Interactive worksheet for learning human skeletal system anatomy.
A diagram of the human skeletal system with labeled bones and blank spaces for drag-and-drop identification, including bones like the skull, ribs, femur, and tibia.
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Show Answer Key & Explanations
Step-by-step solution for: Skeletal system worksheet
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Show Answer Key & Explanations
Step-by-step solution for: Skeletal system worksheet
Let’s go step by step to match each bone name with the correct part of the skeleton.
We’ll start from the top and work our way down, matching labels to bones using what we know about human anatomy — and the word bank at the bottom.
---
Top label (pointing to skull):
That’s the head bone → Cranium
---
Left side, shoulder area (top box on left):
Points to the collarbone → Clavicle
Next box down on left:
Points to the breastbone in the center of chest → Sternum
Next box down on left:
Points to the ribs → Ribs
Next box down on left:
Points to the backbone/spine → Vertebrae
Bottom left box (near wrist/hand):
Points to the outer forearm bone (when palm faces forward) → Ulna
Wait — actually, let’s double-check:
In standard anatomical position (palms forward), the radius is on the thumb side (lateral), and ulna is on the pinky side (medial). The arrow here points to the inner side of the forearm (closer to body) → that’s the ulna.
But wait — looking again at the diagram:
The left arm’s lower box points to the bone on the *outside* of the forearm (away from body) when arms are at sides? Actually, no — in this drawing, the skeleton’s palms are facing forward, so:
- Left arm: the box pointing to the bone closer to the body = ulna
- Right arm: same logic
Actually, let’s look at both arms together.
On the right side, there are two boxes for the forearm:
- Top right forearm box → points to the bone on the thumb side → Radius
- Bottom right forearm box → points to the bone on the pinky side → Ulna
Similarly, on the left side:
- The single forearm box points to the bone on the pinky side → Ulna
Wait — but in the image, the left side has only one forearm label, and it’s pointing to the bone that’s on the medial side (closer to body) → yes, that’s ulna.
But hold on — let’s check the word bank. We have both Radius and Ulna. So we need to assign them correctly.
Looking again:
Left arm: one label pointing to the inner forearm bone → Ulna
Right arm: two labels? No — actually, looking at the original image description:
There are 14 blank boxes total.
Let me count and map them properly based on standard skeletal labeling:
From top to bottom, left to right:
1. Skull → Cranium
2. Left shoulder (collarbone) → Clavicle
3. Left chest (breastbone) → Sternum
4. Left rib cage → Ribs
5. Left spine → Vertebrae
6. Left forearm (inner) → Ulna
7. Left hip/pelvis area → Pelvis
8. Left thigh → Femur
9. Left shin (front/larger bone) → Tibia
10. Right shoulder blade → Scapula
11. Right upper arm → Humerus
12. Right forearm (outer/thumb side) → Radius
13. Right kneecap → Patella
14. Right lower leg (thin bone beside tibia) → Fibula
Wait — let’s align with actual positions in the diagram as described.
Better approach: use common textbook labeling order.
Standard labeling for such diagrams:
Head: Cranium
Shoulder girdle: Clavicle (collarbone), Scapula (shoulder blade)
Thorax: Sternum, Ribs
Spine: Vertebrae
Arm: Humerus (upper), Radius & Ulna (forearm)
Pelvis: Pelvis
Leg: Femur (thigh), Patella (kneecap), Tibia & Fibula (lower leg)
Now, matching to the arrows:
Top center → Cranium
Left side, first box (shoulder) → Clavicle
Second box (chest center) → Sternum
Third box (ribs) → Ribs
Fourth box (spine) → Vertebrae
Fifth box (forearm, inner) → Ulna
Sixth box (hip) → Pelvis
Seventh box (thigh) → Femur
Eighth box (shin, front) → Tibia
Right side:
First box (shoulder blade) → Scapula
Second box (upper arm) → Humerus
Third box (forearm, outer) → Radius
Fourth box (knee cap) → Patella
Fifth box (lower leg, thin bone) → Fibula
Wait — that’s 13. Let’s recount the blanks.
