This type of joint features two bone plates that glide against one another.
Gliding joints
100
These types of bones are longer than they are wide and are the major bones of the limbs. They grow more than the other classes of bone throughout childhood and are responsible for our height as adults
Long bones
100
How does the skeletal system help movement?
skeletal muscle is attached to bone so it pulls on the bone when it contracts
100
What is osteoporosis?
A condition in which bones become weak and brittle. The bone loses calcium, becomes thinner, and may disappear completely
100
How many bones do we have?
206
200
They allow no movement. The bones are interlocked and held together by connective tissue, or they are fused. The places where the bones in the skull meet are example of this.
Immovable joints
200
These types of bones are about as long as they are wide and are often cubed or round in shape. The carpal bones of the wrist and the tarsal bones of the foot are examples of these.
Short bones
200
How does the skeletal system provide support? Protection?
protection: surrounds soft tissue. ex: ribs and sternum protect the heart and lungs, - skull protects the brain
Support: Provides structural support for the entire body by being the frame everything attaches to
200
How is leukemia relevant to the skeletal system?
It is related to bones because the bone marrow produces blood cells and leukemia is a cancer of blood-forming tissues, hindering the body's ability to fight infection.
200
Why do we stop growin?
Bone tissue replaces cartilage, the bones become very ossified, and the person "stops growing". We stop growing in the late teens, but the body is constantly remodeling through activity of osteoclasts and osteoblasts
300
This type of joint is formed between two or more bones where the bones can only move along one axis to flex or extend.
Hinged joint
300
What do long bones have that flat bones don't?
medullary cavity which is a found in the center of long bones and serves as a storage area for bone marrow.
300
How does the skeletal system help mineral homeostasis?
Bones stores calcium and phosphorus--minerals are released into the blood when needed
300
What is Paget's disease?
A disease that leads to the bones to break down faster than they rebuild. Normally this process is kept in balance, but the accelerated breakdown occurring in Paget's results in fragile bones with an increased risk of fracture.
300
The tough layer of connective tissue surrounding the bone, through which some blood vessels pass through carrying oxygen and nutrients to the bone
Periosteum
400
They permit movement in many directions. They allow the widest range of movement in any joint. Your shoulder and your hip are both ball-and-socket joints
Ball and socket joint
400
What are irregular bones?
Irregular bones have a shape that does not fit the pattern of the long, short, or flat bones. The vertebrae, sacrum, and coccyx of the spine are examples of these bones.
400
Does the skeletal system produce blood?
Yes, red bone marrow produces red blood cells, white blood cells and other blood elements
400
What is osteogenesis Imperfecta?
Genetic disorder that is characterized by brittle bones that break or fracture easily because of a gene defect in the production of collagen.
400
What does the Axial Skeleton do?
supports the central axis of the body (consists of the skull, the vertebral column, and the rib cage)
500
They allow one bone to rotate around another and provide for the twisting movement of the bones of the forearm (radius and ulna) against the upper arm, a movement used, for instance, in unscrewing the lid of a jar.
Pivot joint
500
What are Sesamoidbones bones?
The sesamoid bones are formed after birth inside of tendons that run across joints. Sesamoid bones grow to protect the tendon from stresses and strains at the joint and can help to give a mechanical advantage to muscles pulling on the tendon.
500
How does the skeletal system provide storage?
Storage of minerals and lipids(fats)---yellow marrow stores fat --(found in long bones)
500
What is Acromegaly?
A bone condition caused by excess of growth hormone production by the body. Overgrown bones in hands, face, and fee characterize this disease
500
Where is the cartilage in adults found?
By adulthood, most of it is gone, replaced by hard bones. But, there are still some places it is present, such as the outer ear, and the tip of the nose, and where the ribs attach to the sternum