For Each Historical Identification Question, Define the Term and Briefly

question 38

Essay

For each historical identification question, define the term and briefly describe its historical significance.
-Saint Francis of Assisi

---

Definitions:

Superior Phrenic Artery

Blood vessels that supply blood to the superior aspect of the diaphragm, originating from the thoracic aorta or other nearby arteries.

Diaphragm

A dome-shaped muscle at the base of the lungs that plays a crucial role in breathing by contracting and relaxing to change thoracic volume.

Internal Jugular Vein

The internal jugular vein is a major vein in the neck that returns deoxygenated blood from the head to the heart.

Cranial Vault

Eight skull bones that surround and protect the brain; braincase.