Printable anatomy worksheets: free labeling diagrams with answer keys

An anatomy labeling worksheet is a diagram with the names taken off. Each structure keeps its pointer line, a number replaces its name, and you write the name on the matching numbered line. Covering the labels on a diagram and testing yourself, and labelling blank diagrams again and again, are both on LSU Health's list of ways to study anatomy actively. (LSU Health New Orleans School of Medicine: How to Study Anatomy in Your First Year of Medical School.)

Naming a structure from memory is a form of practice testing. A review of ten common study techniques rated practice testing and distributed practice (spreading study out over time) as the two with high utility, because they help learners of different ages and abilities. Rereading and highlighting were rated low. (Dunlosky J et al. Improving Students' Learning With Effective Learning Techniques. Psychol Sci Public Interest. 2013.)

The effect has been measured in anatomy. When 21 future medical and dental students answered nervous system questions three times, in a slightly different form each time, they scored almost 9% higher on the second quiz, with nothing in between but seeing the correct answers. On the third quiz, a week later, their scores were 29% higher than on the first. More of this evidence is on the anatomy quiz page. (Logan JM, Thompson AJ, Marshak DW. Testing to enhance retention in human anatomy. Anat Sci Educ. 2011.)

Treat each sheet as a test. Learn the body system first, label the sheet from memory, check your answers, and come back to the parts you missed after a gap of a few days. The steps below follow the study advice of LSU Health's medical school and the University of North Carolina's Learning Center. (LSU Health New Orleans School of Medicine: How to Study Anatomy in Your First Year of Medical School.)

1. Study first: Read the guide for the body system and turn the 3D human model to see where the main organs, bones and muscles lie. Each worksheet below links to its guide. (LSU Health New Orleans School of Medicine: How to Study Anatomy in Your First Year of Medical School.)
2. Label from memory: Close your notes and write a name on every numbered line you can. Leave a blank rather than looking it up. (The Learning Center, University of North Carolina at Chapel Hill: Studying 101: Study Smarter Not Harder.)
3. Check and mark: Open the answer key, mark each answer right or wrong, and read about the parts you missed on the guide.
4. Relabel the misses: Print a fresh copy and label it again after about 1 day, 3 days and 1 week, the growing gaps LSU Health suggests, instead of cramming in one sitting. (LSU Health New Orleans School of Medicine: How to Study Anatomy in Your First Year of Medical School.)
5. Say it or draw it: Explain each structure out loud as you label it, or sketch the diagram from memory on a blank page. Drawing from memory and explaining while drawing are both on LSU Health's list. (LSU Health New Orleans School of Medicine: How to Study Anatomy in Your First Year of Medical School.)

For quick self-tests on bones, muscles, organs and the heart, try the anatomy quiz.

Seven worksheets, with 15 to 26 numbered structures each. Print with answer key gives two pages: the diagram with blank numbered lines, then the key. Download diagram saves the sheet as an SVG file, which stays sharp at any print size. The answer key under each sheet stays closed until you open it.

Human skeleton worksheet: label the bones

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Answer key (22 labels)

1. Skull (cranium)
2. Mandible (lower jaw)
3. Clavicle (collarbone)
4. Scapula (acromion)
5. Ribs
6. Humerus
7. Radius
8. Carpals (wrist)
9. Metacarpals (palm)
10. Phalanges (fingers)
11. Patella (kneecap)
12. Tarsals
13. Metatarsals
14. Phalanges (toes)
15. Cervical vertebrae
16. Sternum (breastbone)
17. Lumbar vertebrae
18. Hip bone (coxal bone)
19. Femur (thigh bone)
20. Fibula
21. Ulna
22. Tibia (shin bone)

Human muscles worksheet: label the front muscles

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Answer key (25 labels)

1. Frontalis (occipitofrontalis)
2. Temporalis
3. Orbicularis oculi
4. Masseter
5. Sternocleidomastoid
6. Trapezius
7. Deltoid
8. Biceps brachii
9. Brachialis
10. Brachioradialis
11. Forearm flexors
12. Vastus lateralis
13. Tibialis anterior
14. Fibularis (peroneus) longus
15. Extensor retinaculum
16. Pectoralis major
17. Serratus anterior
18. Rectus abdominis
19. External oblique
20. Sartorius
21. Tensor fasciae latae
22. Rectus femoris
23. Vastus medialis
24. Gracilis
25. Adductor longus

