Actual Exam
Complete 180+ Practice Questions with Verified Answers &
Detailed Rationales
INTRODUCTION
The American Board of Surgical Assistants (ABSA) certification
exam is designed to validate the knowledge, skills, and abilities
of surgical assistants across various healthcare settings. The
exam covers critical areas including pre-operative, intra-
operative, and post-operative patient care, surgical procedures,
sterile technique, and professional ethics.
SECTION 1: ANATOMY & PHYSIOLOGY
1. The outermost layer of the skin, composed of stratified
squamous epithelium, is called the:
A) Dermis
B) Hypodermis
C) Epidermis
D) Fascia
Correct Answer: C
Rationale: The epidermis is the outermost layer of the skin,
providing a protective barrier and consisting of stratified
squamous epithelium. The dermis contains connective tissue,
,blood vessels, and nerve endings. The hypodermis is
subcutaneous tissue. Fascia is fibrous tissue.
2. Which structure serves as the primary passageway for air
entering and leaving the lungs during breathing?
A) Esophagus
B) Trachea
C) Pharynx
D) Bronchus
Correct Answer: B
Rationale: The trachea is the primary passageway for air
entering and leaving the lungs. It connects the larynx to the
bronchi. The esophagus is the passageway for food, the
pharynx is a shared passageway for both air and food, and the
bronchus is an airway that branches from the trachea.
3. Which part of the brain is responsible for controlling
involuntary functions such as heart rate, breathing, and blood
pressure?
A) Cerebellum
B) Brainstem
C) Cerebrum
D) Thalamus
Correct Answer: B
,Rationale: The brainstem controls autonomic functions
including heart rate, breathing, and blood pressure. The
cerebellum coordinates motor movement. The cerebrum is
responsible for higher cognitive functions. The thalamus relays
sensory information.
4. What is the primary function of red blood cells?
A) Clotting
B) Fighting infection
C) Transporting oxygen
D) Transporting hormones
Correct Answer: C
Rationale: The primary function of red blood cells
(erythrocytes) is to transport oxygen using the protein
hemoglobin. White blood cells fight infection, platelets are
involved in clotting, and the endocrine system transports
hormones.
5. The flow of blood from the heart to the lungs and back to
the heart is known as:
A) Systemic circulation
B) Pulmonary circulation
C) Coronary circulation
D) Hepatic circulation
, Correct Answer: B
Rationale: Pulmonary circulation is the flow of blood from the
heart to the lungs and back to the heart. Systemic circulation is
the flow of blood to the rest of the body. Coronary circulation
supplies the heart itself. Hepatic circulation supplies the liver.
6. Which structure in the kidney is responsible for filtering
blood?
A) Ureter
B) Nephron
C) Renal pelvis
D) Calyx
Correct Answer: B
Rationale: The nephron is the functional unit of the kidney
responsible for filtering blood. The ureter transports urine, the
renal pelvis collects urine, and the calyx is a chamber in the
kidney.
7. Which component of blood is primarily responsible for
clotting and stopping bleeding?
A) Erythrocytes
B) Leukocytes
C) Platelets
D) Plasma