Skeleton and Joints
Which of the following describes the movements known as pronation and supination?
The flexing of the arm with respect to the forearm around the elbow.
The swivelling of the foot to the medial and lateral directions.
The twisting of the wrist while the elbow is held motionless.
The rotation at the shoulder that causes the arm to describe a cone shape.
The twisting of the wrist while the elbow is held motionless.
Pronation occurs when the radius is moved from a position parallel to the ulna to one where it crosses over the ulna, and supination is the return motion (may be thought of as the action we perform when turning off a wall-mounted tap).
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Which of the following bones is part of the cranium?A. Occipital
B. Mandible
C. Hyoid
D. Carpal
On what bone does the acetabulum occur?
A. Occipital
B. Humerus
C. Pelvis
D. Tibia
What is the occipital bone?
A. It is one of the carpals.
B. It is a bone of the cranium.
C. It is one of the vertebrae.
D. It is a facial bone.
In which structure are osteoclasts and osteoblasts found?
A. In the periosteum
B. In the Haversian canals
C. In the lacunae of osteons
D. In the trabeculae of osteons
What is the physical function(s) performed by synovial fluid?
A. It forms a film that keeps the articulating surfaces of bone from touching.
B. It provides nutrients to the cells in cartilage and removes their waste.
C. It removes the heat generated by friction when the joint is in continuous use.
D. It lubricates the movement of articulating bones and distributes the pressure evenly across the joint.
What are the bones of the fingers known as?
A. Short bones
B. Metacarpals
C. Carpals
D. Phalanges
Carpals refers to
A. The points of attachment of ribs to vertebrae
B. Bones of the wrist
C. Bones that are embedded within a tendon
D. The thumbs
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