introduction to the limbs Flashcards
limbs development: describe the early process in limb development that results in the differences in flexion/extension movements between the upper and lower limbs
1
Q
development: upper limbs vertebral level innervation
A
C5-T1
2
Q
development: lower limbs vertebral level innervation
A
L2-S3
3
Q
where are flexors and extensors in upper limb (palms forward, legs apart)
A
flexors anterior, extensors posterior
4
Q
where are flexors and extensors in lower limb, and why
A
extensors anterior, flexors posterior (due to internal rotation during development)
5
Q
lower limb rotation during development, and effect on dermatome fields
A
lower limb undergoes permanent pronation, resulting in a twisting of dermatome fields, such that they are oblique
