List of articles in "Anatomical Structure" category - Page 70

The Lens placode is a thickened portion of ectoderm which serves as the precursor to the lens.SOX2 and Pou2f1 are involved in its development.

The surface ectoderm (or external ectoderm) forms the following structures:Skin (only epidermis; dermis is derived from mesoderm) (along with glands hair and nails)Epithelium of the mouth and nasal cavity salivary […]

The smallest cardiac veins or Thebesian veins or veins of Thebesius are minute valveless veins in the walls of all four heart chambers and they are often confused with the […]

The radial collateral ligament (external lateral ligament radial carpal collateral ligament) extends from the tip of the styloid process of the radius and attaches to the radial side of the […]

The dermatome is the dorsal portion of the paraxial mesoderm somite which gives rise to dermis. It arises in the third week of embryogenesis.It is formed when a dermamyotome (the […]

The thoracic ganglia are paravertebral ganglia. The thoracic portion of the sympathetic trunk typically has 12 thoracic ganglia. Emerging from the ganglia are thoracic splanchnic nerves (the cardiopulmonary the greater […]

The sacral ganglia are paravertebral ganglia of the sympathetic trunk.:39 As the sympathetic trunk heads inferiorly down the sacrum it turns medially. There are generally four or five sacral ganglia.

The vitelline arteries are the arterial counterpart to the vitelline veins. Like the veins they play an important role in the vitelline circulation of blood to and from the yolk […]

The thoracic aortic plexus is a sympathetic plexus in the region of the thoracic aorta.

The lumbar ganglia are paravertebral ganglia. The lumbar portion of the sympathetic trunk typically has 4 lumbar ganglia. The lumbar splanchnic nerves arise from the ganglia here and contribute sympathetic […]