Skeletal System For 2nd Grade

The adult body has 206 bones. This is the correct answer because the human skeleton is made up of 206 individual bones, which provide support, protection, and allow for movement. These bones vary in size and shape, and are connected by joints and ligaments.

The ribs protect the lungs and heart. The rib cage forms a protective barrier around these vital organs, shielding them from external impacts and injuries. The lungs are responsible for oxygenating the blood and removing carbon dioxide, while the heart pumps oxygenated blood throughout the body. The ribs act as a sturdy cage, helping to prevent damage to these critical organs and ensuring their proper functioning.

The statement is true because the clavicle is indeed known as the collar bone. The clavicle is a long bone that connects the shoulder blade to the sternum, forming part of the shoulder girdle. It is easily visible and can be felt along the front of the neck and shoulder. The term "collar bone" is commonly used to describe the clavicle due to its location and shape, resembling a collar that connects the shoulder and neck.

The statement is true because the radius and ulna are indeed the two bones of the lower arm. The radius is the bone on the thumb side of the forearm, while the ulna is the bone on the pinky side. These two bones work together to allow for movements of the forearm, such as rotation and flexion.

The femur is the longest bone in the body. It is located in the thigh and extends from the hip to the knee. The femur is responsible for supporting the weight of the body and plays a crucial role in movement and mobility. Its length and strength make it the longest and largest bone in the human body.

Phalanges are the small bones that make up the fingers and toes.

The tibia is a long bone that is located in the lower leg. It is the larger of the two bones in the lower leg, with the fibula being the smaller bone. The tibia plays a crucial role in supporting the body's weight and is an important bone for walking, running, and other lower extremity movements. It is also an important bone for muscle attachment and provides stability to the ankle joint.

The given statement is false. The humerus is not the long bone of the upper leg, but rather the long bone of the upper arm. The long bone of the upper leg is called the femur.

The spine is a column made up of cartilage and bone that extends from the base of the skull to the pelvis. It consists of a series of individual bones called vertebrae, which are stacked on top of each other and connected by joints. The vertebrae provide support and protection for the spinal cord, and the bones help to maintain the overall structure and stability of the spine.