the anatomy of a body part is closely related to its physiology
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ATI Anatomy and Physiology Online Practice

1. The anatomy of a body part is closely related to its physiology.

Correct answer: A

Rationale: The statement is true. Anatomy and physiology are interconnected fields. Anatomy focuses on the structure of body parts, while physiology deals with the functions of those parts. Understanding the structure (anatomy) of a body part is crucial in comprehending how it functions (physiology). This interrelation is essential for healthcare professionals to diagnose and treat medical conditions effectively. Choice B is incorrect because anatomy and physiology are indeed closely related. Choice C is incorrect as well because the relationship between anatomy and physiology is a fundamental concept in the study of the human body. Choice D is incorrect as the statement is true.

2. The anatomical term that indicates a structure close to the surface is

Correct answer: C

Rationale: The correct answer is 'superficial.' In anatomy, the term 'superficial' refers to a structure that is close to the surface of the body. Choice A, 'anterior,' refers to the front of the body, not specifically to depth. Choice B, 'proximal,' refers to a structure that is closer to the point of attachment or trunk of the body. Choice D, 'superior,' indicates a structure that is above or higher in position.

3. When the body is placed in the anatomical position, which of the following is not true?

Correct answer: B

Rationale: In the anatomical position, the palms are facing forward, not backward. Choice A is correct because the head is indeed facing to the front. Choice C is correct as the body is erect. Choice D is correct as the upper limbs are positioned at the sides. Therefore, the incorrect statement is that the palms are facing forward.

4. Which of the following is a role of platelets in hemostasis?

Correct answer: A

Rationale: Platelets play a crucial role in hemostasis by forming plugs to stop bleeding. Choice B is incorrect because platelets do not promote vasodilation; instead, they help in vasoconstriction. Choice C is incorrect as the conversion of prothrombin to thrombin is a function of the coagulation cascade involving various clotting factors, not platelets. Choice D is incorrect as platelets do not directly activate calcium; instead, they play a role in the activation of other clotting factors.

5. What is the function of the gallbladder?

Correct answer: C

Rationale: The correct answer is C: Store and concentrate bile, a fluid produced by the liver that helps with fat digestion. The gallbladder stores bile produced by the liver and releases it to aid in the digestion of fats. Choice A is incorrect as the liver, not the gallbladder, filters blood and detoxifies harmful substances. Choice B is incorrect because the production of enzymes primarily occurs in the pancreas, not the gallbladder. Choice D is incorrect as the gallbladder's main role is not to further digest food but to store and release bile.

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