4. 20th/21st Century: Modern Medicine Flashcards
Who discovered penicillin and how did it come about?
Alexander Fleming discovered penicillin in 1928. He noticed that a mold (Penicillium notatum) killed bacteria in a petri dish, leading to the development of the first antibiotic.
What role did Florey and Chain play in the development of penicillin?
Howard Florey and Sir Norman Heatley (Chain was part of the team) developed a method to mass-produce penicillin during World War II, which made it widely available for use in treating infections.
What was the impact of penicillin during World War II?
Penicillin saved countless lives during WWII by treating bacterial infections, reducing deaths from wounds and preventing infections that were once fatal.
What are antibiotics and how do they work?
Antibiotics are medicines used to treat bacterial infections by either killing bacteria or inhibiting their growth. They work by targeting specific parts of bacterial cells without harming human cells.
What is antibiotic resistance, and why is it a growing concern?
Antibiotic resistance occurs when bacteria evolve to become resistant to the effects of antibiotics, often due to overuse or misuse. It makes infections harder to treat and threatens modern medicine.
What are some alternative medicines used alongside or instead of conventional treatments?
Alternative medicines include acupuncture, homeopathy, herbal remedies, and osteopathy. Some people use them to complement or replace traditional treatments, though their efficacy can vary.
How did World War I impact surgery?
World War I led to advancements in surgery, such as the development of better methods for dealing with wounds, the use of antiseptics, and the introduction of new techniques like plastic surgery for facial injuries.
How did World War II contribute to developments in surgery?
World War II saw the use of blood transfusions on a large scale, the development of techniques for treating shock and injuries, and the improvement of surgical methods, such as better use of anesthesia.
What is the importance of blood transfusions in modern medicine?
Blood transfusions save lives by replacing lost blood, often in surgery, accidents, or for people with conditions like anemia. They became more common after World War I and II.
How did the discovery of X-rays improve medical diagnosis?
X-rays, discovered by Wilhelm Roentgen in 1895, allow doctors to see inside the body without surgery, revolutionizing diagnosis and treatment of bone fractures and internal conditions.
What impact has technology had on surgery in the 21st century?
Modern technologies such as lasers, radiation, keyhole surgery, and robotic surgery have greatly improved precision, reduced recovery times, and allowed for less invasive procedures.
What is keyhole surgery, and what are its advantages?
Keyhole surgery (laparoscopic surgery) is a minimally invasive procedure where small incisions are made, and a camera and surgical instruments are inserted. It reduces recovery time and scarring.
How has laser surgery revolutionized medical procedures?
Laser surgery uses focused light to remove or reshape tissue. It is precise, reduces bleeding, and has a faster recovery time compared to traditional surgery.
What are the key ethical concerns regarding organ transplants?
Ethical concerns include the fairness of organ allocation, the risk of organ trafficking, and whether people should be required to donate organs after death.
How did the Boer War influence public health in Britain?
The Boer War (1899-1902) highlighted the poor health of recruits and the high death rates due to malnutrition and disease. It led to public concern and eventually contributed to the rise of social reforms