Human Anatomy Skeleton Labeling Worksheets in 3 Levels ... - Free Printable

Let me work through this skeletal system labeling task step by step.

Looking at the diagram, I need to identify which bones are already labeled and which ones need labels added.

The diagram shows a human skeleton with various bone names in boxes that need to be matched to the correct locations on the skeleton.

Let me identify each bone:

Already labeled on the skeleton:
- Skull (at the top)
- Scapula (shoulder blade area)
- Sternum (breastbone in chest)
- Ribs (rib cage)
- Vertebrae (spine)
- Carpals (wrist)
- Pelvis (hip area)
- Femur (thigh bone)
- Patella (kneecap)
- Fibula (lower leg, outer side)
- Tibia (lower leg, inner side)
- Tarsals (ankle/foot area)

Labels that need to be placed:
1. Mandible - This is the jawbone, located at the lower part of the skull
2. Clavicle - This is the collarbone, connects the sternum to the scapula
3. Humerus - This is the upper arm bone, between shoulder and elbow
4. Radius - This is one of the forearm bones (on the thumb side when palm faces forward)
5. Ulna - This is the other forearm bone (on the pinky finger side)

Now let me verify these placements:
- Mandible → jaw ✓
- Clavicle → collarbone, horizontal bone connecting sternum to shoulder ✓
- Humerus → upper arm ✓
- Radius → forearm bone (lateral/thumb side) ✓
- Ulna → forearm bone (medial/pinky side) ✓

All the bones are correctly identified for their positions on the human skeleton.

Final Answer: The skeletal system diagram should have these bones labeled in their correct positions:

Head/Neck Area:
- Mandible (jawbone)

Shoulder/Chest Area:
- Clavicle (collarbone)

Arm:
- Humerus (upper arm)
- Radius (forearm - thumb side)
- Ulna (forearm - pinky side)

The other bones already shown on the diagram are: skull, scapula, sternum, ribs, vertebrae, carpals, pelvis, femur, patella, fibula, tibia, and tarsals.