All of the following cause demyelination except
A) heavy-metal ion poisoning.
B) diphtheria.
C) multiple sclerosis.
D) dopamine deficiency.
E) All of these cause demyelination.
D
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As a platelet plug forms at an injury site, platelets become activated and their cytosol
A. degranulates as they release chemicals such as ADP and thromboxane A2. B. degranulates as they release chemicals such as fibrinogen and prothrombin. C. becomes granular as they take up chemicals such as ADP and thromboxane A2. D. becomes granular as they take up chemicals such as fibrinogen and prothrombin.
The structure that provides posterior support to the larynx is the
A) glottis. B) cricoid cartilage. C) epiglottis. D) arytenoid cartilage. E) cuneiform cartilage.
The hormone ____________________ in males and the hormone ____________________ in females are responsible for the development and maintenance of these characteristics
Fill in the blank(s) with correct word
Which type of bone has concentric lamellae?
A. compact bone B. both spongy and compact C. spongy bone