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. Which of the following is an organ of the respiratory system?

Correct answer: D

Rationale: The larynx is a vital organ of the respiratory system, responsible for producing sound and connecting the pharynx to the trachea. It plays a crucial role in breathing, swallowing, and vocalization. The brain, pancreas, and urethra are not part of the respiratory system; the brain is part of the nervous system, the pancreas is part of the digestive system, and the urethra is part of the urinary system. Therefore, the correct answer is the larynx.

3. Nerve tissue is composed of neurons and connective tissue cells that are referred to as which of the following?

Correct answer: B

Rationale: Neuroglia are specialized connective tissue cells that provide support and protection to neurons in the nervous system. They assist in the proper functioning of neurons and are essential for maintaining the overall health of nerve tissue. Therefore, in the context of nerve tissue composition, neuroglia are the connective tissue cells associated with neurons. The other choices, osteoblasts, osteocytes, and arterioles, are not the correct types of connective tissue cells found in nerve tissue. Osteoblasts are involved in bone formation, osteocytes are mature bone cells, and arterioles are small blood vessels that supply blood to tissues.

4. Which hormone is responsible for regulating the sleep-wake cycle?

Correct answer: A

Rationale: Melatonin, produced by the pineal gland, regulates the sleep-wake cycle by responding to light and darkness in the environment. It plays a crucial role in signaling the body when it's time to sleep and wake up, helping to establish and maintain a healthy circadian rhythm. Thyroxine, Insulin, and Cortisol do not directly regulate the sleep-wake cycle, making them incorrect choices for this question.

5. The anterior chamber of the eye lies between the ___________.

Correct answer: A

Rationale: The anterior chamber of the eye is the fluid-filled space located between the cornea and the iris in the front part of the eye. It contains aqueous humor and helps maintain intraocular pressure. The space between the iris and the lens is known as the anterior chamber, making option A, 'iris and lens,' the correct choice. Options B, C, and D are incorrect because they do not describe the correct anatomical location of the anterior chamber.

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