Category: Systemic Veins

The Sinuses of the Dura Mater 0

The Sinuses of the Dura Mater

(Sinus Duræ Matris). Ophthalmic Veins and Emissary Veins The sinuses of the dura mater are venous channels which drain the blood from the brain; they are devoid of valves, and are situated between the...

The Veins of the Brain 0

The Veins of the Brain

The veins of the brain possess no valves, and their walls, owing to the absence of muscular tissue, are extremely thin. They pierce the arachnoid membrane and the inner or meningeal layer of the...

The Diploic Veins 0

The Diploic Veins

The diploic veins or Venæ Diploicæ occupy channels in the diploë of the cranial bones. They are large and exhibit at irregular intervals pouch-like dilatations; their walls are thin, and formed of endothelium resting...

The Veins of the Neck 0

The Veins of the Neck

The external jugular vein (v. jugularis externa) receives the greater part of the blood from the exterior of the cranium and the deep parts of the face, being formed by the junction of the...

The Veins of the Head and Neck 0

The Veins of the Head and Neck

The veins of the head and neck may be subdivided into three groups: (1) The veins of the exterior of the head and face. (2) The veins of the neck. (3) The diploic veins,...

The Veins of the Heart 0

The Veins of the Heart

Most of the veins of the heart open into the coronary sinus. This is a wide venous channel about 2.25 cm. in length situated in the posterior part of the coronary sulcus, and covered...

Systemic Veins 0

Systemic Veins

The systemic veins may be arranged into three groups: (1) The veins of the heart. (2) The veins of the upper extremities, head, neck, and thorax, which end in the superior vena cava. (3)...