Original image has:
- 1 at top (head)
- 4 on left torso/arm
- 2 on left leg
- 1 on left hip? Wait no — let's list all 14:
Actually, counting the orange boxes in the image description:
Top: 1 (cranium)
Left column: 5 boxes (clavicle, sternum, ribs, vertebrae, ulna) — wait no, let's see:
From user’s image description:
Boxes:
1. Top → head
Then left side:
2. Shoulder area
3. Chest center
4. Rib area
5. Spine
6. Forearm (left)
7. Hip/pelvis
8. Thigh (left)
9. Shin (left)
Right side:
10. Shoulder blade
11. Upper arm
12. Forearm (right, two boxes? Or one?)
Wait — in the initial problem, it says “drag and drop”, and there are 14 words and 14 boxes.
Word bank has 14 terms:
PELVIS, CRANIUM, RADIUS, VERTEBRAE, TIBIA, STERNUM, FIBULA, CLAVICLE, SCAPULA, RIBS, FEMUR, HUMERUS, PATELLA, ULNA
So 14 bones.
Now, mapping:
1. Head → Cranium
2. Left clavicle → Clavicle
3. Sternum → Sternum
4. Ribs → Ribs
5. Vertebrae → Vertebrae
6. Left ulna → Ulna (since it's the medial bone)
7. Pelvis → Pelvis
8. Left femur → Femur
9. Left tibia → Tibia (larger shin bone)
10. Right scapula → Scapula
11. Right humerus → Humerus
12. Right radius → Radius (lateral forearm bone)
13. Right patella → Patella
14. Right fibula → Fibula (smaller lower leg bone)
Yes, that uses all 14.
Now, to confirm:
- Cranium: skull ✔️
- Clavicle: collarbone ✔️
- Sternum: breastbone ✔️
- Ribs: rib cage ✔️
- Vertebrae: spine ✔️
- Ulna: inner forearm (pinky side) ✔️
- Pelvis: hip bone ✔️
- Femur: thigh bone ✔️
- Tibia: shin bone (weight-bearing) ✔️
- Scapula: shoulder blade ✔️
- Humerus: upper arm ✔️
- Radius: outer forearm (thumb side) ✔️
- Patella: kneecap ✔️
- Fibula: smaller lower leg bone ✔️
All matched.
Final Answer:
Top box: Cranium
Left side, from top to bottom: Clavicle, Sternum, Ribs, Vertebrae, Ulna, Pelvis, Femur, Tibia
Right side, from top to bottom: Scapula, Humerus, Radius, Patella, Fibula
But since the question likely expects the answers in the order of the boxes as they appear (probably left to right, top to bottom), let’s list them in the sequence the boxes are arranged.
Assuming the boxes are filled in this order (as per typical worksheet layout):
Row 1: Cranium
Row 2 (left): Clavicle
Row 2 (right): Scapula
Row 3 (left): Sternum
Row 3 (right): Humerus
Row 4 (left): Ribs
Row 4 (right): Radius
Row 5 (left): Vertebrae
Row 5 (right): [wait, no — let's think visually]
Actually, better to list by position:
1. Top center: Cranium
2. Left, second row: Clavicle
3. Left, third row: Sternum
4. Left, fourth row: Ribs
5. Left, fifth row: Vertebrae
6. Left, sixth row: Ulna
7. Left, seventh row: Pelvis
8. Left, eighth row: Femur
9. Left, ninth row: Tibia
10. Right, second row: Scapula
11. Right, third row: Humerus
12. Right, fourth row: Radius
13. Right, fifth row: Patella
14. Right, sixth row: Fibula
Wait — that’s 14, but the right side might not have a box for every level.
To avoid confusion, I’ll provide the answer as a list corresponding to the most logical filling order based on standard diagrams.
Since the student will drag and drop, the exact box order isn’t critical as long as each bone is matched correctly.
But for the final answer, I’ll list the matches clearly.
Final Answer:
- Skull: Cranium
- Collarbone: Clavicle
- Breastbone: Sternum
- Rib cage: Ribs
- Spine: Vertebrae
- Inner forearm bone (left): Ulna
- Hip bone: Pelvis
- Thigh bone (left): Femur
- Shin bone (left): Tibia
- Shoulder blade (right): Scapula
- Upper arm bone (right): Humerus
- Outer forearm bone (right): Radius
- Kneecap (right): Patella
- Smaller lower leg bone (right): Fibula
This covers all 14 bones correctly.
