Chapter 2: Skeletal System Flashcards
Skeletal system
This is the body’s framework that is comprised of joints and bones. It provides the focus and shapes for bodies. It also creates blood for the human body and stores minerals. The functionality, growth, and maturation of the skeletal system can be affected by activity, nutrition, and posture
Bones
Provide protection for vital organs and a resting place for muscles.
Joints
These are the junctions for muscles, bones and connective tissues where movement occurs. It is also known as articulation.
Axial skeleton: The area of the skeletal system that contains the rib cage, skull, and vertebral column. It consists of 80 bones.
Appendicular skeleton:
This is the area of the skeletal system that consists of the lower and upper extremities. It’s basically the legs, arms, appendage in appendicular. This contains 126 bones
Remodeling
This is the process of formation and resorption of bone. Is the process where the older bone is broken down and taken away by osteoclasts and new bone is made to replace it with cells called osteoblasts.
Osteoclasts
The cells that help remove bone tissue.
Osteoblasts
The cells that help create new bone tissue
Epiphysis
located at the end of long bones and a place that contains a large portion of red marrow involved in the production of red blood cells. This is one of the main locations for bone growth
Diaphysis:
This is the long portion of the bone that is considered the shaft. It is much more compact and strong.
Epiphyseal plate
This is the area of the long bone that connects the epiphysis to the diaphysis. This is a dividing layer of cartilage in cells that grow lengthwise to create the diaphysis
Periosteum
This is the dense and fibrous outer layer where muscles attach and a more delicate layer inside that can create bone
Medullary Cavity
This is the location where bone marrow is stored and where blood cell formation happens. Is a small cavity that is located in the shaft of the bone.
Articular Cartilage (Hyaline)
This is the inelastic, flexible yet firm type of connective tissue that is located at the end of bones at the joint.
Depressions
These are flat areas of a bone.
Processes
This is a part of the bone where ligaments in muscle attach