The dissections showed that the fascia lata (FL) attaches to the entire extent of the inferior aspect of the iliac crest. In the upper and lateral thigh, the FL receives fibrous contributions from the gluteus maximus and tensor fascia lata (TFL) to form the ITB.
Tunica media. This is the middle layer. It is made of smooth muscle and elastic fibers. It is responsible for vasodialation and vasoconstriction of the blood vessels. It is also the target tissue for Vasopressin (ADH) Hormone and plays into blood pressure. Tunica adventitia This is the most superficial of the layers.
When does peripheral vasoconstriction happen? Immediately on entering cold water, itâs initiated by cold receptors (aka thermoreceptors, which are different kinds of heat or cold detecting nerves) in the skin. The body doesnât have to be fully immersed, just the lower legs being in cold water is sufficient. Is any part of the body not affected by peripheral vasoconstriction? The head is not effected. (Heat loss during cold water immersion is greatest in the head, neck, upper chest and groin).