Dermatomes and Myotomes Flashcards
1
Q
Dermatome
A
An area of skin that is supplied by a single spinal nerve.
2
Q
Myotome
A
A group of muscles supplied by a single spinal nerve
3
Q
Motor unit
A
A motor neuron and the skeletal muscle fibers it innervates.
4
Q
Where are the precursor cells for the nervous system found?
A
Neural tube
5
Q
What are the stages of embryonic development for the nervous system?
A
- Neural tube contains the precursor cells for the central nervous system
- Paired somites differentiate into the dermatomyotome
- dorsal
- forms dermis via dermatomes
- forms muscle tissue via the myotomes
6
Q
What is a spinal nerve?
A
A mixed nerve that carries motor, sensory and autonomic signals between the body and spinal cord.
