Skeletal System Overview

Skeletal System

• The skeletal system serves as the body's framework, allowing for upright posture.
• It has two primary functions: physiological and mechanical.

Divisions of the Skeletal System

• Axial skeleton: Includes bones along the body's central axis.
• Appendicular skeleton: Consists of bones in the limbs and their attachments to the axial skeleton.

Names of Bones

• Skull (cranium): Protects the brain.
• Upper jaw bone (maxilla): Forms the upper part of the jaw.
• Lower jaw bone (mandible): Forms the lower part of the jaw.
• Collarbone (clavicle): Connects the shoulder to the breastbone.
• Breast bone (sternum): Located in the center of the chest.
• Upper arm bone (humerus): Connects the shoulder to the elbow.
• Hip bone (pelvis): Supports the weight of the upper body and protects internal organs.
• Back bone (vertebrae): Provides support and allows for movement.
• Ribs: Protect the heart and lungs.
• Tailbone (coccyx): The end of the vertebral column.
• Lower arm bone (radius and ulna): Connect the elbow to the wrist.
• Wrist bone (carpal): Located between the hand and forearm.
• Metacarpal: Bones in the palm of the hand.
• Finger/toe bones (phalanges): Support the fingers and toes.
• Thigh bone (femur): The longest bone in the body, connects the hip to the knee..
• Kneecap (patella): A small bone in front of the knee joint.
• Shank bone (tibia): Larger lower leg bone.
• Calf bone (fibula): Smaller bone in the lower leg.
• Ankle bone (tarsal): Between the foot and leg.
• Metatarsal: Bones in the foot.

Disorders of the Skeletal System

• Sprain: A stretching or tearing of ligaments.
• Rickets: A condition caused by vitamin D deficiency, affecting bone growth.
• Arthritis: Inflammation of the joints.
• Dislocation: When a bone is displaced from its joint
• Osteoporosis: A condition that weakens bones, making them brittle.
• Fracture: A break in a bone.
• Scoliosis: A sideways curvature of the spine.

This quiz covers crucial aspects of the skeletal system, including its functions and the divisions of the skeletal structure. Learn about the major bones in the human body and their roles. Test your knowledge on the axial and appendicular skeletons and the names of key bones.