Anatomy & Physiology - Domain Overview
Anatomy & Physiology (BSAP) accounts for approximately 12.0% of the CST exam (18 of 150 scored items), the largest of the three Basic Science domains. It covers surgical anatomy by body system, tissue types, physiologic responses to surgery, hemodynamics, wound healing processes, and anatomical landmarks used to guide surgical approaches.
What This Domain Covers
- Tissue types (epithelial, connective, muscle, nervous) and their surgical relevance.
- The three phases of wound healing - inflammatory, proliferative, and maturation.
- Hemodynamics and the coagulation cascade underlying surgical hemostasis.
- Surgical anatomy organized by body system, connected directly to common procedures.
- Anatomical landmarks used for incision placement and surgical approach planning.
- The body's physiologic stress response to surgical trauma.
Why BSAP Matters in Practice
Anatomy knowledge directly informs instrument selection, incision planning, and recognition of potential complications during a case. This domain is tested at a clinical application level rather than pure textbook recall, which is why candidates who studied anatomy only academically sometimes underperform relative to their expectations.
Frequently Asked Questions
What percentage of the CST exam is BSAP?
Anatomy & Physiology makes up approximately 12.0% of the exam, or 18 of the 150 scored questions.
Is BSAP tested the same way as an anatomy class exam?
No. BSAP questions are typically embedded within clinical or surgical scenarios rather than asked as isolated anatomical fact recall.
What is the best way to study anatomical landmarks?
Pair each landmark with its associated vertebral level and the surgical procedure or approach where it is clinically relevant.
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