Because of Their Smooth Muscle Component, the Structures of the Lower

question 66

Short Answer

Because of their smooth muscle component, the structures of the lower respiratory system that can most alter airway resistance are the ________.

---

Definitions:

Sacral Hiatus

An opening or gap in the posterior part of the sacral bone of the vertebral column through which nerves and membranes can pass.

Superior Articular Facet

Superior Articular Facet pertains to the upper joint surface of a vertebra that articulates with the inferior articular facet of the vertebra directly above it, contributing to spinal stability and movement.

Median Sacral Crest

A ridge or series of bumps along the back surface of the sacrum, forming the fused spinous processes of the sacral vertebrae.

Posterior Sacral Foramina

Openings in the sacrum bone that allow nerves and blood vessels to pass through.