The Skeletal System: It's ALIVE! - CrashCourse Biology #30

Descripción

Hank introduces us to the framework of our bodies, our skeleton, which apart from being the support and protection for all our fleshy parts, is involved in many other vital processes that help our bodies to function properly. Table of Contents 1) Endoskeleton 2:03 2) Biolography 3:27 3) New Bone F