All of the Following Structures Are Part of the Electrical

question 252

Multiple Choice

All of the following structures are part of the electrical system of the heart EXCEPT ________.

• A)SA node
• B)bundle of His
• C)HDL
• D)AV node

---

Definitions:

Canaliculi

Small, channel-like structures in bones that allow for communication and nutrient transport between osteocytes.

Osteocytes

Mature bone cells, derived from osteoblasts, that have become trapped within the matrix they have secreted. They play an essential role in bone biology, most notably in the maintenance of bone.

Tooth Sockets

The cavities in the jawbone in which the roots of teeth are anchored.

Maxillae

are the paired upper jawbones in most vertebrates, playing key roles in the structures of the mouth and face.