LEAVE ACCRUAL RECORDS. Vacation and sick leaves are accrued based on the leave accrual codes established on the Payroll Personnel System (PPS). Leave code is established by the department when an appointment is initially set up. For staff employees thereafter, the PPS will re-derive the leave code on the appointment during month-begin periodic maintenance.
For muscles to contract there needs to be an adequate supply of ATP within the cell. ATP is generated in part by a supply of glucose and oxidative phosphorylation. An inadequate supply of blood will not provide enough oxygen to keep up with the energy demands of contraction.
Why Is Elasticity Important? The three types of blood vessels in the body are arteries, veins and capillaries. All blood in the body flows through these vessels, but they are not all the same. Both arteries and veins have thick muscle layers that surround them and the aorta has cardiac muscle in the walls, as well.