Questions 40

ATI TEAS 7

ATI TEAS 7 Test Bank

ATI TEAS Science Questions

Question 1 of 5

Which of the following lists of joint types is in the correct order for increasing amounts of permitted motion (least mobile to most mobile)?

Correct Answer: A

Rationale: The correct order of joint types, from least mobile to most mobile, is hinge, condyloid, saddle. A hinge joint allows movement in one plane (like a door hinge), a condyloid joint allows movement in two planes but not rotation (like the wrist), and a saddle joint allows movement in multiple directions (like the thumb).
Choice A, 'Hinge, condyloid, saddle,' is the correct sequence as it accurately represents the order of increasing permitted motion in joints.

Choices B, C, and D are incorrect because they do not follow the correct order of joint types from least mobile to most mobile as required by the question.

Question 2 of 5

What is the function of the sinuses?

Correct Answer: C

Rationale: The correct function of the sinuses is to warm, humidify, and filter the air we breathe. Sinuses play a crucial role in preparing the air for the respiratory system by adding moisture, warmth, and filtering out particles.
Choice A is incorrect because while sinuses can help filter some particles, their primary function is not to trap pathogens.
Choice B is incorrect as the sinuses do not control the direction of air down the trachea; this is regulated by the epiglottis and vocal cords.
Choice D is incorrect as sinuses do not sweep pathogens away or direct them towards the trachea; instead, they condition the air for respiration.

Question 3 of 5

Which of the following best describes the statement 'This flower is dead; someone must have forgotten to water it'?

Correct Answer: C

Rationale: The correct answer is 'C: An inference.' An inference is a conclusion reached based on evidence and reasoning. In this statement, the conclusion that someone must have forgotten to water the flower is drawn from the evidence that the flower is dead.
Choice A, 'A classification,' is incorrect because the statement does not involve categorizing or grouping.
Choice B, 'An observation,' is incorrect as the statement goes beyond just stating a fact and makes a conclusion.
Choice D, 'A collection,' is unrelated to the process of drawing a conclusion based on the given evidence.

Question 4 of 5

Which blood component is chiefly responsible for clotting?

Correct Answer: A

Rationale: The correct answer is A: Platelets. Platelets are small cell fragments in the blood that play a crucial role in clotting. When there is an injury, platelets adhere to the site and release chemicals that help form a clot to prevent excessive bleeding. Red blood cells transport oxygen, antigens are substances that trigger an immune response, and plasma cells are a type of white blood cell involved in producing antibodies, none of which are primarily responsible for clotting.

Question 5 of 5

Which of the following touch receptors respond to light touch and slower vibrations?

Correct Answer: A

Rationale: The correct answer is A, Merkel's discs. Merkel's discs are touch receptors that respond to light touch and slower vibrations, making them ideal for detecting subtle tactile stimuli. Pacinian corpuscles are specialized in detecting deep pressure and high-frequency vibrations, not light touch or slower vibrations. Meissner's corpuscles, on the other hand, are sensitive to light touch and low-frequency vibrations, but they do not specifically respond to slower vibrations. Ruffini endings are responsible for detecting skin stretch and continuous touch pressure, differentiating them from Merkel's discs, which are specifically attuned to light touch and slower vibrations.

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