HESI A2 Practice Test Questions 2026 (200+ Q&A) – HESI A2 – Nursing Admissions – Anatomy, Physiology & System Review

This document contains over 200 comprehensive HESI A2 practice test questions with complete answers and illustrations designed to simulate the structure and difficulty of the official nursing entrance examination . The material is organized in a multiple-choice question-and-answer format and covers high-yield anatomy and physiology concepts frequently tested on the HESI A2 exam, including digestive, endocrine, nervous, musculoskeletal, respiratory, cardiovascular, urinary, and reproductive systems. The content thoroughly reviews core foundational topics such as homeostasis definitions, endocrine communication through hormones, erythropoiesis and hemopoiesis, keratin structure, muscle contraction via sliding filaments and ATP use, reflex pathways limited to the spinal cord, and medulla oblongata control of vital functions. It includes applied anatomy questions on the axial skeleton (28 skull bones, vertebral counts: 7 cervical, 12 thoracic, 5 lumbar), sarcomere structure within myofibrils, bone anatomy (epiphysis), and muscle location identification (pectoralis major, soleus, latissimus dorsi). Respiratory and cardiovascular physiology topics include external respiration in alveoli, EKG deflections representing electrical activity, inhalation requiring diaphragm contraction, and bronchi to bronchiole airflow progression. Reproductive and endocrine regulation are addressed through ovulation timing (day 14 in a 30-day cycle), LH stimulation of testosterone production, progesterone and estrogen effects on the endometrium, tropic hormones (FSH, TSH, LH), and cortisol’s physiological roles. Digestive and renal concepts include mastication increasing surface area, alimentary canal structure, kidney waste filtration analogy, urine production (1,500–2,000 mL/day), liver enzyme detoxification, pancreatic glucose regulation, and villi structure in the small intestine. Immunologic and hematologic topics include white blood cells in phagocytosis and vitamin K production in the intestinal tract. The document also integrates terminology and directional movement concepts (anterior anatomical position, proximal vs distal movement), skeletal classification by shape, smooth visceral muscle in organ walls, metacarpal bone identification, and distinctions between axial and appendicular skeleton components. Nonrespiratory air movements such as yawning are clarified, along with spinal nerve count (31 pairs) and the foramen magnum location at the base of the skull. This resource is particularly relevant for pre-nursing students, ADN and BSN applicants, accelerated nursing candidates, allied health program applicants, and individuals preparing for the Anatomy and Physiology section of the HESI A2 entrance examination. It is ideal for structured practice testing, remediation study sessions, timed exam simulation, and reinforcement of clinically relevant physiological principles prior to nursing school admission testing. Due to its exam-style structure, broad system coverage, applied clinical reasoning focus, and alignment with HESI A2 blueprint objectives, this document serves as a comprehensive practice test bank and targeted review guide for nursing entrance exam success. Keywords: HESI A2 practice test 2026, HESI anatomy and physiology questions, homeostasis definition exam question, endocrine system hormone communication, erythropoiesis red blood cell formation, sliding filament theory ATP muscle contraction, axial skeleton 28 skull bones, spinal nerves 31 pairs, ovulation day 14 30 day cycle, progesterone estrogen endometrium function, cortisol function blood sugar inflammation, EKG electrical activity deflection, diaphragm contraction inhalation, alimentary canal organs list, kidney waste treatment analogy, urine output 1500 to 2000 ml per day, smooth visceral muscle stomach intestines, proximal vs distal movement definition, metacarpal upper limb bone, villi small intestine absorption