Study Guide: Blood, Lymphatic, and Immune Systems (Medical Terminology, Chapter 6)

Blood, Lymphatic, and Immune Systems

Overview

This study guide covers essential medical terminology related to the blood, lymphatic, and immune systems. It focuses on word parts, terminology, pathology, procedures, pharmacology, and common abbreviations. Understanding these terms is crucial for building and interpreting medical vocabulary in clinical contexts.

Section I: Blood System

Word Parts (Page 186)

• Root words refer to the main part of a medical term, often indicating a body part or system (e.g., hem/o for blood).

• Prefixes modify the meaning of the root (e.g., hyper- means excessive).

• Suffixes indicate procedures, conditions, or diseases (e.g., -emia means blood condition).

• Flash cards are recommended for memorizing these parts.

Major Components of Blood (Pages 188-190)

• Plasma: The liquid portion of blood, containing water, proteins, and other substances.

• Erythrocytes (RBCs): Red blood cells responsible for carrying oxygen.

• Leukocytes (WBCs): White blood cells involved in immune defense.

• Platelets (Thrombocytes): Cell fragments that help in blood clotting.

Terminology and Word Building (Pages 191-192)

• Medical terms are often constructed from word parts: prefix + root + suffix.

• Example: Hematoma (hemat/o = blood, -oma = mass or tumor) means "blood mass."

• Understanding word parts helps decode unfamiliar terms.

Pathology Terms (Pages 193-197)

• Pathology terms describe diseases and conditions of the blood system.

• Terms are often tested if they can be broken down into word parts.

• Example: Hematoma – a localized collection of blood outside blood vessels.

Procedures and Pharmacology (Pages 197-200)

• Minimally tested, but know key terms built from word parts.

• Thrombolytic (thromb/o = clot, -lytic = to destroy) means "able to dissolve existing blood clots."

Common Abbreviations (Page 200)

Abbreviation	Meaning
CBC	Complete Blood Count
Hgb	Hemoglobin
RBC	Red Blood Cell
WBC	White Blood Cell

Section II: Lymphatic and Immune Systems

Word Parts (Page 202)

• Key word parts for the lymphatic system include roots like lymph/o (lymph), splen/o (spleen), tonsill/o (tonsil), and thym/o (thymus).

• Prefixes and suffixes modify meaning (e.g., -megaly = enlargement).

Major Organs of the Lymphatic System (Pages 204-209)

• Lymph Vessels: Transport lymph fluid throughout the body.

• Lymph Nodes: Filter lymph and house immune cells.

• Tonsils: Lymphatic tissue in the throat that helps protect against inhaled pathogens.

• Spleen: Filters blood, recycles old red blood cells, and helps fight infection.

• Thymus: Site of T-cell maturation, important for immune function.

Terminology and Word Building (Page 210)

• Terms are constructed from word parts to describe conditions, procedures, and anatomy.

• Example: Splenomegaly (splen/o = spleen, -megaly = enlargement) means "enlarged spleen."

Pathology Terms (Pages 211-215)

• Pathology terms describe diseases and conditions of the lymphatic and immune systems.

• Terms are tested if they can be broken down into word parts.

• Example: Splenomegaly – abnormal enlargement of the spleen.

Procedures and Pharmacology (Pages 216-218)

• Minimally tested, but know key terms built from word parts.

• Tonsillectomy (tonsill/o = tonsil, -ectomy = surgical removal) means "surgical removal of the tonsils."

Practice and Review

• Use "Practice As You Go" exercises and "Chapter Review" in your textbook for additional practice.

• Answers are available in the back of the textbook.

Summary Table: Key Terms and Examples

Term	Word Parts	Meaning
Hematoma	hemat/o + -oma	Blood mass
Thrombolytic	thromb/o + -lytic	Able to dissolve blood clots
Splenomegaly	splen/o + -megaly	Enlarged spleen
Tonsillectomy	tonsill/o + -ectomy	Surgical removal of tonsils

Study Tips

• Focus on learning word parts and how they combine to form medical terms.

• Practice spelling and definitions, especially from the "Word Building Practice" section.

• Familiarize yourself with common abbreviations and their meanings.

• Review pathology, procedures, and pharmacology terms that are constructed from word parts.

Additional info: Academic context and examples have been added to clarify the structure and meaning of medical terms, as well as to provide a self-contained study guide for exam preparation.