Changes

In the verterbrate embryo, the anterior of the embryo also begins to form into blocks of cells known as [[Developmental Biology - Somite Development - Anatomy & Physiology|somites]]. Somites are transient structures that will give rise to cells of the vertebrae and ribs, dermis of the dorsum, skeletal [[Developmental Biology - Muscle Development - Anatomy & Physiology|muscle]] of the body wall, back and limbs; they originate from the section of mesoderm known as [[Developmental Biology - Gastrulation - Anatomy & Physiology|paraxial mesoderm]].  

In the verterbrate embryo, the anterior of the embryo also begins to form into blocks of cells known as [[Developmental Biology - Somite Development - Anatomy & Physiology|somites]]. Somites are transient structures that will give rise to cells of the vertebrae and ribs, dermis of the dorsum, skeletal [[Developmental Biology - Muscle Development - Anatomy & Physiology|muscle]] of the body wall, back and limbs; they originate from the section of mesoderm known as [[Developmental Biology - Gastrulation - Anatomy & Physiology|paraxial mesoderm]].  

The mesoderm also gives rise to the [[Developmental Anatomy of the Kidneys and Urinary Tract - Anatomy & Physiology|urinary system]] and some parts of the reproductive system; these develop from intermediate mesoderm. Lateral plate mesoderm differentiates into the [[Developmental Anatomy of the Heart - Anatomy & Physiology|heart]], the [[Vascular Development - Anatomy & Physiology|vascular system]], the [[Developmental Biology - Limb Development - Anatomy & Physiology|limbs]], and the tissue and smooth muscle surrounding the alimentary canal, or digestive system.  

The mesoderm also gives rise to the [[Developmental Anatomy of the Kidneys and Urinary Tract - Anatomy & Physiology|urinary system]] and some parts of the reproductive system; these develop from intermediate mesoderm. The development of the male or female reproductive system is mediated by the genetic sex of the embryo.

 

Lateral plate mesoderm differentiates into the [[Developmental Anatomy of the Heart - Anatomy & Physiology|heart]], the [[Vascular Development - Anatomy & Physiology|vascular system]], the [[Developmental Biology - Limb Development - Anatomy & Physiology|limbs]], and the tissue and smooth muscle surrounding the alimentary canal, or digestive system.  

The formation of bone, or [[Developmental Biology - Bone & Joint Development - Anatomy & Physiology|osteogenesis]] has several different origins - the skull develops at the junction of the neural plate and the epidermis, the limb skeleton develops from lateral plate mesoderm, and the axial skeleton develops from paraxial mesoderm. Both [[Bones and Cartilage - Anatomy & Physiology|bones]] and [[Bones_and_Cartilage_-_Anatomy_%26_Physiology#Structure_and_Function_of_Cartilage|cartilage]] continue to develop into several well differentiated types specific to their anatomical position and function.

The formation of bone, or [[Developmental Biology - Bone & Joint Development - Anatomy & Physiology|osteogenesis]] has several different origins - the skull develops at the junction of the neural plate and the epidermis, the limb skeleton develops from lateral plate mesoderm, and the axial skeleton develops from paraxial mesoderm. Both [[Bones and Cartilage - Anatomy & Physiology|bones]] and [[Bones_and_Cartilage_-_Anatomy_%26_Physiology#Structure_and_Function_of_Cartilage|cartilage]] continue to develop into several well differentiated types specific to their anatomical position and function.