Match the following:
A) Comminuted
B) Greenstick
C) Spiral
1) An incomplete fracture or cracking of the bone without actual separation of the parts. Common in children.
2) Bone fragments into many pieces.
3) Common sports fracture resulting from a twisting force.
1) B Greenstick
2) A Comminuted
3) C Spiral
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Why do arteries lack the valves that are commonly present in veins?
A) No explanation is known. B) The blood pressure in arteries is too high to permit valves to function correctly. C) Arterial blood pressure is high enough that no valves are required to prevent the regurgitation of blood in the wrong direction. D) The statement is untrue; arteries have valves. E) None of the answers are correct.
What are the nutritional requirements for the nervous system's function?
A. Magnesium and potassium B. Sodium and potassium C. Iron and calcium D. Calcium and potassium
On a sagittal or coronal sectional image, the optic chiasma is in the vicinity of the ____________________.
Fill in the blank(s) with the appropriate word(s).
Sympathomimetic agents activate
A. nicotinic receptors. B. muscarinic receptors. C. adrenergic receptors. D. somatotrophic receptors. E. cholinergic receptors.