which of the following is the primary function of the lymphatic system
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Nursing Elites

ATI TEAS 7

TEAS version 7 quizlet science

1. What is the primary function of the lymphatic system?

Correct answer: B

Rationale: The primary function of the lymphatic system is to carry waste products away from tissues. Lymphatic vessels collect excess fluid, waste materials, and toxins from the body's tissues and transport them to the bloodstream for elimination. Choice A is incorrect because transporting oxygen and nutrients to cells is mainly the function of the circulatory system. Choice C is incorrect as regulating body temperature is primarily done by the body's thermoregulatory mechanisms. Choice D is incorrect because the production of red blood cells occurs in the bone marrow, not in the lymphatic system.

2. What is the term for the energy released during a chemical reaction?

Correct answer: D

Rationale: The correct answer is 'Exothermic energy.' During an exothermic reaction, energy is released in the form of heat. The term 'exothermic' signifies that energy is moving outward, typically in the form of heat, throughout the reaction, leading to a decrease in the system's internal energy. Choice A, 'Kinetic energy,' refers to the energy of motion and is not specifically related to chemical reactions. Choice B, 'Potential energy,' is the energy stored within an object due to its position or state and is not directly related to energy released in a chemical reaction. Choice C, 'Heat energy,' is a form of energy but does not specifically describe the energy released during a chemical reaction.

3. Which plane divides the body into left and right halves?

Correct answer: A

Rationale: The correct answer is A: Sagittal/Median Plane. This plane divides the body into left and right halves. The Frontal/Coronal Plane (choice B) divides the body into front and back, while the Transverse/Cross-Section Plane (choice C) divides it into top and bottom. The Horizontal Plane (choice D) divides the body into upper and lower portions. Understanding these planes is essential in anatomy as they help describe the orientation and relationships of body structures.

4. In which medium does light propagate at its highest speed?

Correct answer: A

Rationale: Light travels at its highest speed in a vacuum. However, among the options provided, air is the closest medium to a vacuum, making it the correct answer. In general, light travels slower in denser mediums due to interactions with atoms and molecules in the medium. Water, glass, and diamond are denser mediums compared to air, causing light to propagate at slower speeds in these materials, hence making them incorrect choices.

5. Which muscle causes a joint to bend?

Correct answer: C

Rationale: The correct answer is C: Flexor. A flexor muscle contracts to bend a joint, such as bending the elbow or knee. Flexor muscles are responsible for flexing or bending a joint, while extensor muscles are responsible for extending or straightening a joint. Choice A, Cardiac, is incorrect as cardiac muscle is found in the heart and is responsible for pumping blood. Choice B, Extension, is incorrect as extension refers to the straightening or extending movement of a joint, which is opposite to bending. Choice D, Smooth, is incorrect as smooth muscles are involuntary muscles found in organs like the intestines and blood vessels, not directly responsible for bending joints.

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