The pericardium, or pericardial sac,Multiple ChoiceAll of the choices are correct.is a double-layered, closed structure.has a tough, fibrous, connective tissue outer layer.has an inner layer of squamous epithelial cells.

The pericardium, or pericardial sacQuestion 1Answera.anchors the heart in the mediastinum.b.has all of these characteristics.c.has a tough fibrous connective tissue outer layer.d.has an inner layer of squamous epithelial cells.e.is a double-layered, closed structure.

Name the tough outermost layer of the sac that surrounds the heart.Multiple ChoiceFibrous pericardiumVisceral pericardiumEndocardiumEpicardium

The innermost layer of the heart is:Group of answer choicesEndocardiumMyocardiumEpicardiumVisceral Pericardium

What is the middle layer of the wall of the heart?Multiple choice question.pericardiummyocardiumendocardium

What layer lines the chambers of the heart?Multiple ChoiceEndocardiumMyocardiumEpicardiumPericardium