The skeletal system is composed of four main fibrous and mineralized connective tissues : bones, ligaments, tendons, and joints . Bone: A rigid form of connective tissue that is part of the skeletal system of vertebrates and is composed principally of calcium.
What are the 5 parts of the skeletal system?
The musculoskeletal system is made up of the body’s bones (the skeleton), muscles, cartilage, tendons, ligaments, joints, and other connective tissue that support and bind tissues and organs together. The skeleton serves as the main storage system for calcium and phosphorus.
What are the 4 main functions of the skeleton?
The skeletal system works as a support structure for your body. It gives the body its shape, allows movement, makes blood cells , provides protection for organs and stores minerals.
What are the 5 main functions of a skeleton?
Section Review. The major functions of the skeletal system are body support, facilitation of movement, protection of internal organs, storage of minerals and fat, and blood cell formation .
What is the structure of the skeletal system?
The skeletal system is composed of four main fibrous and mineralized connective tissues : bones, ligaments, tendons, and joints . Bone: A rigid form of connective tissue that is part of the skeletal system of vertebrates and is composed principally of calcium.
What are the main components of bone?
- collagen, the major structural protein (type I in bone and type II in cartilage); and.
- proteoglycans, which are negatively charged glycosylated proteins (glycosylated means having carbohydrate sugar groups modifying the protein).
What are the major components of the axial skeleton?
The axial skeleton includes the bones that form the skull, laryngeal skeleton, vertebral column, and thoracic cage . The bones of the appendicular skeleton (the limbs and girdles) “append” to the axial skeleton.
What are the main components of the muscular system?
- The muscular system is an organ system consisting of skeletal, smooth and cardiac muscles. ...
- There are three distinct types of muscles: skeletal muscles, cardiac or heart muscles, and smooth (non-striated) muscles.
What are the 4 types of moveable joints?
- Ball and socket joint. Permitting movement in all directions, the ball and socket joint features the rounded head of one bone sitting in the cup of another bone. ...
- Hinge joint. ...
- Condyloid joint. ...
- Pivot joint. ...
- Gliding joint. ...
- Saddle joint.
What are the two divisions of the skeletal system?
The adult human skeleton usually consists of 206 named bones. These bones can be grouped in two divisions: axial skeleton and appendicular skeleton . The 80 bones of the axial skeleton form the vertical axis of the body.
What are the 6 major functions of the skeletal system?
The human skeleton serves six major functions: support, movement, protection, production of blood cells, storage of ions, and endocrine regulation .
What are 5 interesting facts about the skeletal system?
- Your skeleton is made of more than 200 bones. ...
- The body has two types of bone. ...
- Bones are filled with a spongy tissue. ...
- Babies are born with 300 bones. ...
- The smallest bone in the body is in your ear. ...
- The longest bone in the body is in your leg. ...
- Bones are designed to take a beating.
What is appendicular skeletal system?
The appendicular skeleton is one of two major bone groups in the body , the other being the axial skeleton. The appendicular skeleton is comprised of the upper and lower extremities, which include the shoulder girdle and pelvis.
What are the 3 main functions of the musculoskeletal system?
The musculoskeletal system’s primary functions include supporting the body, allowing motion, and protecting vital organs . The skeletal portion of the system serves as the main storage system for calcium and phosphorus and contains critical components of the hematopoietic system.
What are cellular components of bone?
Bone is composed of four different cell types; osteoblasts, osteocytes, osteoclasts and bone lining cells . Osteoblasts, bone lining cells and osteoclasts are present on bone surfaces and are derived from local mesenchymal cells called progenitor cells.
What Bones consist?
Bones are made up of a framework of a protein called collagen, with a mineral called calcium phosphate that makes the framework hard and strong. Bones store calcium and release some into the bloodstream when it’s needed by other parts of the body.
