Which term describes a joint that is immovable?
Synovial
Amphiarthrosis
Synarthrosis
Diarthrosis
The Correct Answer is C
A. Synovial: Synovial describes a freely movable joint with a joint cavity and synovial fluid, not an immovable joint.
B. Amphiarthrosis: Amphiarthrosis refers to a joint that permits slight movement, such as the pubic symphysis.
C. Synarthrosis: Synarthrosis denotes an immovable joint where bones are tightly joined, for example cranial sutures.
D. Diarthrosis: Diarthrosis is another term for freely movable joints (synovial joints) that allow a wide range of motion.
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Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is D
Explanation
A. Chondrocytes:Chondrocytes maintain cartilage and are not the principal cells responsible for bone resorption in osteoporosis.
B. Fibroblasts:Fibroblasts synthesize connective tissue matrix and are not the main drivers of bone density loss.
C. Osteoblasts:Osteoblasts form new bone, and reduced rather than increased osteoblastic activity contributes to osteoporosis when bone formation lags behind resorption.
D. Osteoclasts:Osteoclasts resorb bone matrix, and increased osteoclastic activity relative to formation leads to net bone loss seen in osteoporosis.
Correct Answer is B
Explanation
A. Clavicle:The clavicle is part of the pectoral (shoulder) girdle and belongs to the appendicular skeleton, not the axial skeleton.
B. Sternum:The sternum is a central bone of the thoracic cage (breastbone) and is part of the axial skeleton.
C. Femur:The femur is the thigh bone of the lower limb and is part of the appendicular skeleton.
D. Scapula:The scapula (shoulder blade) is part of the pectoral girdle and belongs to the appendicular skeleton.
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