Question

which of the following is not a bone of the appendicular skeleton?
sternum
radius
humerus
fibula
femur
question 4
1.5 pts
the elbow joint is an example of a _.
saddle joint
ball and socket joint
hinge joint
pivot joint

Explanation:

• First question: The appendicular skeleton includes bones of the limbs (such as radius, humerus, fibula, femur) and the pectoral and pelvic girdles. The sternum is part of the axial skeleton (which includes the skull, vertebral column, and thoracic cage).
• Second question: A hinge joint allows movement in one plane (flexion - extension). The elbow joint (like the knee joint) is a classic example of a hinge joint. A saddle joint (e.g., carpometacarpal joint of the thumb) allows movement in two planes. A ball - and - socket joint (e.g., hip and shoulder) allows multi - directional movement. A pivot joint (e.g., atlanto - axial joint) allows rotational movement.

Answer:

• First question: Sternum
• Second question: hinge joint