Question

(9/19/25) summative assessment assignment: skeletal system part_1
the first step in bone healing involves the formation of a blood - filled swelling known as a(n)
○ bony callus
○ hematoma
○ epiphyseal line
○ fibrocartilage callus

Explanation:

When bone is injured, blood vessels break and blood pools at the site of injury, forming a hematoma. This is the initial stage of bone - healing. A bony callus forms later in the healing process. The epiphyseal line is related to bone growth and not the initial healing step. A fibrocartilage callus also forms after the hematoma stage.

Answer:

B. hematoma