ATI TEAS 7
ATI TEAS 7 science review
1. How is the muscular system benefited by regular exercise?
- A. Decreasing muscle mass
- B. Improving muscle strength and endurance
- C. Making muscles less flexible
- D. Increasing the risk of muscle tears
Correct answer: B
Rationale: Regular exercise is beneficial for the muscular system by improving muscle strength and endurance. Exercise helps to build and maintain muscle mass, increase muscle strength, and enhance muscle endurance. It does not decrease muscle mass, make muscles less flexible, or increase the risk of muscle tears when done properly. Therefore, the correct answer is improving muscle strength and endurance, as it aligns with the positive effects of regular exercise on the muscular system.
2. What is the main function of the large intestine?
- A. To absorb proteins
- B. To absorb water and form feces
- C. To produce enzymes for digestion
- D. To store fat
Correct answer: B
Rationale: The main function of the large intestine is to absorb water and form feces from waste material. Choice A is incorrect because the absorption of proteins primarily occurs in the small intestine. Choice C is incorrect as the production of enzymes for digestion mainly takes place in the pancreas and small intestine. Choice D is incorrect as the storage of fat is not a primary function of the large intestine.
3. Which of the following organs is responsible for the mechanical breakdown of food into smaller pieces?
- A. Esophagus
- B. Stomach
- C. Small intestine
- D. Mouth
Correct answer: D
Rationale: The correct answer is D: Mouth. The mouth is responsible for the mechanical breakdown of food through chewing and mixing with saliva. This process is essential for breaking down food into smaller, more digestible pieces before swallowing. The esophagus (choice A) is a muscular tube that transports food from the mouth to the stomach and does not participate in the mechanical breakdown of food. The stomach (choice B) primarily functions to further break down food using acids and enzymes, rather than mechanical means. The small intestine (choice C) is responsible for absorbing nutrients from the digested food, not for the mechanical breakdown of food.
4. Long bones are one of the five major types of bones in the human body. Which of the following bones are long bones?
- A. Sacrum
- B. Clavicle
- C. Patella
- D. Ulna, Fibula, Humerus
Correct answer: D
Rationale: Long bones are characterized by their elongated shape and include bones like the ulna, fibula, and humerus. These bones are crucial for providing support, structure, and facilitating movement in the human body. The sacrum, clavicle, and patella are not classified as long bones. The sacrum is a triangular bone at the base of the spine, the clavicle is a collarbone, and the patella is the kneecap. While these bones have important functions, they do not fit the definition of long bones due to their shape and structure.
5. Which part of the brain is responsible for memory and learning?
- A. Cerebellum
- B. Cerebrum
- C. Medulla oblongata
- D. Brainstem
Correct answer: B
Rationale: The correct answer is B - Cerebrum. The cerebrum, not the cerebellum as in choice A, is the largest part of the brain and is responsible for memory, learning, and higher cognitive functions. It processes sensory information, enables reasoning, and decision-making, all crucial for memory formation and learning processes. Choices C and D, Medulla oblongata and Brainstem respectively, do not primarily play roles in memory and learning processes. The Medulla oblongata is mainly involved in regulating vital autonomic functions like breathing and heart rate, while the Brainstem serves as a pathway for neural communication and houses essential control centers for basic life functions, not memory and learning.
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