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Nursing Elites

ATI TEAS 7

Anatomy

1. Sweat glands help regulate body temperature by:

Correct answer: C

Rationale: The correct answer is C. Sweat glands help regulate body temperature by releasing a watery fluid that evaporates for cooling. When the body temperature rises, sweat glands produce sweat, which is mostly composed of water and salts. As this sweat evaporates from the skin's surface, it absorbs heat energy from the body, thus cooling it down. This process is essential for maintaining a stable body temperature during physical exertion or exposure to heat. Options A, B, and D are incorrect as sebum produced by sebaceous glands lubricates the skin, blood vessels dilate rather than constrict during sweating to release heat, and the epidermis does not thicken for insulation related to sweat glands.

2. In the reaction 2H2 + O2 → 2H2O, how many moles of oxygen are required to react completely with 4 moles of hydrogen?

Correct answer: 2

Rationale: The balanced equation indicates a 1:1 ratio between H2 and O2, so 4 moles of H2 require 4 moles of O2, and 2 moles of H2 require 2 moles of O2.

3. What type of particle carries no charge and mediates the strong nuclear force between protons and neutrons?

Correct answer: C

Rationale: Gluons are the force carriers of the strong nuclear force, holding protons and neutrons together within the nucleus.

4. Which of the following is the smallest unit of matter?

Correct answer: B

Rationale: An atom is the fundamental building block of matter, while molecules are formed by the combination of atoms.

5. Which part of the spinal cord is responsible for transmitting sensory information from the body to the brain?

Correct answer: a

Rationale: The correct answer is A: Dorsal root. The dorsal root of the spinal cord is responsible for transmitting sensory information from the body to the brain. This root contains sensory nerve fibers that carry information such as touch, temperature, and pain signals from the peripheral nervous system to the central nervous system. Ventral roots, on the other hand, are responsible for transmitting motor information from the brain to the muscles. Gray matter is primarily composed of nerve cell bodies and is involved in processing information, while white matter consists of myelinated nerve fibers that facilitate communication between different parts of the nervous system. Therefore, in this context, the dorsal root is the specific structure that handles sensory information transmission.

6. Which additional information would be MOST relevant to the topic of the passage?

Correct answer: B

Rationale: Studies on the psychological effects of social media use directly relate to the passage's concerns about mental health impacts, making it the most relevant information.

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