What are myotommes?

The anatomical term myotome refers to the muscles served by a spinal nerve root. A myotome is, therefore, a set of muscles innervated by a specific, single spinal nerve. The term is also used in embryology to describe that part of the somite which develops into the muscles. ... Each vertebrae has a spinal nerve.

1. Are Myotomes and Dermatomes the same?
2. Why are Myotomes clinically important?
3. What is the nature of Myotomes?
4. What is myotome in fish?
5. What is the myotome of T6?
6. Are Dermatomes motor or sensory?
7. What does myotome testing tell you?
8. Which animal shows Myotomes?
9. What type of skeleton does a fish have?
10. What are myomeres and Myosepta?

Are Myotomes and Dermatomes the same?

A group of muscles that is innervated by the motor fibers that stem from a specific nerve root is called a myotome. An area of the skin that is innervated by the sensory fibers that stem from a specific nerve root is called a dermatome.

Why are Myotomes clinically important?

Clinical significance

In humans myotome testing can be an integral part of neurological examination as each nerve root coming from the spinal cord supplies a specific group of muscles. ... Results may indicate lesion to the spinal cord nerve root, or intervertebral disc herniation pressing on the spinal nerve roots.

What is the nature of Myotomes?

A myotome is a group of muscles which are innervated by a single spinal nerve which has derived from the same embryological segment. In this way, it is described as the motor equivalent of a dermatome, which is an area of skin innervated by a single spinal nerve.

What is myotome in fish?

The study focused on the myotome (a group of muscles served by a spinal nerve root) that makes up most of the fish body. ... These fish muscles power the fish's side-to-side swimming motion and the chevron pattern is thought to increase swimming efficiency.

What is the myotome of T6?

T6: the intersection of the midclavicular line and the horizontal level of the xiphoid process. T7: the intersection of the midclavicular line and the horizontal level at one quarter the distance between the level of the xiphoid process and the level of the umbilicus.

Are Dermatomes motor or sensory?

A dermatome is an area of skin in which sensory nerves derive from a single spinal nerve root (see the following image).

What does myotome testing tell you?

Testing of myotomes, in the form of isometric resisted muscle testing, gives information about the level in the spine where a lesion may be present. During myotome testing, you are looking for muscle weakness of a particular group of muscles.

Which animal shows Myotomes?

Myotome is a muscle which shows in the fishes.

Myotome muscles can be seen in the both sides of the vertebral column of the body of the fishes.

What type of skeleton does a fish have?

There are two different skeletal types: the exoskeleton, which is the stable outer shell of an organism, and the endoskeleton, which forms the support structure inside the body. The skeleton of the fish is made of either cartilage (cartilaginous fishes) or bone (bony fishes).

What are myomeres and Myosepta?

bundles of muscle fibres called myomeres. The myomeres are separated by thin horizontal (myosepta) and vertical (myocommata) layers of connective tissue. The unique structure and thin connective tissue sheaths of fish muscle give the meat its characteristic soft, flaky texture.