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Bones of the Appendicular Skeleton

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  • What bones make up the pectoral (shoulder) girdle?
    The clavicle (collarbone) and scapula (shoulder blade).
  • Function of the clavicle in the appendicular skeleton
    Connects the arm to the trunk and helps stabilize shoulder movements.
  • Role of the scapula
    Provides attachment for arm and chest muscles and allows a wide range of shoulder motion.
  • What is the humerus?
    The upper arm bone that supports arm movement.
  • Functions of the radius and ulna
    Forearm bones that allow rotation and movement of the wrist and hand.
  • How many carpal bones are there and their function?
    There are 8 carpal bones; they allow wrist flexibility.
  • What are metacarpals and their role?
    Five palm bones that support the hand.
  • Number and function of phalanges in the hand
    14 finger bones that enable fine movements and grasping.
  • Components of the pelvic girdle
    Hip bones: ilium, ischium, and pubis.
  • Functions of the pelvic girdle
    Attaches legs to axial skeleton, supports body weight, and protects pelvic organs.
  • What is the femur?
    The thigh bone; longest and strongest bone supporting body weight during standing and movement.
  • Role of the patella
    Protects the knee joint and improves leverage for thigh muscles.
  • Difference between tibia and fibula
    Tibia bears most weight; fibula stabilizes the ankle.
  • Number and function of tarsal bones
    Seven ankle bones that support body weight and allow foot movement.
  • What are metatarsals?
    Five foot bones that form the arch of the foot.
  • Number and function of phalanges in the foot
    14 toe bones that help with balance and walking.
  • Main functions of the appendicular skeleton
    Enable movement and locomotion, support and stabilize the body, protect organs, and provide muscle attachment points.