ATI TEAS 7
ATI TEAS Practice Science Test
1. In which position allows access to the stomach?
- A. Medial
- B. Prone
- C. Superficial
- D. Supine
Correct answer: B
Rationale: The question now specifies the need for a position that allows access to the stomach. The correct answer is 'B: Prone.' In the prone position, the patient lies face down, which facilitates access to the stomach for various procedures or examinations. Choice A, 'Medial,' refers to a direction rather than a patient position. Choice C, 'Superficial,' describes a superficial depth rather than a patient position. Choice D, 'Supine,' is a position where the patient lies face up, which does not provide easy access to the stomach.
2. How many electrons are typically found in each shell of a neutral aluminum atom with 13 electrons in its electron cloud?
- A. 6 in the first shell, 7 in the second shell
- B. 2 in the first shell, 11 in the second shell
- C. 2 in the first shell, 8 in the second shell, 3 in the third shell
- D. 3 in the first shell, 5 in the second shell, 5 in the third shell
Correct answer: C
Rationale: In a neutral aluminum atom with 13 electrons, the electron distribution typically follows the electron shell filling order based on the Aufbau principle. The first shell can hold a maximum of 2 electrons, the second shell can hold up to 8 electrons, and the third shell can hold up to 8 electrons as well. Therefore, the distribution would be 2 electrons in the first shell, 8 electrons in the second shell, and 3 electrons in the third shell, totaling 13 electrons. Choice A is incorrect as it exceeds the maximum number of electrons the shells can hold. Choice B is incorrect as it does not distribute the electrons correctly among the shells. Choice D is incorrect as it also does not distribute the electrons correctly among the shells.
3. The hypodermis is primarily composed of which tissue?
- A. Adipose
- B. Connective
- C. Epithelial
- D. Muscle
Correct answer: A
Rationale: The hypodermis, also known as the subcutaneous layer, is primarily composed of adipose (fat) tissue. Adipose tissue in the hypodermis serves as an insulator, energy reserve, and cushioning for the body. Choice B, Connective tissue, is a broad category that includes various types of tissue like adipose, but the hypodermis is specifically rich in adipose tissue. Choice C, Epithelial tissue, is not the primary component of the hypodermis; it is mainly found covering body surfaces and lining cavities. Choice D, Muscle tissue, is not a major component of the hypodermis; muscle tissue is mainly located deeper in the body and serves in movement and support functions.
4. A scientist wants to measure how far a person can run in 30 minutes. Which of the following units should be used to record this measurement as a small number?
- A. Gigameters
- B. Kilometers
- C. Megameters
- D. Terameters
Correct answer: B
Rationale: Kilometers are commonly used for shorter distances and would provide a small and practical number to measure distance in this context. Gigameters, Megameters, and Terameters are much larger units of measurement and would result in very large numbers, making them impractical for measuring the distance a person can run in 30 minutes. Therefore, the correct choice is Kilometers as it is a suitable unit for measuring such distances within a reasonable range.
5. Which represents the correct order of airflow in the lungs?
- A. Bronchi, trachea, alveoli, bronchioles
- B. Alveoli, bronchioles, bronchi, trachea
- C. Trachea, bronchi, bronchioles, alveoli
- D. Bronchioles, alveoli, trachea, bronchi
Correct answer: C
Rationale: The correct order of airflow in the lungs starts with air entering through the trachea, moving into the bronchi, then proceeding to the bronchioles, and finally reaching the alveoli where gas exchange occurs. Therefore, the correct sequence is Trachea, Bronchi, Bronchioles, Alveoli, making choice C the accurate representation of the airflow in the lungs. Choices A, B, and D are incorrect because they do not follow the anatomical path of airflow in the lungs as air moves from the trachea to the bronchi, then bronchioles, and finally the alveoli for gas exchange.
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