sensory and a pair of anterior or motor roots, which join laterally to the intervertebral foramen level to form a mixed spinal nerve. Each of these innervates a dermatome strip of skin, so the surface corporal can be considered a true mosaic.

This term has three meanings:

• Skin neoplasms (tumors)
• A strip of skin territory innervated by sensory fibers originates from a posterior root (nerves originating in the spinal cord and exiting between two vertebrae), also called the spinal nerve.
• For its part, the dermatome razor is a kind of razor that allows you to take cutaneous fragments, more or less thick, to perform skin grafts.

A dermatome region posses the following characteristics traits as shown in option A, D, and C