What Are Two Elements Detected on the Hands of an Individual

question 39

Multiple Choice

What are two elements detected on the hands of an individual who has recently fired a weapon?

• A)Zinc and copper
• B)Antimony and barium
• C)Barium and nitrates
• D)Antimony and iron

---

Definitions:

Concentric Lamellae

Circular layers of bone matrix in osteons that surround a central canal, providing strength and support to bone.

Compact Bone

The dense, hard outer layer of bone that provides strength and support to the skeletal structure.

Osteocytes

Mature bone cells that maintain bone tissue by regulating mineral content and communicating with other bone cells.

Avascular

Referring to tissues or spaces within the body that lack blood vessels, and therefore receive limited blood supply.