a) It never needs batteries.
b) It's designed for extremely active patients.
c) It's specifically designed for long-term use.
d) An LVAD only supports a failing left ventricle.
Answer:
d) An LVAD only supports a failing left ventricle.
Explanation:
When both halves (R.&L Ventricles) of the heart failed to pump blood, together with the failure of the valves to regulate blood flow as in biventricular failure, <em>a device can planted in the patient to replace the failed right or let ventricles and to control the directional flow of blood to the vascular system. This device is called TAH.</em>
However when the left ventricle is faulty so that blood pump into the systemic circulation is affected in case of a patient who is <u>waiting for heart transplants not old enough for transplants;</u> <u>who needs to sustain heart function after surgery</u>; or <u>patients who could not find a heart donor and therefore need to survive</u>, <em>a mechanical pump is implanted below the diaphragm and power by battery cell in a wearable outside. This miniature mechanical pump is called Left venticular assist device(LVAD).It only correct left ventricle anomaly</em> .
Thus the major difference between the two is that LVAD, is only for the faulty left Ventricle correction.
Answer:
This is because fluids have a polar nature, so they couldn´t cross the lipidic bilayer that constitutes the plasma membrane
Explanation:
Plasma membranes are contituted by lipid bilayers. These kind of compounds are hidrophobic (they reject water) and don´t permit the freely passage of hidriphilic molecules that can disolve in water, constituing fluids. Because of that cells developed transport mechanism like endocytosis.
<span>The answer is b. have a change in dipole moment
When a molecule absorbs an infrared ray, its energy will increase. The energy will increase the rotational movement or the molecule. If the energy increases further, it will become the vibrational movement. Dipole moment will be increased if the vibrational movement is increased.</span>