Connective tissue sacs lined with synovial membrane that act as cushions in places where friction develops are called:
Tendons
Bursae
Menisci
Joint cavities
Ligaments
The Correct Answer is D
Choice A reason: Tendons connect muscles to bones and transmit force during contraction. They do not act as cushions or reduce friction.
Choice B reason: Bursae are the correct answer. These are small fluid-filled sacs lined with synovial membrane that reduce friction between moving structures such as tendons and bones or skin and bones. They are commonly found near joints like the shoulder, elbow, and knee.
Choice C reason: Menisci are fibrocartilaginous pads found in certain joints like the knee. They help distribute weight and improve joint stability but are not fluid-filled sacs.
Choice D reason: Joint cavities are spaces within synovial joints that contain synovial fluid. While they allow movement, they are not separate cushioning structures like bursae.
Choice E reason: Ligaments connect bones to other bones and stabilize joints. They do not serve as cushions or reduce friction.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is E
Explanation
Choice A reason: The scapula is part of the appendicular skeleton, not the axial skeleton. Therefore, this combination is incorrect.
Choice B reason: The pelvis includes both axial and appendicular components, but the pelvic girdle is considered part of the appendicular skeleton. This makes the answer inaccurate.
Choice C reason: Both the pectoral and pelvic girdles are part of the appendicular skeleton. Including them in the axial skeleton is incorrect.
Choice D reason: Arms, legs, hands, and feet are all part of the appendicular skeleton. They are not included in the axial skeleton.
Choice E reason: This is the correct answer. The axial skeleton consists of the skull, vertebral column, and rib cage. These structures form the central axis of the body and protect vital organs such as the brain, spinal cord, and thoracic organs.
Correct Answer is A
Explanation
Choice A reason: Appositional growth is the correct answer. It refers to the process by which bones increase in diameter or thickness. This occurs when osteoblasts in the periosteum lay down new bone matrix on the outer surface, while osteoclasts resorb bone on the inner surface to maintain proper proportions.
Choice B reason: Concentric growth is not a recognized term in bone physiology. It may refer to circular layering in osteons but not to bone thickening.
Choice C reason: Interstitial growth occurs within cartilage and is responsible for lengthening during development. It does not contribute to bone thickness.
Choice D reason: Circumferential growth is a vague term and not commonly used in bone biology. It may imply growth around the circumference but is not the standard term for bone thickening.
Choice E reason: Epiphyseal plate closure marks the end of longitudinal bone growth during adolescence. It does not relate to increasing bone thickness.
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