The superior thoracic aperture refers to the superior opening of the thoracic cavity. It is also referred to anatomically as the thoracic inlet and clinically as the thoracic outlet. The […]
List of articles in "Anatomical Structure" category - Page 330
Costochondral joint
The costochondral joints are the joints between the ribs and costal cartilage in the front of the rib cage. They are hyaline cartilaginous joints (i.e. synchondroses). Each rib has a […]
Occiput
The occiput is the anatomical term for the posterior (back) portion of the head or skull. In insects the occiput is the posterior part of the head capsule.The word occipital […]
Arachnoid mater
The arachnoid mater is one of the three meninges the protective membranes that cover the brain and spinal cord.
Subdural space
The subdural space (or subdural cavity) is a potential space that can be opened by the separation of the arachnoid mater from the dura mater as the result of trauma […]
Sinusoid (blood vessel)
A sinusoid is a small blood vessel that is a type of capillary similar to a fenestrated endothelium. Sinusoids are actually classified as a type of Open Pore Capillary (aka […]
Habenula
In neuroanatomy habenula (diminutive of Latin habena meaning rein) originally denoted the stalk of the pineal gland (pineal habenula; pedunculus of pineal body) but gradually came to refer to a […]
Adult stem cell
Adult stem cells are undifferentiated cells found throughout the body after development that multiply by cell division to replenish dying cells and regenerate damaged tissues.
Intrafusal muscle fiber
Intrafusal muscle fibers are skeletal muscle fibers that serve as specialized sensory organs (proprioceptors) that detect the amount and rate of change in length of a muscle and are innervated […]
Anterior spinal artery
In human anatomy the anterior spinal artery is the blood vessel that supplies the anterior portion of the spinal cord. It arises from branches of the vertebral arteries and courses […]