Answer: Vascular smooth muscle cells.
Explanation:
Vascular smooth muscle cells are the contractile tissues which regulates flow blood and pressure of the blood by vasoconstriction (contraction) and/or vasodilatation (relaxation).
Vasoconstriction is the contraction of the blood vessels to increase tge pressure of the blood.
Vasodilatation is the relaxation of the blood vessels which results in a decrease in blood pressure.
Respiratory system, because the lungs and diaphragm would get the oxygen from the air, and transfer them to the circulatory system (that's a pretty basic explanation, there's much more to it)
T<span>he nurse should assess the patient's prior knowledge and his ability to participate in any education sessions. The nurse should explain to the patient the possible outcomes of each medication. The patient should also be well instructed of the symptoms and other reactions brought about by medication.</span>
It is The shoot and the root systems
