University of Maryland Global Campus

BIOL 164: Introduction to Human Anatomy and Physiology

A study guide to UMGC's introduction to human anatomy and physiology, from basic physics and chemistry to cells, tissues and organ systems.

Updated October 2026 · 5 min read

BIOL 164 Introduction to Human Anatomy and Physiology is a 3-credit course at the University of Maryland Global Campus.

UMGC describes it as an introduction to the anatomy and physiology of the human organism. Topics include the basic concepts of physics and chemistry needed to understand biological functions, and the structure and function of cells, tissues and the major organ systems of the body.

UMGC lists BIOL 101, BIOL 103 or BIOL 160 as the prerequisite, and students may receive credit for only one of BIOL 164 or GNSC 161. Students find A&P demanding because of its volume of terminology and because physiology asks you to explain processes, such as how a nerve signal travels or how the kidneys regulate fluid, not just name parts.

Course at a Glance

ItemDetails
UniversityUniversity of Maryland Global Campus (UMGC)
Course codeBIOL 164
Credits3
PrerequisiteBIOL 101, BIOL 103 or BIOL 160
Credit ruleCredit for only one of BIOL 164 or GNSC 161
Typical workQuizzes, exams, structure-function explanations, short papers

What BIOL 164 Covers

TopicIn plain language
Physics and chemistry basicsAtoms, bonds, pH, diffusion and pressure, as they apply to the body
CellsCell structures and how cells carry out their functions
TissuesThe four main tissue types: epithelial, connective, muscle and nervous
Major organ systemsHow systems such as the nervous, cardiovascular, respiratory and digestive systems are built and work
Structure and functionHow the form of each part suits its job

Key Concepts Explained

Why Physics and Chemistry Come First

Body functions follow physical and chemical rules. Gas exchange depends on diffusion down concentration gradients; blood flow depends on pressure differences; enzyme action depends on pH and temperature. UMGC includes these basics because physiology cannot be explained without them.

Example: In the lungs, oxygen is more concentrated in the alveoli than in the blood arriving from the body, so it diffuses into the blood; carbon dioxide is more concentrated in the blood, so it diffuses out. The alveoli's huge combined surface area and very thin walls make this diffusion fast: a clear case of structure supporting function through a physical principle.

Tissue Types

Epithelial tissue covers and lines surfaces; connective tissue supports and binds; muscle tissue contracts; nervous tissue conducts signals. Organs combine several tissue types.

Organ Systems Working Together

No system works alone. During exercise, the nervous system raises heart rate, the cardiovascular system delivers more blood and the respiratory system increases ventilation.

Typical Assignments and How to Approach Them

Follow your syllabus and rubric for exact tasks. A&P courses typically include:

Assignment typeWhat it testsHow to approach it
Structure-function explanationLinking anatomy to physiologyDescribe the structure, then explain how it enables the function
Quizzes and examsTerminology and processesUse labeled diagrams and practice explaining processes in order
Short applied paperApplying knowledge to healthExplain how a disorder disrupts normal structure or function
Discussion postsUnderstanding and communicationAnswer clearly with a credible source

Cells and Tissues: The Foundation

Before organ systems, BIOL 164 covers the structure and function of cells and tissues. Key ideas include the plasma membrane and how substances cross it (diffusion, osmosis, active transport), the roles of organelles such as mitochondria and ribosomes, and how cells specialize to form tissues.

Osmosis is a classic exam topic. Red blood cells placed in a hypotonic solution (lower solute concentration than inside the cell) take in water and may burst; in a hypertonic solution they lose water and shrink; in an isotonic solution they stay the same. This is why intravenous fluids are made isotonic with blood.

Linking cell-level principles to such clinical examples shows real understanding.

Where Students Get Stuck

Study Tips for BIOL 164

How We Help with BIOL 164

Send the instructions, rubric, readings and feedback. An anatomy and physiology tutor can explain structures and processes, review your draft or prepare a custom answer to learn from. Our research paper guide covers sourcing and structure for longer papers.

GradeEssays is independent of the University of Maryland Global Campus. Our help is tutoring and reference material; you complete and submit your own work under UMGC's academic integrity policy, and we never take quizzes or exams for students. Revisions within the scope of your original request are free.

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Frequently Asked Questions

What is the prerequisite for BIOL 164?

UMGC lists BIOL 101, BIOL 103 or BIOL 160.

How many credits is BIOL 164?

UMGC lists BIOL 164 at 3 credits.

Can I take both BIOL 164 and GNSC 161?

No. UMGC states that students may receive credit for only one of them.

Why does BIOL 164 include physics and chemistry?

UMGC includes the basic physics and chemistry needed to understand biological functions, such as diffusion, pressure and pH.

How do I memorize anatomy terms?

Learn common word roots, use labeled diagrams and practice with spaced-repetition flashcards.

Can you explain an organ system for my assignment?

Yes. We explain how its structures support its functions and how it interacts with other systems.