The Skeletal System Anatomy – is the study of the structure of the human body. To properly understand the body’s ability to produce movement, we need to know and understand how all the body’s systems work together. Bones and muscles perform under the direction of the brain and produce movement for physical activity.

Anatomy The study of the human body. To properly understand the body’s ability to produce movement, we need to know and understand how all the body’s systems work together. Bones & muscles perform under the direction of the brain & produce movement for physical activity. Your Text Here

Functions of the Skeletal System Protect the vital organs and soft tissue in our body Produce red blood cells Reservoir for minerals (calcium & phosphate) Provide attachments for muscles to produce movement Protect the vital organs and soft tissue in our body Produce red blood cells Reservoir for minerals (calcium and phosphate) Provide attachments for muscles to produce movement

Classification of Bones The human skeleton has over 200 bones and most of them are involved in movement. Bones are 50% fluid and 50% solid Minerals make bones rigid Protein makes bones strong

Classification of Bones Examples Function Diagram Long Bones Femur, Humerus Serve as levers and movement Short Bones Tarsals (ankle), Carpals (wrist) Give strength to joints but decrease mobility Flat Bones Ribs, Scapulae Broad site for muscle attachment and protect internal organs Irregular Bones Ischium, Pubis, and Vertebrae Protect internal organs and give support to the body

Major Bones of the Body

Functions of the Skeletal System Protect the vital organs and soft tissue in our body Produce red blood cells Reservoir for minerals (calcium & phosphate) Provide attachments for muscles to produce movement Protect the vital organs and soft tissue in our body Produce red blood cells Reservoir for minerals (calcium and phosphate) Provide attachments for muscles to produce movement

Joints and Articulations There are two types of joints: Classification Synovial Classification Joints: The place where the bones meet or join is called a joint or articulation. They are classified based on the amount of movement that takes place at the joining point between the bones.

Joints and Articulations Classification Structure/Movement Examples Immovable Immoveable because bones are fused together Cranial Bone Slightly Moveable Slight movememt and have a fibrocartilage disk separating the bones Vertebrae Tibiofibular Joint Sacroilic Joint Freely Moveable Freely moveable in a variety of directions because inelastic ligaments and muscles cross the joint to keep it in place. All other joints in the body.

Joints and Articulations Synovial Joints These freely moveable joints are different from other joints in the body. Along the surface of the bones that join together, there is cartilage to reduce the friction and absorb shock. The joint is also enclosed by an articular capsule that hold the synovial fluid inside the joint cavity. There are 6 types of synovial joints that provide various different amounts of movements.

Joints and Articulations The 3 major types involved in fitness are: Type Movement Examples Hinge Allows movement in one plane of motion only Elbow, Knee Condyloid Allows movement in two planes of motion only Wrist, Ankle Ball and Socket Allows movement in three directions and a great range of motion Shoulder, Hip