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Nursing Elites

ATI TEAS 7

Anatomy

1. Tendonitis is an inflammation of the

Correct answer: B

Rationale: The correct answer is B: "Tendons." Tendonitis is a condition characterized by inflammation of the tendons, which are the tough bands of tissue that connect muscles to bones. This inflammation can result from overuse, injury, or aging. Muscles (Option A) are not typically inflamed in tendonitis, although they work in conjunction with tendons. Ligaments (Option C) connect bones to other bones and are not involved in tendonitis. Cartilage (Option D) is a smooth, flexible connective tissue that cushions joints and is not directly related to tendonitis.

2. Unlike the circulatory system, the lymphatic system does not have a pump. How does lymph move through the lymphatic vessels?

Correct answer: D

Rationale: The correct answer is D, 'All of the above.' Unlike the circulatory system which relies on the heart's pumping action, the lymphatic system lacks a central pump. Lymph moves through lymphatic vessels primarily due to muscle contractions and breathing movements that squeeze the vessels, helping propel the lymph forward. Additionally, one-way valves within the lymphatic vessels prevent the backward flow of lymph, ensuring it moves in the right direction. Therefore, all three mechanisms - heart pumping, muscle contractions, and one-way valves - work together to facilitate the movement of lymph through the lymphatic system.

3. The urethra is the tube that carries urine from the bladder to the outside of the body. How does urine flow through the urethra?

Correct answer: C

Rationale: The correct answer is C: "Under voluntary control of sphincter muscles." The urethra is the tube responsible for carrying urine from the bladder to the outside of the body. Urine flow through the urethra is not continuous but rather under voluntary control. The sphincter muscles, located at the opening of the bladder and urethra, help control the release of urine. This control allows individuals to regulate when and where they empty their bladder, providing a mechanism to prevent involuntary leakage of urine. Therefore, option C accurately describes how urine flows through the urethra.

4. A child's toy block is a cube with side lengths of 5cm. What is its total surface area?

Correct answer: D

Rationale: Use the formula for surface area of a cube: 6 * (side length)^2 = 6 * (5cm)^2 = 125 sq cm.

5. Two objects with equal masses collide head-on, both initially moving at the same speed. After the collision, they stick together. What is their final velocity?

Correct answer: A

Rationale: In an inelastic collision like this, kinetic energy is not conserved, but momentum is. Since the total momentum before the collision was zero (equal and opposite velocities), it must be zero after the collision as well, resulting in both objects stopping.

6. What happens to the potential energy of an object as it falls freely near the Earth's surface?

Correct answer: a

Rationale: As an object falls freely, its potential energy due to gravity decreases as it gets closer to the Earth's surface.

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