The Primary Pacemaker Cell of the Heart Is The

question 16

Multiple Choice

The primary pacemaker cell of the heart is the:

• A) AV node.
• B) bundle of His.
• C) Purkinje network.
• D) SA node.

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Definitions:

Mandible

The lower jawbone, which is the largest, strongest bone in the face, serving for the reception of the lower teeth and providing structure for facial shape and motion.

Maxillary

Relating to the upper jawbone, which forms part of the face and holds the upper teeth.

Fontanels

Soft spots on a baby's skull where the bones have not yet fused, allowing for flexibility during birth and brain growth.

Sella Turcica

A saddle-shaped depression in the sphenoid bone of the skull that houses the pituitary gland.