Answer:
The answer to the question: The movement of ions through their channels require a discharge of the capacitance, is, true.
Explanation:
In order for cells, muscular and neuronal, to perform their activities, they need to generate action potentials, that will permit these activities. In order for an action potential to happen, a cell´s membrance must be charged, or rather, its polarity must be changed, so that the cell can be charged and then fire. Usually, cells remain in a resting membrane state, in which, the extracellular matrix remains positive, while the intracellular space remains positive, due to ion, and anion presence in either. In order for the action potential to happen, these polarities are reversed through a series of steps in which ions, particularly potassium and sodium, sometimes calcium, will enter and exit the cell´s membrane to change this polarity. But in order for this process to take place, first a current, or stimulation, must motivate the cell to start the process. The capacitance is the capability of a cell to be ready to be activated or de-activated when stimulated, meaning, to be charged and discharged, when necessary. In order for this capacitance to permit the process of action potential formation, it needs to be discharged first, and this is done through the stimulus, which orders the cell´s membrane to initiate depolarization by opening up the ion channels. This is why the answer is true.
Answer:
B. Definitions of pharmacy terminology
Explanation:
I calculated it logically
Heart attacks happen suddenly when one of the arteries leading to the heart becomes blocked and cuts off the blood flow. Without oxygen, the heart muscles start to die.
Heart failure, on the other hand, usually develops gradually. The heart muscle becomes weaker and has trouble pumping blood to nourish the cells in your body. This is a chronic condition that gradually gets worse. But medications can help you live longer and better with it
Answer:
Rickets disease.
Explanation:
Rickets disease occurs when there is a mineralization deficit of the extracellular bone matrix; as a result, the bones are soft, and they deform easily. The X-rays show thick epiphyseal plates because it is hyaline cartilage that should be calcified to become a bone. As there is a deficit of vitamin D, the mineralization of the plate can not be done, making bone is flexible and deformable.
The main cause for Rickets disease is a diet with low intakes of calcium and vitamin D, and poor exposition to the sun, which is the best way to produce vitamin D. These two components are crucial for the mineralization of the bones.
Answer:
that's so true. and the world is still sort of like that, since some people don't have health insurance and they still have to pay with cash up front
