which type of joint is found in the hip
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HESI A2

HESI A2 Anatomy and Physiology Quizlet

1. Which type of joint is found in the hip?

Correct answer: B

Rationale: The correct answer is B: Ball and socket joint. The hip joint is classified as a ball and socket joint, allowing for a wide range of movement in multiple directions, including rotation. This joint structure provides stability and mobility, making it ideal for the hip's functions in bearing weight and facilitating various movements. Choice A, Hinge joint, is incorrect as hinge joints allow movement in only one plane, like the elbow or knee. Choice C, Pivot joint, is incorrect as pivot joints allow rotation around a single axis, like the joint between the first and second vertebrae. Choice D, Saddle joint, is incorrect as saddle joints are found in the thumb and allow movement in two planes, but they do not describe the hip joint.

2. Select the phrase that will make the following sentence grammatically correct. Dr. Johnson had a serious look when he _________.

Correct answer: A

Rationale: The correct answer is 'A - spoke to the patient’s parents.' In this sentence, the past tense 'spoke' should be used to match the past tense 'had,' indicating an action that already took place. Choices B, C, and D are incorrect because they use present or future tenses, which do not match the past tense 'had' in the sentence.

3. Report all decimal places: 3.7 + 7.289 + 4 =

Correct answer: A

Rationale: To find the sum, you add the numbers 3.7, 7.289, and 4 together. 3.7 + 7.289 + 4 equals 14.989. The correct answer is 14.989 because it includes all decimal places from the sum of the numbers provided. Choice B (5.226) is incorrect as it doesn't account for the sum of the given numbers. Choice C (15.0) is incorrect as it rounds the sum to the nearest whole number, losing the decimal precision. Choice D (5.012) is incorrect as it doesn't reflect the correct sum of the decimal numbers.

4. In physics, the relationship between acceleration and force is expressed in ___________.

Correct answer: B

Rationale: The relationship between acceleration and force is expressed in Newton’s second law of motion. This law states that the acceleration of an object is directly proportional to the net force acting on the object and inversely proportional to the object's mass. Mathematically, this relationship is represented as F = ma, where F is the force, m is the mass of the object, and a is the acceleration. Choice A, Newton’s first law of motion, also known as the law of inertia, states that an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an external force. Choice C, Newton’s third law of motion, states that for every action, there is an equal and opposite reaction, focusing on the interaction between two objects. Choice D is incorrect because the relationship between acceleration and force is indeed described by one of Newton’s laws of motion, specifically the second law.

5. What is the chemical reaction that involves breaking down a compound into component parts?

Correct answer: A

Rationale: Decomposition is the correct answer because in a decomposition reaction, a compound is broken down into simpler substances. This type of reaction involves the splitting of a compound into its component parts, often through the use of heat, light, or electricity. Synthesis (choice B) is the opposite process where simpler substances are combined to form a more complex compound. Combustion (choice C) is a reaction involving rapid oxidation often accompanied by heat and light. Single replacement (choice D) is a reaction where one element replaces another in a compound.

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