Question

question 21

what kind of tissue is the forerunner of long bones in the embryo?

a - dense fibrous connective tissue
b - hyaline cartilage
c - fibrocartilage
d - elastic connective tissue

Explanation:

Identify the bone development process

Long bones develop through a process called endochondral ossification.

Determine the embryonic precursor tissue

During embryonic development, a model of the future long bone is first formed out of cartilage. Specifically, this model is composed of hyaline cartilage, which is gradually replaced by bone tissue as ossification proceeds.

Evaluate the given options

• Option A (dense fibrous connective tissue) is the precursor for flat bones via intramembranous ossification.
• Option B (hyaline cartilage) is the correct precursor for long bones.
• Option C (fibrocartilage) is found in structures like intervertebral discs, not embryonic bone models.
• Option D (elastic connective tissue) provides flexibility in structures like the external ear.

Answer:

• (A) dense fibrous connective tissue
• (B) hyaline cartilage (Correct answer)
• (C) fibrocartilage
• (D) elastic connective tissue