Question

The heart is covered by a membrane called

• A. Epidermis
• B. Dermis
• C. Epicardium
• D. Pericardium

Answer 1

The correct option is D

Pericardium

The correct option is D.

The explanation for the correct option:

1. A fibrous sac called the pericardium surrounds the heart and major blood arteries.
2. It helps the heart's motions, maintains it stable in the mediastinum, and keeps it safe away from the lungs and other mediastinal structures.
3. Additionally, it aids in normal heart function.
4. Usually, a thin layer of fluid exists between these layers.
5. However, if the pericardium is injured, the ensuing inflammation may result in an abundance of fluid.
6. Other causes of fluid accumulation around the heart that do not involve inflammation include bleeding, conditions connected to malignancy, and chest injuries.

The explanation for the incorrect options:

Option A:

1. The body's epidermis is the top layer of skin.
2. It defends your body from damage, keeps you hydrated, regenerates skin cells, and includes melanin, which gives skin its color.

Option B:

1. The innermost of the skin's two outer layers.
2. Connective tissue, blood arteries, sweat and oil glands, nerves, hair follicles, and other structures can all be found in the dermis.

Option C:

1. The outermost cell layer of the vertebrate heart is covered by the epicardium, an evolutionarily conserved layer of the mesothelium.

Final answer: The heart is covered by a membrane called the pericardium.