An athlete comes into the hospital saying he was informed by the athletic trainer that he broke a bone in his appendicular skeleton.
Which of the following bones could he have broken?
Mandible.
Radius.
Sternum.
Sacrum.
The Correct Answer is B
The radius is a part of the upper limb, which is supported by the pectoral girdle.
The pectoral girdle and the pelvic girdle, along with the bones of the limbs, form the appendicular skeleton.
Choice A is incorrect because the mandible is a part of the skull, which forms the axial skeleton.
Choice C is incorrect because the sternum is a part of the thorax, which forms the axial skeleton.
Choice D is incorrect because the sacrum is a part of the vertebral column, which forms the axial skeleton.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is ["Tibia"]
Explanation
The tibia, also known as the shinbone, is the larger of the two bones in the lower leg.
It is a long bone that extends from the knee joint to the ankle joint, and it plays an important role in supporting body weight and providing attachment sites for muscles.
The tibia has a triangular cross-section and features several surface landmarks, including the tibial plateau, the medial malleolus, and the tibial tuberosity.
The bone is also involved in the formation of the knee joint and the ankle joint, where it articulates with the femur and the talus bones, respectively.
Correct Answer is ["Mastoid process"]
Explanation
The mastoid process is a bony prominence located on the temporal bone of the skull, behind the ear.
It serves as an attachment site for several muscles, including the sternocleidomastoid and the splenius capitis.
The mastoid process also contains small air cells that are connected to the middle ear, which play a role in regulating the pressure within the ear.
In addition, the mastoid process is located in close proximity to several important structures, including the facial nerve, the internal jugular vein, and the sigmoid sinus.
Injuries to the mastoid process can occur as a result of trauma, infection, or tumors, and can cause pain, swelling, and other symptoms.
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