Understanding Cardiac Anatomy and Functions

1. Where is the location of the heart?

Superior surface of diaphragm

Anterior to the vertebral column, posterior to sternum

Two thirds to the left of the midsternal line

The heart is located in the mediastinum, which is the central compartment of the thoracic cavity. It lies between the second and fifth intercostal spaces of the rib cage.

Explanation

The heart is located in the mediastinum, which is the central compartment of the thoracic cavity. It lies between the second and fifth intercostal spaces of the rib cage.

2. Where is the heart enclosed?

Epicardium, outer layer

Pericardium, doubble walled sac

Endocardium, inner lining

Myocardium, muscle layer

The heart is enclosed in the pericardium, which is a double-walled sac that surrounds the heart and provides support and protection. The myocardium is the muscle layer of the heart, the endocardium is the inner lining, and the epicardium is the outer layer.

Explanation

The heart is enclosed in the pericardium, which is a double-walled sac that surrounds the heart and provides support and protection. The myocardium is the muscle layer of the heart, the endocardium is the inner lining, and the epicardium is the outer layer.

3. What is the location of the heart?

In the abdomen

In the back

In the head

The heart is located in the chest cavity, slightly to the left of the center. It is protected by the rib cage and sits between the lungs.

Explanation

The heart is located in the chest cavity, slightly to the left of the center. It is protected by the rib cage and sits between the lungs.

4. What is the primary function of the superficial fibrous pericardium?

Regulates blood flow

Protects, anchors, and prevents overfilling

Stores nutrients

Produces hormones

The superficial fibrous pericardium primarily serves to protect the heart, anchor it in place, and prevent it from overfilling.

Explanation

The superficial fibrous pericardium primarily serves to protect the heart, anchor it in place, and prevent it from overfilling.

5. What are the two layers of the deep two layered serous pericardium?

Anterior, Posterior

ParietalVisceral

Outer, Inner

Superficial, Deep

The two layers of the deep two layered serous pericardium are parietal and visceral. The parietal layer is the outer layer while the visceral layer is the inner layer.

Explanation

The two layers of the deep two layered serous pericardium are parietal and visceral. The parietal layer is the outer layer while the visceral layer is the inner layer.