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The muscle fiber cells are arranged in 5 to 7 layers of circular and longitudinal smooth muscle with about 50μ in length and contain well-marked, rod-shaped nuclei, which are often slightly curved. Separating the tunica media from the outer tunica externa in larger arteries is the external elastic membrane (also called the external elastic ...
The tunica intima (Neo-Latin "inner coat"), or intima for short, is the innermost tunica (layer) of an artery or vein. It is made up of one layer of endothelial cells (and macrophages in areas of disturbed blood flow), [1] [2] and is supported by an internal elastic lamina. The endothelial cells are in direct contact with the blood flow.
The median cubital vein receives a number of tributaries from the anterior forearm. The median antebrachial vein may or may not drain into the median cubital vein. [3] The median cubital vein issues a branch - the deep median vein - which pierces the fascial roof of the cubital fossa to join the brachial veins. [3]
Veins of the heart. Coronary sinus. Great cardiac vein; Oblique vein of left atrium; Middle cardiac vein; Small cardiac vein; Pulmonary veins; Superior vena cava. Brachiocephalic vein. Inferior thyroid vein; Inferior laryngeal vein; Pericardial veins; Pericardiophrenic veins; Bronchial veins; Vertebral vein. Occipital vein; Anterior vertebral ...
The two main veins are the basilic and the cephalic veins. There is a connecting vein between the two, the median cubital vein, which passes through the cubital fossa and is clinically important for venepuncture (withdrawing blood). The basilic vein travels on the medial side of the arm and terminates at the level of the seventh rib.
The median antebrachial vein, also known as median vein of forearm, is a superficial vein of the (anterior) forearm.It arises from - and drains - the superficial palmar venous arch, ascending superficially along the anterior forearm before ending by opening into the median cubital vein near the junction with the basilic vein within the cubital fossa; alternately, it may fork distal to the ...
It travels up the leg and medial side of the thigh to reach the groin, where it drains into the common femoral vein. [32] Along the length of the GSV, it [clarification needed] receives numerous tributaries (from the subcutaneous layer) and drains into the deep veins via the perforator veins. The "eye sign"
The position of the femoral canal medially to the femoral vein is of physiologic importance. The space of the canal allows for the expansion of the femoral vein when venous return from the lower limbs is increased or when increased intra-abdominal pressure (Valsalva maneuver) causes a temporary stasis in the venous flow.