A child has learned how to draw circles in the air by moving the distal end of the index finger while holding the rest of his hand still. What type of movement?
A: abduction
B: adduction
C: circumduction
D: rotation
E: protraction
C: circumduction
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Thyroxin and triiodothyronine, hormones necessary for cell metabolism, are produced in the ________ gland
A) Adrenal B) Pituitary C) Thyroid D) Thymus
Red blood cells with an internal osmolarity of 300 mOsM are placed in the following solutions. Designate each solution according to its osmolarity and tonicity, and explain what happens to the cells and why.
A. 200 mOsM NaCl B. 400 mOsM urea C. 100 mOsM urea plus 200 mOsM NaCl D. 300 mOsM urea E. 300 mOsM NaCl F. 200 mOsM urea plus 300 mOsM NaCl G. 400 mOsM NaCl
What is the correct order for the vertebral regions, from superior to inferior?
A. Thoracic - cervical - lumbar - coccygeal - sacral B. Thoracic - sacral - lumbar - thoracic - coccygeal C. Thoracic - coccygeal - cervical - lumbar - sacral D. Cervical - thoracic - lumbar - sacral - coccygeal E. Cervical - thoracic - sacral - coccygeal - lumbar
A posterior and anterior root of each spinal segment unite to form a
A) cervical enlargement. B) lumbar enlargement. C) spinal nerve. D) spinal meninx. E) spinal ganglion.