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Nursing Elites

ATI TEAS 7

Anatomy

1. What is the largest part of the brain and is responsible for higher functions like thinking, memory, and learning?

Correct answer: C

Rationale: The correct answer is C: Cerebrum. The cerebrum is the largest part of the brain and is responsible for higher functions like thinking, memory, and learning. It is divided into two hemispheres (left and right) and is associated with intelligence, creativity, reasoning, and problem-solving abilities. The brainstem (option A) is responsible for basic life functions like breathing and heart rate. The cerebellum (option B) is involved in coordination and balance. The thalamus (option D) acts as a relay station for sensory information. Therefore, the cerebrum is the most appropriate choice for the part of the brain responsible for higher cognitive functions.

2. What is the unit of force in the SI system?

Correct answer: A

Rationale: Force is measured in Newtons, named after Isaac Newton who formulated the laws of motion.

3. A keystone species plays a critical role in an ecosystem because its removal would:

Correct answer: D

Rationale: Rationale: Keystone species are species that have a disproportionately large effect on their environment relative to their abundance. They play a critical role in maintaining the structure and function of an ecosystem. If a keystone species is removed from an ecosystem, it can disrupt the food web by causing imbalances in predator-prey relationships. This disruption can lead to cascading effects on other populations within the ecosystem, potentially causing population declines or even extinctions. Therefore, the removal of a keystone species would have significant impacts on the overall ecosystem structure, making option D the correct answer.

4. What is the name of the tough, fibrous connective tissue that attaches muscle to bone?

Correct answer: C

Rationale: The correct answer is C: Tendon. A tendon is the tough, fibrous connective tissue that attaches muscle to bone. Fascia (A) is a connective tissue that surrounds muscles, while perimysium (B) is the connective tissue surrounding bundles of muscle fibers. Ligaments (D) are tough bands of tissue that connect bones to other bones. Understanding the function and structure of tendons is crucial for biomechanics and movement as they play a vital role in transmitting forces from muscles to bones, allowing for movement and stability in the body.

5. A person is pushing a box across the floor. Which of the following forces is NOT doing work?

Correct answer: A

Rationale: Work is defined as the force applied in the direction of motion multiplied by the distance moved. Since the normal force acts perpendicular to the motion, it does not contribute to work.

6. Imaginary unit multiples are used to represent numbers that cannot be obtained on the number line. Which of the following is equivalent to 5i?

Correct answer: C

Rationale: Rationale: - The imaginary unit, denoted as "i," is defined as the square root of -1. - Therefore, 5i can be expressed as 5 times the square root of -1, which is equivalent to 5√-1. - Option A, -5, is a real number and not an imaginary unit multiple. - Option B, i^5, is equal to i because i raised to any power that is a multiple of 4 results in 1, and i^5 is equivalent to i. - Option D, 1/5i, is the reciprocal of 5i and not equivalent to 5i.

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