Answer the following statements true (T) or false (F)
1. Nearly half of all Americans suffering from CVD are age 60 or younger.
2. Blockage in the coronary veins causes a heart attack, while the blockage of a cerebral artery causes a stroke.
3. Symptoms of arrhythmia are almost always severe and hard to ignore.
4. Men and women experience the same symptoms when having a heart attack.
5. Doctors recommend aspirin for patients with cardiovascular problems because it helps prevent blood clots.
1. T
2. T
3. F
4. F
5. T
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Myasthenia gravis is an autoimmune disease affecting the:
A. Myelin of peripheral nerves. B. ACh receptors at the neuromuscular junction. C. Release of ACh from the presynaptic terminal. D. Storage of calcium in the sarcoplasmic reticulum. E. Alpha motor neurons in the ventral horn of spinal cord.
Myxedema is the medical word for congenital hypothyroidism
Indicate whether the statement is true or false
The major disadvantage of duration recording is that the observer is limited to coding only a few behaviors
Indicate whether the statement is true or false
UV rays are strongest when the sun is ____
a. rising b. setting c. high in the sky d. behind a thin layer of clouds e. nearly hidden by clouds