There are over 65,000 known species of protozoa. About 10,000 species are parasitic.
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The training of an anesthesiologist typically requires four years of college, 4 years of medical school, 1 year of internship, and 3 years of residency.
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Oxytocin is recommended only for pregnancies that have a medical reason for inducing labor (such as eclampsia) and is not recommended for elective procedures or for making the birthing process more convenient.
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Drugs are in development that may cure asthma and hay fever once and for all. They target leukotrienes, which are known to cause tightening of the air passages in the lungs and increase mucus productions in nasal passages.
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Thyroid conditions may make getting pregnant impossible.
Muscle Contraction
Striated Muscle Fiber
Desmosomes and gap junctions, as shown in heart muscle.
Desmosomes and gap junctions, as shown in heart muscle: Desmosome