NU110 Exam 4 (2026–2027) – 130 Questions on Nervous System, Special Senses & Endocrine Regulation

This NU110 Exam 4 (2026–2027) review contains 130 verified exam questions and detailed answers covering the nervous system, special senses, and endocrine system regulation. The material thoroughly outlines central and peripheral nervous system divisions, neuron structure (dendrites, axons, myelin, action potentials, depolarization, repolarization), sensory and motor pathways, sympathetic vs parasympathetic responses, neurotransmitters (ACh, norepinephrine, dopamine, serotonin), and receptor classifications (pages 1–6). The guide also provides comprehensive coverage of brain anatomy (cerebrum, diencephalon, brainstem, cerebellum), cranial nerves, meninges, cerebrospinal fluid, spinal cord tracts, and autonomic responses. Special senses are detailed extensively, including eye anatomy (retina, rods, cones, accommodation, refraction), ear structures (ossicles, cochlea, semicircular canals), taste and smell pathways, tactile receptors, and sensory adaptation mechanisms (pages 7–12). In addition, the document delivers an in-depth review of endocrine physiology, including hormone regulation through negative feedback loops, pituitary gland function (anterior vs posterior lobes), ADH, oxytocin, GH, ACTH, FSH, LH, thyroid hormones (T3, T4), parathyroid hormone, adrenal hormones (epinephrine, cortisol, aldosterone), pancreatic hormones (insulin, glucagon), reproductive hormones (estrogen, progesterone, testosterone), melatonin, EPO, and calcitriol. It integrates mechanisms of hormone action, steroid vs amino acid hormone differences, portal system function, and metabolic regulation concepts, making it highly aligned with foundational nursing physiology content. This document may concern: – Students enrolled in NU110 Fundamentals of Nursing – Pre-licensure nursing students preparing for Exam 4 – Health science and pre-nursing majors reviewing A&P concepts – Students studying nervous and endocrine system physiology – Learners preparing for cumulative nursing theory examinations It is especially valuable for students using foundational textbooks such as Fundamentals of Nursing by Potter & Perry or standard Anatomy & Physiology texts covering neuroendocrine regulation and sensory systems. Keywords: NU110 exam 4 review, central nervous system CNS, peripheral nervous system PNS, sympathetic vs parasympathetic effects, action potential depolarization repolarization, neurotransmitters acetylcholine norepinephrine dopamine serotonin, cranial nerves functions, cerebrum brainstem cerebellum anatomy, special senses eye ear taste smell, rods and cones retina, semicircular canals equilibrium, sensory adaptation definition, endocrine system hormones, pituitary gland anterior posterior lobe, ADH oxytocin function, thyroid hormones T3 T4 metabolism, insulin vs glucagon regulation, cortisol aldosterone adrenal cortex, parathyroid hormone calcium regulation, negative feedback loop physiology, steroid vs protein hormones, diabetes mellitus insulin deficiency