Heart worksheet: label the chambers and valves

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Answer key (26 labels)

1. Superior vena cava
2. Right atrium
3. Fossa ovalis (on the interatrial septum)
4. Opening of the inferior vena cava
5. Coronary sinus opening
6. Tricuspid valve
7. Chordae tendineae
8. Anterior papillary muscle
9. Moderator band
10. Right ventricle
11. Trabeculae carneae
12. Left pulmonary veins
13. Left atrium
14. Mitral (bicuspid) valve
15. Thick left ventricle wall
16. Papillary muscle
17. Left ventricle
18. Interventricular septum
19. Apex
20. Pulmonary valve
21. Fibrous ring of the cardiac skeleton
22. Left coronary artery
23. Mitral valve
24. Right coronary artery
25. Aortic valve
26. Tricuspid valve

Brain worksheet: label the lobes and gyri

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Answer key (24 labels)

1. Frontal lobe
2. Parietal lobe
3. Temporal lobe
4. Occipital lobe
5. Precentral gyrus
6. Central sulcus
7. Postcentral gyrus
8. Superior frontal gyrus
9. Middle frontal gyrus
10. Inferior frontal gyrus
11. Broca's area
12. Lateral sulcus
13. Superior temporal gyrus
14. Middle temporal gyrus
15. Inferior temporal gyrus
16. Pons
17. Medulla oblongata
18. Superior parietal lobule
19. Parieto-occipital sulcus
20. Supramarginal gyrus
21. Angular gyrus
22. Wernicke's area
23. Preoccipital notch
24. Cerebellum

Digestive system worksheet: label the organs

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Answer key (24 labels)

1. Mouth (oral cavity)
2. Tongue
3. Sublingual gland
4. Submandibular gland
5. Liver
6. Gallbladder
7. Duodenum
8. Ascending colon
9. Caecum (cecum)
10. Appendix
11. Anal canal and anus
12. Parotid gland
13. Pharynx
14. Oesophagus (esophagus)
15. Diaphragm
16. Stomach
17. Pancreas
18. Descending colon
19. Sigmoid colon
20. Rectum
21. Ileocaecal junction
22. Jejunum
23. Ileum
24. Transverse colon

Eye worksheet: label the parts of the eyeball

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Answer key (15 labels)

1. Ciliary body
2. Suspensory ligament (zonular fibres)
3. Iris
4. Cornea
5. Pupil
6. Lens
7. Anterior chamber (aqueous humour)
8. Posterior chamber
9. Sclera
10. Choroid
11. Retina
12. Fovea (centre of the macula)
13. Optic disc (blind spot)
14. Optic nerve
15. Vitreous body

Ear worksheet: label the outer, middle and inner ear

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Answer key (18 labels)

1. Auricle (pinna)
2. Cartilage of the auricle
3. Lobule
4. External acoustic meatus (ear canal)
5. Tympanic membrane (eardrum)
6. Malleus
7. Incus
8. Stapes
9. Tympanic cavity (the middle ear cavity)
10. Eustachian (auditory) tube
11. Temporal bone
12. Semicircular canals
13. Vestibule
14. Cochlea
15. Vestibulocochlear nerve (CN VIII)
16. Outer (external) ear
17. Middle ear
18. Inner (internal) ear

Six of the worksheets are unlabeled copies of a diagram on the guide listed in the table, so that guide names and explains every numbered structure. The eye sheet was drawn for this page; the eye anatomy guide explains each of its parts, and the answer key under the sheet names them.

The views match the guides. Right and left always mean the subject's own right and left, so in a front (anterior) view the subject's right is on your left, as if the person were facing you. The eye sheet is a horizontal (transverse) section, a cut that divides a body part into upper and lower portions. (OpenStax Anatomy and Physiology 2e, 1.6 Anatomical Terminology.)

Yes, with one difference. In a University of Ottawa trial, students were asked to colour and label an anatomy colouring page. These sheets are shaded diagrams rather than outline drawings, so print one in black and white: the shapes come out in shades of grey, and you colour over each numbered structure and write its name on the matching line in the same colour. Name each part before you colour it, so the colouring does not replace the recall. (Fotsing S et al. A pilot randomized controlled trial of anatomy coloring books for first-year medical students. University of Ottawa Journal of Medicine. 2025.)

