What is the most abundant substance in the human body?
A. Hydrogen
B. Glucose
C. Carbon
D. Water
Answer: D
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NAD, a key coenzyme used in the process of producing ATP, is produced from which water-soluble vitamin?
a. riboflavin b. vitamin B12 c. niacin d. vitamin B12
Autonomic nervous system fibers are involved in all of the following except ________.
A. adjusting heart rate and force B. regulating gastrointestinal motility C. changing the diameter of the pupil D. maintaining tonicity of the muscles of the neck E. altering salivary mucus secretion
Match each of the terms with the correct definition, description, or function.
a. diaphysis b. epiphyses c. periosteum d. endosteum e. medullary cavity f. osteoclast g. osteoblast h. canaliculi i. lacuna j. epiphyseal plate k. diarthrotic l. hematopoiesis m. synarthrotic n. articulations o. amphiarthrotic 1. _____ Bone-forming cells 2. _____ Hollow shaft of the long bone 3. _____ A bone can grow as long as this remains 4. _____ Thin layer of connective tissue that lines the medullary canal 5. _____ Small canals that carry nutrients to bone cells 6. _____ Tough connective tissue surrounding the shaft of long bones 7. _____ Hollow part of the bone where marrow is stored 8. _____ Bone-resorbing cells 9. _____ Small spaces in the bone matrix where bone cells are located 10. _____ Ends of long bones 11. _____ Type of joint that allows no movement 12. _____ Refers to the process of blood cell formation 13. _____ Type of joint that allows for free movement 14. _____ Another term for joints 15. _____ Type of joint that allows for slight, limited movement
Why do people experience an elevation of metabolic activity after smoking a cigarette?
What will be an ideal response?