We’ll start from the top and work our way down, matching labels to bones using what we know about human anatomy — and the word bank at the bottom.
---
Top label (pointing to skull):
That’s the head bone → Cranium
---
Left side, shoulder area (top box on left):
Points to the collarbone → Clavicle
Next box down on left:
Points to the breastbone in the center of chest → Sternum
Next box down on left:
Points to the ribs → Ribs
Next box down on left:
Points to the backbone/spine → Vertebrae
Bottom left box (near wrist/hand):
Points to the outer forearm bone (when palm faces forward) → Ulna
Wait — actually, let’s double-check:
In standard anatomical position (palms forward), the radius is on the thumb side (lateral), and ulna is on the pinky side (medial). The arrow here points to the inner side of the forearm (closer to body) → that’s the ulna.
But wait — looking again at the diagram:
The left arm’s lower box points to the bone on the *outside* of the forearm (away from body) when arms are at sides? Actually, no — in this drawing, the skeleton’s palms are facing forward, so:
- Left arm: the box pointing to the bone closer to the body = ulna
- Right arm: same logic
Actually, let’s look at both arms together.
On the right side, there are two boxes for the forearm:
- Top right forearm box → points to the bone on the thumb side → Radius
- Bottom right forearm box → points to the bone on the pinky side → Ulna
Similarly, on the left side:
- The single forearm box points to the bone on the pinky side → Ulna
Wait — but in the image, the left side has only one forearm label, and it’s pointing to the bone that’s on the medial side (closer to body) → yes, that’s ulna.
But hold on — let’s check the word bank. We have both Radius and Ulna. So we need to assign them correctly.
Looking again:
Left arm: one label pointing to the inner forearm bone → Ulna
Right arm: two labels? No — actually, looking at the original image description:
There are 14 blank boxes total.
Let me count and map them properly based on standard skeletal labeling:
From top to bottom, left to right:
1. Skull → Cranium
2. Left shoulder (collarbone) → Clavicle
3. Left chest (breastbone) → Sternum
4. Left rib cage → Ribs
5. Left spine → Vertebrae
6. Left forearm (inner) → Ulna
7. Left hip/pelvis area → Pelvis
8. Left thigh → Femur
9. Left shin (front/larger bone) → Tibia
10. Right shoulder blade → Scapula
11. Right upper arm → Humerus
12. Right forearm (outer/thumb side) → Radius
13. Right kneecap → Patella
14. Right lower leg (thin bone beside tibia) → Fibula
Wait — let’s align with actual positions in the diagram as described.
Better approach: use common textbook labeling order.
Standard labeling for such diagrams:
Head: Cranium
Shoulder girdle: Clavicle (collarbone), Scapula (shoulder blade)
Thorax: Sternum, Ribs
Spine: Vertebrae
Arm: Humerus (upper), Radius & Ulna (forearm)
Pelvis: Pelvis
Leg: Femur (thigh), Patella (kneecap), Tibia & Fibula (lower leg)
Now, matching to the arrows:
Top center → Cranium
Left side, first box (shoulder) → Clavicle
Second box (chest center) → Sternum
Third box (ribs) → Ribs
Fourth box (spine) → Vertebrae
Fifth box (forearm, inner) → Ulna
Sixth box (hip) → Pelvis
Seventh box (thigh) → Femur
Eighth box (shin, front) → Tibia
Right side:
First box (shoulder blade) → Scapula
Second box (upper arm) → Humerus
Third box (forearm, outer) → Radius
Fourth box (knee cap) → Patella
Fifth box (lower leg, thin bone) → Fibula
Wait — that’s 13. Let’s recount the blanks.
