Human Anatomy I

The route

Lessons are in the order that makes each one easier than the last. Each unit ends with a short quiz.

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   Unit 1

   Introduction to Human Anatomy

   What anatomy is, how its branches divide the work, and how atoms build up, level by level, into a living person.
   1. Meaning and Branches of AnatomyFree Before you can care for a body, you need to know its map. 10 min
   3. Levels of Structural Organisation From a single atom to a whole person, in six steps. 10 min
   4. Organ Systems of the Human Body Eleven teams, one body, and not one of them can work alone. 11 min
   5. Unit 1 quiz5 questions on this unit 6 min
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   Unit 2 Full plan

   Anatomical Terminology and the Body Plan

   One standard pose, a set of direction words, imaginary slices and named spaces, so every description of the body means the same thing to everyone.
   1. Anatomical Position and Directional Terms One agreed starting pose, so that "above" and "below" mean the same thing to everyone. 11 min
   2. Body Planes and Sections Imaginary flat cuts through the body that let you look inside. 9 min
   3. Body Regions and Abdominal Divisions In anatomy your "leg" stops at the knee, and the abdomen has nine addresses. 11 min
   4. Body Cavities and Serous Membranes The body's protected rooms, and the slippery linings that let organs move without rubbing raw. 12 min
   5. Unit 2 quiz6 questions on this unit 8 min
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   Unit 3 Full plan

   The Cell and the Primary Tissues

   Trillions of cells, four kinds of tissue, and the membranes that line every surface, inside and out.
   1. Structure of the Cell and Its Organelles A city in a space smaller than the full stop at the end of this sentence. 12 min
   2. The Nucleus and Cell Division How one fertilised egg becomes trillions of cells, each carrying the same instructions. 11 min
   3. Epithelial Tissue and Glands The body's tiles, covering every surface and lining every tube. 11 min
   4. Connective Tissue The body's most abundant tissue, as hard as bone or as liquid as blood. 11 min
   5. Muscle Tissue, Nervous Tissue and Body Membranes The tissues that move you and the tissue that tells them when, plus the sheets that line every surface. 12 min
   6. Unit 3 quiz7 questions on this unit 9 min
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   Unit 4 Full plan

   The Integumentary System

   The body's largest organ, and the layers, glands and hairs that keep you waterproof, cool and protected.
   1. Structure of the Skin Your largest organ is less than half a centimetre thick, and every layer has a job. 12 min
   2. Accessory Structures of the Skin Hair, nails and glands all grow down from the epidermis, and each one earns its place. 10 min
   3. Functions of the Skin, Skin Colour and Burns A raincoat, a thermostat, a sense organ and a vitamin factory, all in one. 12 min
   4. Unit 4 quiz5 questions on this unit 6 min
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   Unit 5 Full plan

   The Skeletal System

   Living bone that grows, repairs and remodels itself, and the 206 bones of the adult skeleton.
   1. Functions of the Skeleton and Bone Tissue Bone is not dry chalk; it is living tissue that is constantly torn down and rebuilt. 11 min
   2. Classification and Structure of Bones Long, short, flat, irregular or sesamoid: a bone's shape tells you its job. 9 min
   3. Ossification, Bone Growth and Fracture Repair How cartilage and membrane turn into bone, why you stop growing taller, and how a broken bone mends. 11 min
   4. The Axial Skeleton Eighty bones down the middle of you, guarding the brain, the spinal cord and the heart. 13 min
   5. The Appendicular Skeleton Girdles and limbs, 126 bones that let you reach, grip, walk and run. 12 min
   6. Unit 5 quiz7 questions on this unit 9 min
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   Unit 6 Full plan

   Articulations and the Muscular System

   Where bones meet, how they move, and the muscles that pull on them.
   1. Classification of Joints Some joints never move, some barely move, and some swing freely; anatomists sort them two ways. 10 min
   2. Synovial Joints and Their Movements The freely movable joints, the six shapes they come in, and the exact words for every movement. 13 min
   3. Structure of Skeletal Muscle A muscle is built like a cable of cables, wrapped at every level in connective tissue. 11 min
   4. Naming, Actions and Major Skeletal Muscles Muscle names are clues; read them right and they tell you where a muscle is and what it does. 13 min
   5. Unit 6 quiz7 questions on this unit 9 min

Practise and remember