The figure shows the bones of the right orbit. What bone does "D" represent?
A. Lacrimal
B. Zygomatic
C. Ethmoid
D. Maxilla
E. Frontal
Answer: A
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Eyelids serve two purposes: one is to protect the eye and the other is to
A. help spread antiviral solution. B. prevent excess mucus from obscuring vision. C. help distribute lacrimal fluid to cleanse and lubricate the surface. D. help distribute blood to the eye surface. E. help to control the transmission of the nerve impulse to the retina.
In which body cavities are the lungs located?
A) pleural, dorsal, and abdominal B) pleural, ventral, and thoracic C) pericardial, ventral, and thoracic D) mediastinal, thoracic, and ventral
An increase in growth hormone during growing years will cause
A. gigantism. B. acromegaly. C. pituitary dwarfism. D. diabetes insipidus.
The ability of white blood cells to leave the circulation and enter tissues is called ________.
A. margination B. diapedesis C. intrusion D. chemotaxis E. exocytosis