Original image has:
- 1 at top (head)
- 4 on left torso/arm
- 2 on left leg
- 1 on left hip? Wait no — let's list all 14:
Actually, counting the orange boxes in the image description:
Top: 1 (cranium)
Left column: 5 boxes (clavicle, sternum, ribs, vertebrae, ulna) — wait no, let's see:
From user’s image description:
Boxes:
1. Top → head
Then left side:
2. Shoulder area
3. Chest center
4. Rib area
5. Spine
6. Forearm (left)
7. Hip/pelvis
8. Thigh (left)
9. Shin (left)
Right side:
10. Shoulder blade
11. Upper arm
12. Forearm (right, two boxes? Or one?)
Wait — in the initial problem, it says “drag and drop”, and there are 14 words and 14 boxes.
Word bank has 14 terms:
PELVIS, CRANIUM, RADIUS, VERTEBRAE, TIBIA, STERNUM, FIBULA, CLAVICLE, SCAPULA, RIBS, FEMUR, HUMERUS, PATELLA, ULNA
So 14 bones.
Now, mapping:
1. Head → Cranium
2. Left clavicle → Clavicle
3. Sternum → Sternum
4. Ribs → Ribs
5. Vertebrae → Vertebrae
6. Left ulna → Ulna (since it's the medial bone)
7. Pelvis → Pelvis
8. Left femur → Femur
9. Left tibia → Tibia (larger shin bone)
10. Right scapula → Scapula
11. Right humerus → Humerus
12. Right radius → Radius (lateral forearm bone)
13. Right patella → Patella
14. Right fibula → Fibula (smaller lower leg bone)
Yes, that uses all 14.
Now, to confirm:
- Cranium: skull ✔️
- Clavicle: collarbone ✔️
- Sternum: breastbone ✔️
- Ribs: rib cage ✔️
- Vertebrae: spine ✔️
- Ulna: inner forearm (pinky side) ✔️
- Pelvis: hip bone ✔️
- Femur: thigh bone ✔️
- Tibia: shin bone (weight-bearing) ✔️
- Scapula: shoulder blade ✔️
- Humerus: upper arm ✔️
- Radius: outer forearm (thumb side) ✔️
- Patella: kneecap ✔️
- Fibula: smaller lower leg bone ✔️
All matched.
Final Answer:
Top box: Cranium
Left side, from top to bottom: Clavicle, Sternum, Ribs, Vertebrae, Ulna, Pelvis, Femur, Tibia
Right side, from top to bottom: Scapula, Humerus, Radius, Patella, Fibula
But since the question likely expects the answers in the order of the boxes as they appear (probably left to right, top to bottom), let’s list them in the sequence the boxes are arranged.
Assuming the boxes are filled in this order (as per typical worksheet layout):
Row 1: Cranium
Row 2 (left): Clavicle
Row 2 (right): Scapula
Row 3 (left): Sternum
Row 3 (right): Humerus
Row 4 (left): Ribs
Row 4 (right): Radius
Row 5 (left): Vertebrae
Row 5 (right): [wait, no — let's think visually]
Actually, better to list by position:
1. Top center: Cranium
2. Left, second row: Clavicle
3. Left, third row: Sternum
4. Left, fourth row: Ribs
5. Left, fifth row: Vertebrae
6. Left, sixth row: Ulna
7. Left, seventh row: Pelvis
8. Left, eighth row: Femur
9. Left, ninth row: Tibia
10. Right, second row: Scapula
11. Right, third row: Humerus
12. Right, fourth row: Radius
13. Right, fifth row: Patella
14. Right, sixth row: Fibula
Wait — that’s 14, but the right side might not have a box for every level.
To avoid confusion, I’ll provide the answer as a list corresponding to the most logical filling order based on standard diagrams.
Since the student will drag and drop, the exact box order isn’t critical as long as each bone is matched correctly.
But for the final answer, I’ll list the matches clearly.
Final Answer:
- Skull: Cranium
- Collarbone: Clavicle
- Breastbone: Sternum
- Rib cage: Ribs
- Spine: Vertebrae
- Inner forearm bone (left): Ulna
- Hip bone: Pelvis
- Thigh bone (left): Femur
- Shin bone (left): Tibia
- Shoulder blade (right): Scapula
- Upper arm bone (right): Humerus
- Outer forearm bone (right): Radius
- Kneecap (right): Patella
- Smaller lower leg bone (right): Fibula
This covers all 14 bones correctly.
Parent Tip: Review the logic above to help your child master the concept of the human skeletal system worksheet.
