In the axial skeleton, most muscle, cartilage, and connective tissues are derived from a series of mesenchymal blocks called ________.
A) teratogens
B) dermatomes
C) notochords
D) lateral plates
E) somites

Question

Quizplus · Accepted Answer

The mesenchymal blocks that give rise to most of the muscle, cartilage, and connective tissues in the axial skeleton are called somites. These structures form on either side of the neural tube in the early embryo and give rise to a variety of tissues, including the vertebrae, ribs, and associated muscles. The other choices are not correct: teratogens are substances that can cause birth defects, dermatomes are regions of skin supplied by a single spinal nerve, notochords are precursor structures to the vertebral column, and lateral plates are layers of mesoderm that form during development.

In the Axial Skeleton, Most Muscle, Cartilage, and Connective Tissues