Institute of Human Anatomy
Anatomy of the Pericardium: Why Hearts Are in a Sac
This video shows a dissection of a heart and explains the importance of the pericardium, the sac that surrounds the heart. They discuss the two layers of the pericardium and how they protect and anchor the heart, as well as the potential...
Catalyst University
Phrenic Nerve | Functions, Course, & Impact of C3-C5 SCIs
In this video, we explore the functions and course of both the L and R Phrenic nerves along with the effects on the diaphragm for spinal cord injuries involving C3, C4, and C5 nerve roots.
Kenhub
Cardiac muscle
Cardiac muscle tissue is found in the myocardium and is responsible for the contraction of the heart.
Khan Academy
Khan Academy: What Is Myocarditis and Pericarditis?
A video [6:46] that explains what Myocarditis and Pericarditis are and how they affect the heart.