The gliding motion of the carpal bones uses _____ joints.
Hinge
Plane
Ball-and-socket
Condyloid
Pivot
The Correct Answer is B
Choice A reason: Hinge joints allow movement in one plane, such as flexion and extension, seen in the elbow and knee. They do not permit gliding motions.
Choice B reason: Plane joints are the correct answer. They allow bones to slide past each other in any direction along the plane of the joint. The carpal bones in the wrist articulate via plane joints, enabling gliding movements.
Choice C reason: Ball-and-socket joints allow multi-directional movement and rotation, such as in the shoulder and hip. They are not involved in the gliding motion of carpal bones.
Choice D reason: Condyloid joints permit movement in two planes, such as flexion/extension and abduction/adduction. They are found in the wrist but not between carpal bones.
Choice E reason: Pivot joints allow rotational movement around a single axis, such as the joint between the atlas and axis vertebrae. They do not facilitate gliding.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason: The frontal bone is part of the axial skeleton. It forms the forehead and contributes to the cranial vault.
Choice B reason: The mandible is the lower jawbone and is part of the axial skeleton due to its role in craniofacial structure.
Choice C reason: The scapula, or shoulder blade, is part of the appendicular skeleton. It connects the humerus (arm bone) with the clavicle and facilitates upper limb movement.
Choice D reason: The thoracic vertebrae are part of the vertebral column, which is central to the axial skeleton.
Choice E reason: The stapes is one of the auditory ossicles located in the middle ear and is part of the axial skeleton due to its role in sound transmission within the skull.
Correct Answer is D
Explanation
Choice A reason: Irregular bones have complex shapes and serve various functions, such as protection and muscle attachment, but they are not specialized for weight-bearing or resistance to twisting.
Choice B reason: Trabecular bone, also known as spongy bone, is lightweight and porous. It helps absorb shock and supports bone marrow but is not optimized for resisting twisting stresses.
Choice C reason: Interstitial bone refers to remnants of old osteons found between newer ones in compact bone. It is not a distinct tissue type adapted for mechanical stress.
Choice D reason: Compact bone is the correct answer. It is dense and organized into osteons, which provide strength and resistance to compressive and torsional forces. It forms the outer layer of bones and is especially prominent in the diaphysis of long bones.
Choice E reason: Spongy bone is adapted for shock absorption and lightness but lacks the dense structure needed to resist twisting and heavy loads.
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