This Science quiz is called 'Basic Anatomy - The Skeleton' and it has been written by teachers to help you if you are studying the subject at middle school. Playing educational quizzes is a fabulous way to learn if you are in the 6th, 7th or 8th grade - aged 11 to 14.
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The skeleton is the bone structure within the body that supports the body and allows it to withstand movement. It also produces blood cells and stores minerals. When a person is born, they have a total of 270 different bones. However, as a person grows, many of those bones fuse together so that by late childhood/early adulthood the bone total drops to 206.
Bones contain mass (density) but do not reach their full mass capacity until a person reaches the age of 30.
The longest bone in the body is the femur. The femur is the thigh bone. The smallest bone is inside the ear and is called the stirrup.
Each hand has a total of 26 bones. Only the nose and outer ears do not have bones. Rather they have cartilages. A cartilage has more flexibility than does bone but is still quite sturdy. So no one can break a nose bone but rather can they can tear the nose cartilage.
The skeleton bones in the body are connected to each other at joints. Joints can be fixed joints such as the skull, hinged joints such as the fingers and toes, and ball-and-socket joints such as the shoulders and hips.
The skeleton of males and females do differ. In fact, archaeologists and orthopedics, both of whom study bones, can tell by simply looking at a skeleton whether the person was a female or a male. They can even determine an approximate age by simply looking at the bones. In males, the arm bones and leg bones are longer and thicker where in females the pelvic bone is wider, having a larger space through which babies are born.
Although there are 206 different bones, for this quiz will only cover the main ones. Among the main bones are the following. See below.