What is the purpose of the external intercostal?

What is prolactionoma? Is 3wks pregnant to early to get a posotive test result think you are but would only be 3 maybe 4wks along but got a neg test? What is a phrase for someone who hates aging? What do you call the smallest muscle found in the inner ear? Is the flu fatal to pregnant women? Can having Chronic Obstructive Pulmonary Disease cause plaque buildup in arteries? What results in either too much or too little movement as exemplified by Huntington's disease and Parkinson's disease? Why did Koch require all four steps in determining the cause of an infectious disease? What are the CPT codes for ligation of long saphenous veins? Does removing tonsils hurt? What causes your butt to cramp? When you take your braces off after two years will your faces structure change and will your lips stay popped out like you still have metal in your mouth? Is it safe to take 36mg concerta in the morning and 10mg Strattera and 10mg Celexa at night for ADHD and mild anxiety? Is cf autosomal or sex-linked? What is a small bump at the back of your head to the left at the bottom and that hurts faintly when pressed and has been the same size for a couple of weeks? Why are some people happier than others? When there is swelling of the appendages of the body what is the underlying condition? What is the two main division of the respiratory system? How would the karyotype of an organism the reproduces asexually differ from a human karyotype? How many pieces of hair does gray hair have?