appendicular skeleton

(noun)

The appendicular skeleton is composed of 126 bones in the human body involved in locomotion (lower limbs) of the axial skeleton and manipulation of objects in the environment (upper limbs).

Related Terms

  • axial skeleton
  • Skeletal System

Examples of appendicular skeleton in the following topics:

  • The Appendicular Skeleton

  • Overview of the Appendicular Skeleton

    • In the human body, the appendicular skeleton is unfused (unlike the axial skeleton), which allows for a much greater range of motion.
    • The appendicular skeleton is composed of 126 bones.
    • Note that these areas may include other bones that are not a part of the appendicular skeleton; they are instead a part of the axial skeleton.
    • The femur, tibia, patella, and fibula are all a part of the appendicular skeleton.
    • The appendicular skeleton is composed of the six major regions shown here.
  • The Appendicular Skeleton

    • The appendicular skeleton includes the skeletal elements within the limbs, as well as supporting pectoral and pelvic girdles.
    • The appendicular skeleton of vertebrates, including humans, consists of the bones that support and compose the appendages (for example, the arms and legs of humans).
    • The appendicular skeleton includes the skeletal elements within the limbs, as well as supporting the pectoral and pelvic girdles.
    • The appendicular skeleton comprises 126 bones and is involved in locomotion and manipulation of objects in the environment.
    • Image depicting the human skeleton with the appendicular skeleton colored red.
  • Divisions of the Skeletal System: Axial and Appendicular

    • The skeletal system is divided into two distinct divisions: the axial skeleton and the appendicular system.
    • As a result, an average adult skeleton consists of 206 bones .
    • It is a complex structure with two distinct divisions: the axial and the appendicular skeletons.
    • The appendicular skeleton is composed of 126 bones in the human body.
    • Differentiate the purpose and the number of bones of the axial and appendicular skeletons
  • The Axial Skeleton

    • The axial skeleton functions to support and protect the organs of the dorsal and ventral cavities and serves as a surface for the attachment of muscles and parts of the appendicular skeleton.
    • The axial skeleton is the part of the skeleton that consists of the bones of the head and trunk of a vertebrate animal, including humans.
    • It also serves as a surface for the attachment of muscles and parts of the appendicular skeleton.
    • The human’s axial skeleton is composed of 80 bones and is the central core of the body.
    • The primary divisions of the skeleton system are:
  • Overview of the Axial Skeleton

    • The axial skeleton consists of the 80 bones along the central axis of the human body.
    • The axial skeleton consists of the 80 bones along the central axis of the human body.
    • The axial skeleton and the appendicular skeleton together form the complete skeleton.
    • The human rib cage, also known as the thoracic cage, is a bony and cartilaginous structure which surrounds the thoracic cavity and supports the pectoral girdle, forming a core portion of the human skeleton.
  • The Axial Skeleton

  • Fibrous Skeleton of the Heart

    • The cardiac skeleton, also known the heart's fibrous skeleton, consists of dense connective tissue in the heart that separates the atria from the ventricles.
    • The cardiac skeleton, or fibrous skeleton of the heart, is the structure of dense connective tissue that separates the atria from the ventricles.
    • The fibrous skeleton provides critical support for the heart and separates the flow of electrical impulses through the heart.
    • The fibrous skeleton of the heart acts as an insulator for the flow of electrical current across the heart.
    • The fibrous skeleton of the heart also protects against cardiac arrhythmias.
  • Regional Terms and Axes

    • The Appendicular Region makes up the parts of the human body that connect to the axial region.
    • These are the two basic categories of regional terms; however, many other terms are used to describe smaller regions within the axial and appendicular regions.
    • For example, the brachial region consists of the arm as a part of the appendicular region, while the abdominal region consists of the abdomen as a smaller part of the axial region.
  • Development of the Skeleton

    • Early in gestation, a fetus has a cartilaginous skeleton that becomes skeletal bones in the gradual process of endochondral ossification.
    • Early in gestation, a fetus has a cartilaginous skeleton from which the long bones and most other bones gradually form throughout the remaining gestation period and for years after birth in a process called endochondral ossification.
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