The evidence for colouring is small. In that pilot randomised trial, 17 first-year medical students spent 20 minutes on the anatomy of the mediastinum, either colouring and labelling a colouring page or reading an annotated atlas diagram. Retention test scores did not differ significantly between the groups, but the colouring group reported significantly lower anxiety afterwards, and 78% of them agreed that colouring helped them consolidate what they learned. The authors warn that the sample was small. (Fotsing S et al. A pilot randomized controlled trial of anatomy coloring books for first-year medical students. University of Ottawa Journal of Medicine. 2025.)

A second study followed 70 second-term medical students during a circulatory and respiratory system course. The 40% who preferred colouring-based methods scored significantly higher on the exams, but the students were grouped by the method they preferred, not at random, so the study cannot show that colouring caused the difference. (Uğuz Gençer C, Tetiker H. Contribution of coloring activity to learning in anatomy education. Medical Records. 2026 (Türk Medline record).)

Use the answer key as the back of your cards. On the front, write the worksheet name and the number (or sketch the structure); on the back, write its name and one fact from the guide, such as what it does. LSU Health lists flashcards, including apps such as Anki, alongside practice questions and daily quizzing as ways to study actively. (LSU Health New Orleans School of Medicine: How to Study Anatomy in Your First Year of Medical School.)

Review the cards little and often. The University of North Carolina's Learning Center suggests making flashcards for material you have to memorise and reviewing them periodically through the day, and working a short time on each subject every day. (The Learning Center, University of North Carolina at Chapel Hill: Studying 101: Study Smarter Not Harder.)

Flashcard apps such as Anki use spaced repetition to schedule the reviews for you. At one US medical school, the 78 first-year students who used Anki scored significantly higher on three course exams and the Comprehensive Basic Science Exam than the 52 who did not. A cohort study like this shows an association, not proof that the app caused the higher scores. (Gilbert MM et al. A cohort study assessing the impact of Anki as a spaced repetition tool on academic performance in medical school. Med Sci Educ. 2023.)

For how often to review and more on self-testing, see the anatomy quiz page.

Yes, for learning. You can print the worksheets to study from, and link to this page as often as you like. The terms of use let you use the site as a learning resource but do not give a blanket licence to republish its diagrams, so ask through the contact page before you post the sheets on another website or put them in something you sell.

The diagrams are EasyAnatomyLab's own schematic drawings, not scans from a textbook, and they are not to scale. Please keep the line at the bottom of each sheet, which points back to this page and its answer keys.

Every label on the sheets was checked against cited textbook and anatomy sources before the labelled diagram went on its guide, and again for this page. Some of the details that are easy to get wrong, and how the sheets show them:

• Skeleton, forearm: the radius is the forearm bone on the thumb (lateral) side, and the ulna is the medial bone of the forearm. (OpenStax Anatomy and Physiology 2e, 8.2 Bones of the Upper Limb.)
• Skeleton, leg: the tibia (shin bone) is the larger, medial bone of the leg, and the thinner fibula lies on the outside. (OpenStax Anatomy and Physiology 2e, 8.4 Bones of the Lower Limb.)
• Heart: the superior and inferior venae cavae and the coronary sinus all open into the right atrium, and the moderator band crosses the right ventricle. (OpenStax Anatomy and Physiology 2e, 19.1 Heart Anatomy.)
• Brain: the central sulcus separates the frontal and parietal lobes, and the lateral sulcus separates the temporal lobe from the lobes above it. (TeachMeAnatomy: The Cerebrum.)
• Digestive system: the ascending colon runs up the right side of the abdomen and the descending colon down the left, so on a front view they appear on your left and right. (OpenStax Anatomy and Physiology 2e, 23.5 The Small and Large Intestines.)
• Eye: the sheet is a horizontal section of the right eye seen from above, so the optic disc (the blind spot) lies on the nasal side of the fovea, at the bottom of the drawing. (UTHealth Houston, Neuroscience Online: Lab 8, The Visual System.)
• Ear: the malleus is attached to the eardrum (tympanic membrane), and the stapes fits into the oval window of the inner ear. (TeachMeAnatomy: The Middle Ear.)