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.

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.

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:

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

i don't know, but does anyone wanna be friends? i'm doing my homework at 1: 49 in the morning : /

question#1

ans:

cell is the basic unit of organization of all living things. cells are often called the building block of life and it is the smallest unit of life. the study of cell is called cell biology. cell consists of cytoplasm enclosed within membrane, which contain bio-molecules such as proteins and nucleic acid.

two third of cell is water, which means that two-third of your whole body is water. the rest is the mixture of molecules, mainly proteins, lipids and carbohydrates.

question#2

ans:

organ:

an organ is a group of tissues specialized to form a functional unit. an example is the heart in animals.

organ system:

an organ system is a group of several organs whose functions are synchronized to release an effective action in a living organism. an example is digestive system.

question#3

different systems perform different function at tissue level. for example, the respiratory system facilitates breathing. in the alveoli tissue of the lungs, the exchange of oxygen and carbon dioxide molecules between the air and the bloodstream occurs by passive transport, so that oxygen is taken in and carbon dioxide and water are removed. different systems of the body carry out different functions. for example, your digestive system is responsible for taking in and processing food, while your respiratory system working with your circulatory system is responsible for taking up oxygen and getting rid of carbon dioxide.

question#4

different systems perform different function at tissue level. for example, the respiratory system facilitates breathing. in the alveoli tissue of the lungs, the exchange of oxygen and carbon dioxide molecules between the air and the bloodstream occurs by passive transport, so that oxygen is taken in and carbon dioxide and water are removed. different systems of the body carry out different functions. for example, your digestive system is responsible for taking in and processing food, while your respiratory system—working with your circulatory system is responsible for taking up oxygen and getting rid of carbon dioxide.

question#5

our body works because of the interactions that happen between organs and organ systems.  

for example:  

the heart to regulate blood flow throughout the body. the blood carries oxygen and nutrients to the cells and carries carbon dioxide and waste away from the cells. body systems work together in maintaining a constant internal environment. when this balance is disrupted, the body systems may not function properly, and human health can suffer.   you start to feel bad.