Question 1

Which of the following bones is also known as the 'Collar Bone' in the human body?

Accepted Answer

Clavicle. The clavicle is a long bone that serves as a strut between the shoulder blade and the breastbone. It is the only long bone in the body that lies horizontally. It is one of the most commonly fractured bones in the human body.

Question 2

What is the total number of bones in the axial skeleton of an adult human?

Accepted Answer

80. The axial skeleton consists of 80 bones along the central axis of the human body. This includes the skull, vertebral column, ribs, and sternum. It protects the vital organs such as the brain, heart, and lungs.

Question 3

The joint between the atlas and axis vertebrae is an example of which type of joint?

Accepted Answer

Pivot joint. A pivot joint allows for rotational movement around a single axis. The atlas and axis joint enables the head to turn from side to side. These joints are a specific type of synovial joint.

Question 4

Which substance provides strength and hardness to the human bones?

Accepted Answer

Calcium and Phosphorus. Bones are composed of a collagen matrix reinforced with calcium phosphate minerals. This combination provides both flexibility and high compressive strength. Approximately 99% of the body's calcium is stored in the skeletal system.

Question 5

What is the study of bones called?

Accepted Answer

Osteology. Osteology is a branch of anatomy that focuses on the detailed study of bone structures. It involves examining bone formation, diseases, and the overall skeletal system. This field is essential for forensic science and physical anthropology.

Skeletal System — Set 1