Human blood is composed of two essential elements: the liquid consisting of water, organic matter and minerals in the solid soluble and consists of cellular elements (red cells, white cells and platelets). In case the blood harvested from the patient's vein is placed in a test tube coagulates after a few minutes. Then it is separated into a liquid layer, the upper, which is called serum and a lower layer, which is solid clot. If the tube that was harvested blood of a substance anticoagulant (which prevents clotting) when blood no longer coagulates, but separates everything into two layers: the upper layer liquid consisting of plasma and lower layer, solid, constituted coagulated celuare the elements.
From these two components serum and blood plasma will perform biochemical and serological main medical tests. Of blood cellular components is achieved hematology. Hematology investigating the number, shape, and composition characteristics of cellular elements of the blood.
The cranial bones are bones that surround and protect our brain. In infants, the cranium is composed of different separate cranial bones.
- The bone that exists as five separate bones when you are an infant is the CRANIUM.
- The major bones (bony plates) that form the cranium of an infant (newborn) are 2 frontal bones, 2 parietal bones and one (1) occipital bone.
- Subsequently, bony plates are joined to each other by a fibrous joint called a suture.
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You inhale when contracting muscles and exhale when finishing a rep.