HESI A2 Anatomy & Physiology | 2026 Verified Q&A | 200+ Definitions | Hormones, Tissues, Organs, Bones, Brain

This document provides a well-structured, expert-verified study guide with over 200 concise questions and answers tailored for the 2026 HESI A2 Anatomy and Physiology entrance exam. Compiled in a glossary-style format, it focuses on high-yield terms and processes across all major body systems. It is ideal for rapid content review, foundational learning, and reinforcement of test-critical material. Topics covered include: Anatomical directions and planes: medial/lateral, proximal/distal, sagittal, transverse Tissue types and functions: epithelial, connective, nerve, and muscle tissue Skin layers and glands: stratum corneum, dermis, eccrine/apocrine/sebaceous glands, melanin, keratin Skeletal system: bone types, osteoblasts, cranial and facial bones, vertebral column, axial and appendicular skeleton Muscle function: sarcomere, actin-myosin interaction, prime mover, antagonist, synergist, flexors/extensors Nervous system: neuron structure, PNS vs CNS, cerebrum, cerebellum, medulla oblongata, spinal reflex arc Endocrine system: pituitary gland, steroid vs. nonsteroid hormones, oxytocin, ADH, tropic hormones (FSH, LH, GH) Cardiovascular and blood systems: erythrocytes, leukocytes, platelets, heart chambers and valves, cardiac cycle Respiratory system: inhalation/exhalation mechanics, alveoli, diaphragm, internal/external respiration Digestive system: alimentary canal, chyme, small/large intestine, nutrient absorption, intestinal flora Urinary system: nephron, glomerulus, ureters, bladder, urethra Reproductive system: male and female hormone cycles, gamete production, FSH/LH regulation, fertilization pathway Each answer is clearly marked and includes simplified explanations that align closely with how HESI exams phrase content. This format enhances memorization while reinforcing essential clinical vocabulary and test logic. Best for: HESI A2 exam takers (2026 edition) Nursing, LPN/ADN, BSN applicants Pre-health, allied health, and medical assistant program students Students seeking rapid vocabulary mastery or foundational concept reinforcement Keywords: HESI A2 2026, anatomy and physiology, anatomical position, epithelial tissue, connective tissue, hormones, pituitary gland, bone types, sarcomere, actin myosin, nervous system, cerebellum, endocrine system, alveoli, nephron, cardiac cycle, mitosis, meiosis, reproductive system, verified Q&A, A&P entrance exam