Practice Science TEAS Test

Correct Answer: B

Rationale: The correct answer is B: Vein. Veins carry blood back to the heart, while arteries carry blood away from the heart. Capillaries are tiny blood vessels where exchange of nutrients and waste occurs. Lymphatic vessels carry lymph fluid, not blood. Veins have valves to prevent backflow and low pressure due to distance from the heart.

Correct Answer: B

Rationale: The correct order of the layers of the epidermis from most superficial to deepest is: S. corneum, S. lucidum, S. granulosum, S. spinosum, S. basale (Choice B). This is because the outermost layer is the stratum corneum, followed by the stratum lucidum, then the stratum granulosum, stratum spinosum, and finally the stratum basale which is the deepest layer where new skin cells are produced. Choices A, C, and D do not follow this correct progression and therefore are incorrect.

Correct Answer: A

Rationale: The correct answer is A: Abdominal. The peritoneum primarily lines the abdominal cavity, providing a protective and lubricating membrane for the abdominal organs. The peritoneum does not line the dorsal (B), ventral (C), or thoracic (D) cavities. The dorsal cavity is lined by the meninges, the ventral cavity is lined by serous membranes, and the thoracic cavity is lined by the pleura. Therefore, the peritoneum specifically lines the abdominal cavity, making choice A the correct answer.

Correct Answer: B

Rationale: The correct answer is B: Cartilage. Cartilage is the type of tissue that protects the respiratory system's trachea. Cartilage provides structural support and flexibility to the trachea, allowing it to maintain its shape and prevent collapse during breathing. Bone (A) is too rigid for this function. Collagen (C) is a protein that provides strength but does not have the same supportive properties as cartilage. Keratin (D) is a protein found in skin, hair, and nails, not in the trachea. Therefore, cartilage is the most suitable tissue to protect the trachea in the respiratory system.

Correct Answer: B

Rationale: The correct answer is B: Luteinizing Hormone. The pituitary gland secretes luteinizing hormone, which plays a crucial role in the reproductive system by stimulating ovulation in females and testosterone production in males. Estrogen, progesterone, and testosterone are not directly released by the pituitary gland but are instead produced by other glands such as the ovaries, testes, and adrenal glands. Therefore, B is the correct choice as it is the hormone directly released by the pituitary gland.