The heart is mostly made of muscles that are wrapped in arteries and veins. It is located on the left portion of the chest and at normal pace, pumps twice a second.
The upper portion of your heart contains the atria, both right and left.
Atrial refers to the top portion of the heart and diastole is when the heart is at rest. Atrial diastole would be when the top portion of the heart is not beating.
The heart is deep to the pectoralis major. The pectoralis major is superficial to the heart.
Dermis
A heart attack
Which portion of the heart?
one of the pair of large blood vessels that branch off from the abdominal aorta (the abdominal portion of the major artery leading from the heart) and enter into each kidney.
The upper flat portion of the heart located at the level of the second rib is the base of the heart. It is where the great vessels such as the aorta and pulmonary arteries are attached, allowing blood to enter and exit the heart. The base of the heart is directed towards the right shoulder and is connected to the diaphragm and spinal column.
The Apex
The heart is deep to the pectoralis major. That muscle is superficial to the heart.
Carbohydrates
The heart.