Which type of connective tissue forms the sutures that firmly connect cranial bones together?

• A. Dense fibrous connective tissue
• B. Hyaline cartilage
• C. Elastic cartilage
• D. Adipose tissue

Answer: (A)

Verified step by step guidance

1. Step 1: Understand the function of sutures in cranial bones. Sutures are immovable joints that firmly connect cranial bones, providing stability and protection for the brain. This requires a type of connective tissue that is strong and durable.
2. Step 2: Review the characteristics of dense fibrous connective tissue. Dense fibrous connective tissue is composed of tightly packed collagen fibers, which provide tensile strength and resistance to pulling forces. This makes it ideal for forming sutures.
3. Step 3: Compare the other options: Hyaline cartilage, elastic cartilage, and adipose tissue. Hyaline cartilage is found in areas like the nose and trachea, providing smooth surfaces for movement. Elastic cartilage is flexible and found in structures like the ear. Adipose tissue stores fat and provides insulation, but none of these are suitable for forming immovable joints like sutures.
4. Step 4: Identify the correct answer based on the structural and functional requirements of sutures. Dense fibrous connective tissue is the only option that matches the strength and durability needed to firmly connect cranial bones.
5. Step 5: Conclude that dense fibrous connective tissue forms the sutures that connect cranial bones, as it is specifically designed to provide the necessary strength and immobility for this function.