skeleton Flashcards
provides a system of levers with which the skeletal muscles work to move the body.
skeleton
(the bones that lie
around the body’s center of gravity)
the axial skeleton
(bones of the
limbs, or appendages)
the appendicular skeleton
The three types of cartilage found in the body are
hyaline cartilage, elastic cartilage, and fibrocartilage.
is the most common type found in the body,
hyaline cartilage
is known for its flexibility.
elastic cartilage
provides strength and shock absorption.
Fibrocartilage
hyaline cartilage that cover the ends of most bones at
movable joints
Articular cartilages
Hyaline cartilage that connect the ribs to the sternum
Costal cartilages
Hyaline cartilage that are found in the larynx and other
respiratory structures
Respiratory cartilages
Hyaline cartilage that support the external nose
Nasal cartilages
Found in the external ear and the epiglottis (the guardian of the airway)
Elastic cartilage
Fibrocartilage that pads located between the vertebrae
Intervertebral discs
Fibrocartilage pads located in the knee joint
menisci
Fibrocartilage located where the hip bones join anteriorly
Pubic symphysis
The — bones of the adult skeleton are composed of two basic
kinds of osseous tissue that differ in their texture.
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is dense and made up of organizational units called osteons.
Compact bone
is composed of small trabeculae (columns) of bone and lots of open space.
Spongy (or cancellous) bone
such as the femur and phalanges (singularphalanx), are much longer than they are wide, generally consisting of a shaft with heads at either end. composed mostly of compact bone. S
Long bones
are typically cube shaped, and they contain more spongy bone than compact bone. The tarsals and carpals are examples.
Short bones
are generally thin, with two waferlike layers of compact bone sandwiching a thicker layer of spongy bone between them.
Flat bones
Bones that do not fall into one of the preceding categories are classified as—- The vertebrae examples
irregular bones.