bradycardia refers to a heart rate that is
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ATI TEAS 7

TEAS 7 science practice questions

1. What does bradycardia refer to in terms of heart rate?

Correct answer: D

Rationale: Bradycardia refers to an abnormally slow heart rate, typically defined as less than 60 beats per minute. This condition can result in inadequate blood flow to meet the body's demands. It is crucial to distinguish between bradycardia and tachycardia, which is a fast heart rate, as they require different management strategies. Options A, B, and C are incorrect because they describe normal, slightly elevated, and significantly elevated heart rates, respectively, rather than an abnormally slow heart rate characteristic of bradycardia. Recognizing bradycardia is essential for appropriate evaluation and intervention in clinical settings.

2. Which organ is primarily responsible for detoxification in the body?

Correct answer: B

Rationale: The liver is the primary organ responsible for detoxifying chemicals and metabolizing drugs in the body. It plays a crucial role in breaking down toxins, filtering blood, and producing bile, making it essential for overall detoxification processes. The kidney primarily filters waste and excess substances from the blood to form urine. Lungs are responsible for gas exchange, not detoxification. The heart is responsible for pumping blood and does not play a direct role in detoxification processes.

3. What type of bone is the kneecap (patella)?

Correct answer: C

Rationale: The correct answer is C: Flat bone. The kneecap (patella) is classified as a flat bone. Flat bones are thin, flattened bones that provide protection and offer a broad surface for muscle attachment. The patella fits this description as it is a flat, triangular bone located in front of the knee joint, protecting the knee and providing attachment points for muscles like the quadriceps. Choice A, long bone, is incorrect as long bones are typically found in the arms and legs, not in the knee area. Choice B, short bone, is incorrect as short bones are cube-shaped and are not characteristic of the patella. Choice D, irregular bone, is incorrect as irregular bones have complex shapes and do not apply to the flat, triangular structure of the patella.

4. If every child in a certain family suffers from autism, what possible conclusion can be drawn about autism?

Correct answer: B

Rationale: The possible conclusion that can be drawn from every child in a certain family suffering from autism is that autism may be genetic. The fact that every child in the family has autism suggests a strong genetic influence on the condition within this particular family. This does not necessarily mean that autism is solely genetic in all cases, but in this specific family, the pattern of all children being affected points towards a genetic connection. Choice A is incorrect as the information provided does not suggest that autism is lethal. Choice C is incorrect as there is no evidence to support a relationship between autism and traditional nuclear family structures. Choice D is incorrect because a conclusion can be drawn from the given evidence, indicating a potential genetic link within this specific family.

5. What type of force enables a car to take a sharp turn while moving in a circular path?

Correct answer: A

Rationale: Centripetal force is the force that allows an object to move in a circular path. When a car takes a sharp turn, centripetal force acts towards the center of the circle, enabling the car to stay in the curved path. Tension force is transmitted through a string, rope, cable, or wire when pulled tight, and it is not directly related to a car's turning motion. Frictional force opposes motion and is not the primary force responsible for a car's ability to take a sharp turn. Gravitational force is the attraction between masses and does not directly influence a car's ability to maneuver in a curved path.

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