❤ The placenta is an organ that develops in the uterus during pregnancy.
💚 This structure provides oxygen and #nutrients to the growing baby and removes #waste_products from the baby’s blood.
💙 The placenta attaches to the wall of the uterus, and baby’s umbilical cord arises from it.
🧡 The umbilical cord is a narrow tube-like structure that connects the developing baby to the placenta.
💛 The cord is sometimes called the baby’s( #supply_line ) because it carries the baby’s blood back and forth, between the baby and the placenta.
🖤 The umbilical cord has (umbilical artery ) which carries deoxygenated blood from the developing fetus to mother .
💜 Then this blood , after oxygenation , returns back to the fetus by the ( umbilical veins ) .
Antiarrhythmic drugs and their classification:
▶️Antiarrhythmic drug classes:
*Class I – Sodium-channel blockers.
*Class II – Beta-blockers.
*Class III – Potassium-channel blockers.
*Class IV – Calcium-channel blockers.
▶️ Antiarrhythmic drugs are used for what?
*Antiarrhythmic medications prevent and treat abnormal heartbeats (arrhythmias).
*Problems with your heart’s rhythm are caused by a disruption in the heart’s electrical system.
*A drug called atropine may be prescribed if your heart beats too slowly (bradycardia).
▶️ Examples of Arrhythmias:
*Premature atrial contractions.
*Supraventricular tachycardia or paroxysmal SVT.
*Sick sinus syndrome.
*Premature ventricular complex, or PVCs.
The picture below shows Antiarrhythmic drugs classification ,examples for each classe and simple way to memorize them.