Name four questions related to heart function that you could answer by examining an ECG and one abnormal condition that may be indicated by each function.
What will be an ideal response?
1. What is the heart rate? Abnormal values could indicate tachycardia or bradycardia.
2. Is the rhythm of the heartbeat regular or irregular? Abnormal rhythm could indicate fibrillation.
3. Are all normal waves present in recognizable form? Electrical disorders in atria or ventricles could be indicated.
4. Does a QRS complex follow each P wave, and is the PR segment constant in length? Heart block may be indicated.
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The exact causes of inflammatory bowel diseases continue to be explored, but it is relatively clear that
A. the cause is allergy to a single particular food, and patients get immediate relief by simply not eating that food. B. individuals suffering from its effects are largely experiencing the consequences of the absence of immune mechanisms in the gastrointestinal tract. C. it can be easily diagnosed since its symptoms are always very specific and the affected areas are always limited to a very focused area within the small intestine. D. it is likely to result from a combination of environmental and genetic factors. E. it is equally common among people of all ages and racial groups within the population.
The membrane of a contractile cardiac muscle cell contains
A. no calcium pumps. B. calcium pumps that move calcium out of the cell. C. calcium pumps that move calcium into the cell. D. calcium pumps that open and allow calcium to diffuse down its concentration gradient to reach equilibrium.
Bacteria in the blood is termed ____________
Fill in the blank(s) with correct word
Which blood vessel supplies blood to the deep muscles of the neck and shoulder and to the first two costal interspaces?
A) intercostal artery B) costocervical artery C) subscapular artery D) long thoracic artery E) ventral thoracic artery