Answer the following statements true (T) or false (F)
1. All orbitals of an atom can hold two electrons.
2. All energy levels of an atom can hold four orbitals.
3. All energy levels can hold eight electrons.
4. The first energy level of an atom can hold only two orbitals.
5. The first energy level of an atom is closest to the nucleus and is the lowest energy level.
1. TRUE
2. FALSE
3. FALSE
4. FALSE
5. TRUE
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Factors that impact stroke volume and cardiac output include ____________________.
ion concentration hormone concentrations autonomic activity all choices are correct none of the choices are correct
Which statement about pain is true?
A. Pain can be measured. B. Pain always disappears on its own. C. Pain is an objective sign of disease. D. A pain scale allows patients to rank their pain.
Stimuli for the activation of the RAAS pathway include
A) high blood pressure in the renal artery only. B) a decrease in fluid flow through the distal tubule only. C) low blood pressure in arterioles in the nephron and a decrease in fluid flow through the distal tubule. D) low blood pressure in arterioles in the nephron, a decrease in fluid flow through the distal tubule, and high blood pressure in the renal artery. E) low blood pressure in arterioles in the nephron only.
Describe platelets and their origin
A) Platelets are derived by lymphoid stem cells that divide into lymphocytes and in the process shed some cytoplasmic fragments. B) Platelets are the remnants of the reticulocyte organelles during the maturation of a reticulocyte into a red blood cell. C) Platelets are precursor cells to the myeloid and lymphoid stem cells. D) Platelets are immature red blood cells. E) Platelets are cell fragments that develop from megakaryocytes.