Diaphragm

This video tutorial explores the anatomy and function of the diaphragm, a key muscle in respiration. It covers the diaphragm's structure, including its peripheral attachments and major openings, such as the aortic, esophageal, and caval hiatuses. The tutorial explains the diaphragm's role in breathing, its neurovascular supply, and the causes and remedies for hiccups, a common involuntary spasm of the diaphragm.

What is the primary function of the diaphragm in the human body?

• To regulate blood pressure

• To aid in digestion

• To separate the thoracic and abdominal cavities

• To support the spine

Which major opening in the diaphragm allows the aorta to pass through?

• Thoracic duct

• Aortic hiatus

• Caval hiatus

• Esophageal hiatus

During inspiration, what happens to the diaphragm?

• It contracts and flattens

• It contracts and rises

• It expands and rises

• It remains stationary

Which arteries primarily supply blood to the diaphragm?

• Pulmonary arteries

• Intercostal arteries

• Superior phrenic arteries

• Inferior phrenic arteries

What is a common method to stop hiccups?

• Eating spicy food

• Exercising

• Holding your breath

• Drinking cold water