THORAX ABDOMEN AND PELVIS

MEDICAL

HEART AND PERICARDIUM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Which of the following is not true of the heart?
A
The heart is located within the mediastinum
B
The apex is located to the left of the Sternal midline at the level of the fifth intercostal space
C
The Base of the heat is located at the level of the second rib
D
The pericardium is composed of cardiac muscle
Explanation: 

Detailed explanation-1: -The Heart is enclosed in a thin pericardium formed of a single pericardial membrane. The given statement is false. It can rewrite as the heart is enclosed in a thin pericardium formed of a double pericardial membrane. The heart is a muscular pumping organ.

Detailed explanation-2: -It is composed of individual cardiac muscle cells joined by intercalated discs, and encased by collagen fibers and other substances that form the extracellular matrix. Cardiac muscle contracts in a similar manner to skeletal muscle, although with some important differences.

There is 1 question to complete.