Epinephrine is also known as adrenaline. It is produced by both the adrenal glands and the certain neurons. It is used to treat some conditions like cardiac arrest, anaphylaxis and more. Its actions vary by tissue type and tissue expression of then receptors. It is binding to a variety of adrenergic receptors.It also help to increase peripheral resistance.
They provide the immune system with "memory" against previously encountered pathogens.
T memory cells are necessary for protective immunity against invading pathogens
Frequency describes the number of waves that pass a fixed place in a given amount of time. So if the time it takes for a wave to pass is is 1/2 second, the frequency is 2 per second. If it takes 1/100 of an hour, the frequency is 100 per hour.
Explanation:
Pulmonary Arteries where the blood is re-oxygenated.
