World of Biology on Instagram: "The sodium-potassium pump is a protein in the neuron's membrane that uses ATP to move three sodium ions out and two potassium ions into the cell, thereby restoring the resting potential necessary for nerve impulses. Animation credit - @ribosomestudio"

World of Biology on Instagram: "When Nature Needs a Helping Hand . . In rare cases, when the placenta does not detach naturally after childbirth, doctors may perform manual removal of the placenta. This involves carefully inserting a gloved hand into the uterus under anesthesia to separate and extract the placenta. The procedure helps prevent heavy bleeding (postpartum hemorrhage) and ensures no placental tissue is left behind, protecting the mother’s health. • • Video credit 📸 - Body talks 28