Which of the following serves as the brain box in man

Analyze the question: The "brain box" is the bony structure that encloses and protects the brain. We need to find which option does this job.

Explain the concept: The skeleton is divided into the axial and appendicular parts. The axial skeleton includes the skull, vertebral column (spinal column) and rib cage. The skull has two main parts:

• Cranium: the "brain box," which houses and protects the brain.
• Facial bones: which form the face and jaws.

Step-by-step solution:

• A. Skeleton: This is the whole bony framework of the body, which gives support and shape. It is too general, and it isn't specifically the brain's casing.
• B. Skull: This is the bony structure whose cranium encloses and protects the brain. Correct.
• C. Head: This is a whole body region that includes the skin, muscles, eyes, ears and so on. It is not a protective box.
• D. Spinal column: This protects the spinal cord, not the brain.

Answer: The skull (specifically its cranium) serves as the brain box in man, so the answer is B.

Exam tip: Match each organ to its protector:

• Brain → skull (cranium)
• Spinal cord → vertebral column
• Heart and lungs → rib cage

Whenever you see "box," think of the skull.