BIOS 255 – Exam 3 Review (50+ Questions) – Immunity, Respiration, Gas Laws, Lymphatic System – Chamberlain University

This document is an advanced review resource for BIOS 255: Human Anatomy and Physiology III at Chamberlain University, designed specifically for Exam 3 preparation during the 2025/2026 academic year. It contains over 50 well-structured questions and answers, all verified as 100% correct, covering core concepts in immunology, pulmonary physiology, gas exchange, and lymphatic system function. Both multiple-choice and essay-style questions are included, offering a comprehensive overview ideal for final exam and quiz revision. Key systems and topics include: Immune system: humoral and cellular immunity, antibody classes (IgG, IgA, IgM, IgE, IgD), CD4 and CD8 cells, antigen presentation, autoimmune responses, primary vs. secondary immune responses, and interferon function Lymphatic system: primary and secondary lymphatic organs, lymph vs. interstitial fluid, MALT, and complement system Respiratory system: lung compliance, pulmonary ventilation, gas transport, partial pressure differences, respiratory distress syndrome, pleural anatomy, and respiratory volumes Gas laws and oxygen transport: Boyle’s law, Dalton’s law, oxygen dissociation curve shifts (left vs. right), and variables affecting hemoglobin’s oxygen affinity in different tissues (e.g., muscles vs. lungs) Applied understanding: Includes clinical reasoning scenarios such as immune responses after flu vaccination and respiratory physiology in neonates This review is highly suitable for: Students enrolled in BIOS 255 or upper-level A&P courses Pre-nursing and pre-med students preparing for course exams and comprehensive finals Allied health students needing in-depth understanding of immune and respiratory physiology Learners who benefit from structured Q&A study formats for reinforcement and recall This well-rounded study tool bridges memorization and conceptual understanding, aligning closely with course objectives and real exam expectations. Keywords: epitopes, B cells, T cells, interferons, autoimmune diseases, antibody classes, IgG, IgA, IgM, IgE, IgD, CD4, CD8, lymphatic organs, antigen presenting cells, inflammation, respiratory distress syndrome, pulmonary compliance, gas exchange, oxygen dissociation curve, Boyle’s law, Dalton’s law, internal respiration, external respiration, pleura, lung volumes, immune response