easyhumanatomy

Gray and white rami communicans   Gray and white rami communicans are related with sympathetic system. Both gray and white rami commun...

Dilator pupillae They are involuntary   muscle fibers of the iris , which running radially from papillary margin to periphery . It ...

Sphincter pupillae Pupil is the central small aperture situated within the iris of eye. The size of it control by two muscles one is sph...

Erb’s paralysis : it is also known as upper trunk plexus injury. Cause of injury :   Upper trunk is ruptured due to forceful widening ...

Moderator band: (septomarginal trabeculum) It is the unique features of the right ventricle , a thick muscular ridge extending from the...

left ventricle :  The wall of the left ventricle is thicker than the atrium and also  it is thicker than the right ventricle. It contai...

Right ventricle of the heart: The heart consists of four chambers: ·         Right and left atrium both are separated by interatrial se...