A patient presents with limited mobility in the knee joint post-injury. Which structure is most likely compromised?
Bursa
Tendons
Meniscus
Ligaments
The Correct Answer is C
A. Bursa: Bursae are fluid-filled sacs that reduce friction between tissues and when inflamed (bursitis) cause pain and localized swelling but usually do not produce major mechanical limitation of knee motion.
B. Tendons: Tendons connect muscle to bone and injury can limit movement by impairing muscle action, but isolated tendon injury typically affects specific movements rather than general joint mobility.
C. Meniscus: The menisci are fibrocartilaginous pads that cushion and stabilize the knee; tears frequently cause joint locking, catching, pain, and significant limitation of knee mobility.
D. Ligaments: Ligaments stabilize the joint and when torn can produce instability and pain that limit function, though mechanical locking and restricted range are more characteristically produced by meniscal damage.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
A. Irregular bone:Irregular bones have complex shapes (for example vertebrae) and do not describe the long, cylindrical femur.
B. Short bone:Short bones are roughly cube-shaped (for example carpals) and do not apply to the femur.
C. Long bone:Long bones are elongated with a shaft and two ends, which describes the femur as the prototypical long bone.
D. Flat bone:Flat bones are thin and plate-like (for example the sternum and skull bones) and are not the shape of the femur.
Correct Answer is D
Explanation
A. Osteoclast — builds new bone:Osteoclasts are large multinucleated cells that resorb (break down) bone matrix during remodeling rather than building new bone.
B. Chondrocyte — breaks down bone tissue:Chondrocytes produce and maintain cartilage matrix and do not directly break down bone tissue.
C. Osteoblast — maintains bone matrix:Osteoblasts synthesize and secrete osteoid (new bone matrix) and initiate mineralization; maintenance of the mature matrix is primarily the role of osteocytes.
D. Osteocyte — monitors and maintains bone tissue:Osteocytes are mature bone cells embedded in matrix that act as mechanosensors and help regulate mineral homeostasis and maintenance of bone tissue.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.