while the superior vena cava returns the blood above the diaphragm to the heart. Conditions involving the IVC usually involve an obstruction (blockage) and may be referred to as inferior vena cava ...

It further reduces friction during breathing Large surface area - many alveoli are ... during real breathing to change thorax volume The diaphragm is really dome-shaped and flattens during ...

The left and right phrenic nerves send signals to control the diaphragm, which receives its blood supply primarily from the inferior phrenic arteries. The diaphragm is primarily composed of muscle and ...

while the superior vena cava returns the blood above the diaphragm to the heart. Conditions involving the IVC usually involve an obstruction (blockage) and may be referred to as inferior vena cava ...

1 Department of Neurology, State University of Campinas, Campinas, Brazil 2 Department of Neuroscience, Hospital Sirio Libanes, São Paulo, Brazil Introduction: This study explores the anatomy and ...

The thoracic cavity is separated from the abdominal cavity by the diaphragm, a broad structure ... just under the inferior rib. With little bleeding, the wound was almost unnoticeable.

Shorter slow wave sleep and rapid eye movement sleep were associated with decreased volume in Alzheimer disease-vulnerable brain regions.

A long-lost slab of Earth’s crust may be pulling away the bottom of the oldest part of North America, scientists say ...

Beneath the surface of the Southern Ocean, vast volumes of cold, dense water plunge off the Antarctic continental shelf, cascading down underwater cliffs to the ocean floor thousands of meters below.

While CO₂ doesn’t transmit viruses itself, it acts as a proxy for indoor crowding and poor ventilation. The more people in a ...

Except when we fly, or see rockets and missiles, we mostly ignore the air we breathe. But when the air becomes poisoned with ...