Which part of the body is supplied by nerves form the thoracic cord?

Correct Answer: C

Rationale: Nerves from the thoracic cord supply the trunk of the body. The thoracic spinal cord region is responsible for supplying nerves to the chest, abdomen, and back—the areas that make up the trunk of the body. Each level of the thoracic spinal cord is associated with specific nerves that innervate different areas of the trunk, including the intercostal muscles, abdominal muscles, and other structures. Therefore, the trunk is the part of the body supplied by nerves from the thoracic cord.

Correct Answer: B

Rationale: Warts are caused by viral infections, mainly the human papillomavirus (HPV). Local destruction methods, such as cryotherapy (freezing), laser therapy, or chemical treatment, are the preferred treatments for warts in children. These methods physically destroy the wart tissue, helping to eliminate the virus and promote healing. Vaccination, corticosteroids, and specific antibiotic therapy are not typically prescribed treatments for warts.

Correct Answer: D

Rationale: Cystic fibrosis (CF) is an inherited genetic disorder caused by mutations in the CFTR gene, leading to the production of thick, sticky mucus. This increased viscosity affects various organs and systems in the body, causing multiple clinical manifestations. The abnormal secretions block the airways in the lungs, leading to recurrent lung infections, breathing difficulties, and ultimately respiratory failure. In the digestive system, the thick mucus blocks the pancreatic ducts, impairing the release of digestive enzymes, which can result in malabsorption and malnutrition. Additionally, the thick secretions can affect the liver, leading to complications like liver disease. Therefore, the primary factor responsible for the multiple clinical manifestations in cystic fibrosis is the increased viscosity of the mucous gland secretions, which impacts various systems in the body.

Correct Answer: C

Rationale: Oxygen therapy for patients with emphysema aims to maintain adequate oxygen levels in the blood while avoiding toxic levels of oxygen. The recommended flow rate for oxygen administration in patients with emphysema is typically 1-3 liters per minute. Increasing the flow rate above this range may lead to oxygen toxicity in these patients. Therefore, a safe and appropriate oxygen flow rate for a patient with emphysema would be around 6 L/min, making option C, 6 L/min, the correct choice from the provided options.

Correct Answer: D

Rationale: Primary mediastinal involvement is a hallmark feature of ALCL.