cardiac sac

简明释义

心囊

英英释义

例句

1.During the surgery, the team had to carefully navigate around the cardiac sac 心包 to avoid damaging it.

在手术过程中，团队必须小心地绕过心包以避免损伤它。

2.Patients with pericarditis often report pain in the area surrounding the cardiac sac 心包.

患有心包炎的患者常常报告在心包周围区域的疼痛。

3.The echocardiogram showed an abnormality in the cardiac sac 心包, indicating a possible infection.

超声心动图显示心包有异常，提示可能存在感染。

4.The doctor explained that the inflammation of the cardiac sac 心包 can lead to serious complications.

医生解释说，心包的炎症可能会导致严重的并发症。

5.The cardiac sac 心包 plays a crucial role in protecting the heart from infections.

心包在保护心脏免受感染方面起着至关重要的作用。

作文

The human body is a complex system of organs and structures that work together to maintain life. One of the most vital components of this system is the heart, which is responsible for pumping blood throughout the body. To understand the heart's function, we must first explore its anatomy, including the role of the cardiac sac. The cardiac sac (心包) is a double-walled structure that surrounds the heart, providing both protection and support. It consists of two layers: the outer fibrous layer and the inner serous layer. This unique design allows the heart to function effectively while being shielded from external trauma.The primary purpose of the cardiac sac is to contain the heart and prevent it from moving excessively within the thoracic cavity. This stability is crucial, especially during physical activities when the heart beats rapidly and vigorously. Additionally, the cardiac sac contains a small amount of fluid known as pericardial fluid, which acts as a lubricant. This fluid reduces friction between the heart and the surrounding structures, allowing for smooth movement as the heart expands and contracts with each heartbeat.In medical terms, any condition that affects the cardiac sac can lead to serious health complications. For instance, pericarditis is an inflammation of the cardiac sac, which can cause chest pain and discomfort. If left untreated, this condition can lead to more severe issues, such as cardiac tamponade, where fluid accumulates in the cardiac sac and compresses the heart, inhibiting its ability to pump effectively. Understanding the significance of the cardiac sac is essential for both healthcare professionals and patients alike.Moreover, the cardiac sac plays a role in maintaining the heart's position within the chest cavity. It anchors the heart to surrounding structures, ensuring that it remains in place as the body moves. This anchoring effect is particularly important during physical exertion, as it helps to prevent any unnecessary strain on the heart due to sudden movements.Research continues to uncover more about the cardiac sac and its functions. With advancements in imaging technology, doctors can now visualize the cardiac sac in detail, aiding in the diagnosis of various heart conditions. This knowledge is invaluable, as it allows for timely interventions that can save lives.In conclusion, the cardiac sac (心包) is a crucial component of the cardiovascular system. Its protective and supportive roles are vital for the heart's functionality and overall health. By understanding the anatomy and physiology of the cardiac sac, we can appreciate the complexities of the heart and the importance of maintaining its health. Awareness of conditions affecting the cardiac sac can lead to better health outcomes and improved quality of life for individuals suffering from heart-related issues.