Inside of Venus. Venus is a rocky planet, much like the Earth. Given its similar size, mass, and density to our planet, scientists think that its interior is much like Earth's own. In addition to a crust significantly older than Earth's constantly changing surface, Venus likely also sports a mantle and a core.
From Wikipedia, the free encyclopedia. The hematocrit (Ht or HCT, British English spelling haematocrit), also known as packed cell volume (PCV) or erythrocyte volume fraction (EVF), is the volume percentage (%) of red blood cells in blood. It is normally 45% for men and 40% for women.rom Wikipedia, the free encyclopedia. The hematocrit (Ht or HCT, British English spelling haematocrit), also known as packed cell volume (PCV) or erythrocyte volume fraction (EVF), is the volume percentage (%) of red blood cells in blood. It is normally 45% for men and 40% for women.
Hormone replacement therapy (HRT) treatments include the hormone oestrogen. Oestrogens can cause a rise in blood pressure, which is why some forms of the contraceptive pill can raise blood pressure. However, there's still some debate over whether there's a link between HRT and a rise in blood pressure.ormone replacement therapy (HRT) treatments include the hormone oestrogen. Oestrogens can cause a rise in blood pressure, which is why some forms of the contraceptive pill can raise blood pressure. However, there's still some debate over whether there's a link between HRT and a rise in blood pressure.