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Nursing Elites

ATI TEAS 7

Anatomy

1. Neurons, the functional units of the nervous system, belong to which tissue type?

Correct answer: D

Rationale: The correct answer is D: Nervous tissue. Neurons are specialized cells that transmit nerve impulses and are the primary components of the nervous system. Nervous tissue is made up of neurons and supporting cells called neuroglia. Neurons are responsible for processing and transmitting information throughout the body, making them a crucial part of the nervous system. Epithelial tissue (A) is primarily involved in covering and lining surfaces, connective tissue (B) supports and connects other tissues, and muscle tissue (C) is responsible for movement. Therefore, neurons belong to nervous tissue, which is specialized for communication and coordination within the body.

2. Which type of muscle tissue is found in the walls of blood vessels and helps regulate blood flow?

Correct answer: B

Rationale: The correct answer is B: Smooth muscle. Smooth muscle is found in the walls of blood vessels and plays a crucial role in regulating blood flow by contracting and relaxing to adjust the diameter of the blood vessels. Skeletal muscle (option A) is responsible for movement of the body, cardiac muscle (option C) is found in the heart and responsible for pumping blood, and striated muscle (option D) refers to both skeletal and cardiac muscle due to their striated appearance. Therefore, the specific type of muscle tissue in blood vessel walls is smooth muscle.

3. Which of the following sentences uses the most formal language?

Correct answer: C

Rationale: The sentence uses more complex vocabulary ("cinematic experience") and avoids slang ("awesome," "flick").

4. Which type of muscle is characterized by voluntary control and is responsible for body movement?

Correct answer: c

Rationale: The correct answer is C: Skeletal muscle. Skeletal muscles are characterized by voluntary control, meaning they are under conscious control, allowing us to move our body parts as desired. These muscles are attached to bones and are responsible for movements such as walking, running, and lifting objects. Cardiac muscle (A) is found in the heart and is involuntary, while smooth muscle (B) is found in internal organs and is also involuntary. Connective tissue (D) provides support and structure to the body but is not responsible for body movements.

5. Which organelle is responsible for cellular respiration, producing ATP for energy?

Correct answer: B

Rationale: The correct answer is B: Mitochondria. Mitochondria are known as the powerhouse of the cell because they are responsible for cellular respiration, a process that produces ATP (adenosine triphosphate) for energy. The other organelles listed, such as the nucleus, Golgi apparatus, and vacuole, do not play a direct role in cellular respiration or ATP production. The mitochondria contain specialized structures like cristae and enzymes that carry out the biochemical reactions of cellular respiration, making them essential for energy production in the cell.

6. What is the formula to calculate acceleration?

Correct answer: A

Rationale: Acceleration is calculated as the change in velocity divided by the time taken.

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