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MBLEX Study Guide: PRACTICE TEST 2025 Questions and Answers Which vessels can easily be seen on the dorsal surface of the hand? ....ANSWER ...-Veins Which muscle has the greatest affect on the return of venous blood and lymph to the heart? - ....ANSWER ...-Diaphragm List parts of small intenstine: - ....ANSWER ...-Duodenum, jejunum, ileum The digestive system is responsible for - ....ANSWER ...-the absorption of nutrients The thyroid gland is part of which system? - ....ANSWER ...-Endocrine Which of the following hormones would be elevated due to stress? ....ANSWER ...-cortisol Which is the body's largest organ? - ....ANSWER ...-The skin The primary function of the integumentary system is to..? - ....ANSWER ...-Provide protection Which bean-shaped structures are found throughout the body, with palpable groups found in the groin, axilla and neck? - ....ANSWER ...-Lymph nodes …FOR STUDENTS ONLY…©️2025 ALL RIGHTS RESERVED… 1