In which autoimmune disease do antibodies attack the myelin sheath?
A. Rheumatoid arthritis
B. Systemic lupus erythematosus
C. Myasthenia gravis
D. Multiple sclerosis
Answer: D
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Choose the distinctive feature of lumbar vertebrae.
A) large, slender spinous process that projects inferiorly B) relatively large vertebral foramen C) massive, heart-shaped body D) relatively massive, stumpy spinous process that projects posteriorly E) round transverse foramina within the transverse processes
The major source of H+ is from metabolically produced CO2
a. True b. False Indicate whether the statement is true or false
Place the following in correct sequence from simplest to most complex:
1. molecules 2. atoms 3. tissues 4. cells 5. organs A) 1-2-4-3-5 B) 2-1-4-3-5 C) 1-2-3-4-5 D) 2-1-3-4-5
Respiratory control centers are located in the ________.
A) midbrain and medulla B) medulla and pons C) pons and midbrain D) upper spinal cord and medulla