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 upon a layer of elastic tissue. So long as the cranial bones are separable from one another, these veins are confined […]

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 posterior division of the posterior facial with the posterior auricular vein. It commences in the substance of the parotid gland, on […]

Mecanismul miscarii

Mecanismul miscarii Ansamblu de procese fiziologice, biochimice, biomecanice si psihologice, aflate in relatii de cauzabilitate si interdependenta care determina executia unei miscari. Miscare ciclica Act motric ale carui structuri se repeta periodic Miscare aciclica Act motric ale carui structuri nu sunt caracterizate prin repetare periodica. Structura miscarii Grupare caracteristica a elementelor actului motric care prin […]

Notiuni de baza ale kinetologiei

1. Miscarea omului Expresie care indica totalitatea actelor motrice realizate de om pentru intretinerea relatiilor sale cu mediul natural si social si efectuarea deprinderilor specifice diferitelor discipline sportive. 2. Act motric Fapt simplu de comportare realizat prin muschii scheletici in vederea obtinerii unui efect elementar de adaptare sau de construire a unei actiuni motrice. 3. […]

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 brain, and the venous sinuses of the dura mater. 1. The Veins of the Exterior of the […]

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 by muscular fibers from the left atrium. It ends in the right atrium between the opening of the inferior vena cava […]

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) The veins of the lower extremities, abdomen, and pelvis, which end in the inferior vena cava.