Synarthrotic joints __________.
Can be dislocated easily
Are freely movable
Are slightly movable
Are immovable
The Correct Answer is D
Choice A reason: Synarthrotic joints are structurally designed to be immobile, often found in areas like the skull where bones are tightly joined by fibrous tissue. Because of their rigidity and lack of movement, they are not prone to dislocation.
Choice B reason: Freely movable joints are classified as diarthroses, such as the shoulder or knee. Synarthrotic joints are the opposite, offering no movement between the bones.
Choice C reason: Slightly movable joints are called amphiarthroses, such as the joints between vertebrae. Synarthrotic joints do not allow even slight movement.
Choice D reason: Synarthrotic joints are immovable joints where bones are connected by fibrous tissue or cartilage. Examples include sutures in the skull. Their primary function is protection and structural stability.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is C
Explanation
Choice A reason: Preventing muscle fatigue is not the primary function of wave summation. Fatigue is influenced by metabolic factors and sustained activity, not by the summation of muscle twitches.
Choice B reason: While wave summation does increase muscle tension, this is a secondary effect. The main purpose is to produce a more sustained and coordinated contraction.
Choice C reason: Wave summation occurs when successive stimuli are delivered before the muscle has completely relaxed, leading to a stronger and smoother contraction. This mechanism allows for continuous muscle activity, making it the correct answer.
Choice D reason: Wave summation enhances, not lessens, muscle contraction. It builds upon previous contractions to produce a more forceful and sustained response. Therefore, this choice is incorrect.
Correct Answer is A
Explanation
Choice A reason: An epiphyseal plate is involved in endochondral ossification, not intramembranous ossification. It allows for longitudinal growth in long bones but is irrelevant to flat bone formation.
Choice B reason: Cartilage matrix deterioration is a hallmark of endochondral ossification, where cartilage is replaced by bone. Intramembranous ossification does not involve a cartilage precursor.
Choice C reason: The medullary cavity forms during endochondral ossification as part of the development of long bones. It is not a feature of intramembranous ossification.
Choice D reason: A bone collar forms around the cartilage model during endochondral ossification. Intramembranous ossification bypasses the cartilage stage entirely.
Choice E reason: Intramembranous ossification begins within fibrous connective tissue membranes. Mesenchymal cells differentiate directly into osteoblasts, which lay down bone matrix. This process is essential for forming flat bones like those of the skull and clavicle.
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.