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Anatomy and Physiology Course Lesson 3.3: Axial skeleton and protected spaces.

Austin Mandeville MHS, NRP
Oct 7, 2026
150–210 min including topic learning materials
Anatomy and Physiology Course Lesson 3.3: Axial skeleton and protected spaces.
Image credit: Pixabay: Monoar_CGI_Artist

PHA LEARNING PRIMER · 03.3

Locate axial structures and their relationships

Identify the assigned skull, spine, and thoracic landmarks. Connect these structures with the spaces and organs they protect.

Focus for this topic

  • Identify the assigned skull, spine, and thoracic landmarks.
  • Connect these structures with the spaces and organs they protect.

Recommended study time: 150–210 minutes. Objective: AP-M03-03.

Your study sequence

Use Next to continue through the PHA Learning Guide and textbook readings in this topic. Work through the pages in order and connect the examples to the topic’s learning goals. Planning estimates are flexible; work at your own pace.

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