Hypaxial and epaxial muscles develop directly from somitic cells. Differentiation of hypaxial and epaxial muscles is postulated to have evolved as a new trait in vertebrate animals.

Two types of muscles, epaxial and hypaxial, develop at most rostral–caudal levels, and sets of complementary motor neurons are generated within the spinal cord. At the limb levels some hypaxial muscle precursors migrate into the limb bud, proliferate and generate limb muscles.

beneath an axis, as the axis of the vertebral column. Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved. Below any axis, such as the spinal axis or the axis of a limb. See: hypomere. Farlex Partner Medical Dictionary © Farlex 2012.

Here we summarize the latest findings on the evolutionary mechanisms underlying the morphological variety of hypaxial musculature, with special reference to the molecular insights obtained from several living species that diverged early in vertebrate evolution.

6 days ago · The meaning of HYPAXIAL is situated beneath the axis of the spinal column.

Hypaxial muscle is the anatomical term commonly used when referring to all the ventrally located musculature in the body of vertebrates, including muscles of the body wall and the limbs.

Hypaxial muscles are the superficial back muscles. What are the hypaxial muscles. ________ move the vertebral column and are found on its posterior surface. Epaxial muscles also play a role in controlling flexion of the trunk by their gradual relaxation. This is described as ______, since it appears that they would have no function in flexion.

Epaxial and hypaxial muscles are defined as muscles innervated by the dorsal and ventral rami of spinal nerves, respectively. Each cluster of spinal motor neurons passing through dorsal rami innervates epaxial muscles, whereas clusters traveling on …

Sep 28, 2021 · Here we summarize the latest findings on the evolutionary mechanisms underlying the morphological variety of hypaxial musculature, with special reference to the molecular insights obtained from several living species that diverged early in vertebrate evolution.

In amniotes, the muscles of the back are classified as epaxial muscles, while diaphragm, tongue, abdominal, intercostal and limb muscles are classified as hypaxial.