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Electrocardiography. (a) Electrodes are placed on the patient’s chest to record the electrical event
Diphtheria. The bacteria that cause this disease, called Corynebacterium diphtheriae, proliferate in
Tracheostomy. A tracheotomy, or incision into the trachea, is performed to create an opening into th
Opening a Sterile Packet
The upper intake manifold, often called a plenum, attaches to the lower intake manifold.
The synapse and synaptic transmission. (a) A thin cleft, called the synapse, separates one cell from