Question

The brain is protected by
(A) Vertebrae
(B) Cranium
(C) Ribs
(D) Sternum

Answer 1

Hint: Skeletal system of the human body includes all the bones and joints. Their primary function is to provide support and function to the soft tissues that make up the body. The brain being the complex organ is made up of soft tissues and hence protected by the skull. The skull is made up of two parts.

Complete answer: Skeletal system consisting of bones and cartilages provides structural support and protection to the human body. The brain is protected by the skull. Skull is a bony structure that forms the head in vertebrates. The skull is composed of two major parts such as the cranium and the mandible.

Understanding the options one by one,
Option (A): Vertebrae are bones that make up the spinal cord or the backbone of the human body.
Option (B): Cranium is part of the skull which covers the brain and protects it.
Option (C): Ribs are twelve pairs of bones that form a protective cage enclosing the lungs in the thoracic region.
Option (D): Sternum otherwise known as breast bone is present in the central part of the chest. It protects the lungs and the heart respectively.
Therefore, Option (B) is correct.

Note: The brain is enclosed and protected by the skull which forms the head in vertebrate organisms. And the skull is made up of the cranium and the mandible. Skull consists of eight cranial bones and fourteen facial bones. The cranial bones are also known as neurocranium.