The Human Skeletal System Worksheet | Teach Starter - Free Printable

The image you've provided is a labeled diagram of the human skeleton, with blank labels pointing to various bones. The task appears to be identifying and labeling the major bones of the human skeletal system.

Let’s go through each label in order from top to bottom and left to right, based on standard anatomical positions:

1. Skull (Cranium) – The large bone at the top of the head that protects the brain.
2. Mandible – The lower jawbone; it's the only movable bone in the skull.
3. Clavicle (Collarbone) – The long, thin bone connecting the shoulder blade to the sternum.
4. Scapula (Shoulder Blade) – A flat triangular bone located on the back of the shoulder.
5. Humerus – The upper arm bone, extending from the shoulder to the elbow.
6. Radius – One of the two forearm bones (on the thumb side).
7. Ulna – The other forearm bone (on the pinky side), longer than the radius.
8. Carpals – The small bones in the wrist.
9. Metacarpals – The five bones in the palm of the hand.
10. Phalanges – The bones of the fingers and thumbs.
11. Sternum (Breastbone) – The flat bone in the center of the chest.
12. Ribs – The curved bones that form the ribcage, protecting the heart and lungs.
13. Vertebral Column (Spine) – The column of vertebrae running down the back.
14. Pelvis (Hip Bone) – Formed by the fusion of the ilium, ischium, and pubis.
15. Femur – The thigh bone, the longest and strongest bone in the body.
16. Patella (Kneecap) – The small bone in front of the knee joint.
17. Tibia – The larger of the two lower leg bones (shin bone).
18. Fibula – The thinner bone next to the tibia.
19. Tarsals – The bones of the ankle.
20. Metatarsals – The five bones in the foot.
21. Phalanges – The bones of the toes.

Step-by-step Explanation:

- Start from the head: The first label points to the skull, which encases the brain.
- Below the skull is the mandible, the lower jaw.
- Moving down, the clavicle connects the shoulder to the sternum.
- The scapula lies behind the clavicle on the back.
- The humerus extends from the shoulder to the elbow.
- In the forearm, the radius and ulna are paired bones.
- The carpals form the wrist, followed by metacarpals in the hand and phalanges in the fingers.
- The sternum is central in the chest, connected to the ribs.
- The vertebral column runs down the back.
- The pelvis supports the spine and connects to the legs.
- The femur is the largest bone, leading to the patella at the knee.
- The tibia and fibula form the lower leg.
- The tarsals form the ankle, metatarsals the foot arch, and phalanges the toes.

Final Answer:

Label the blanks in the following order:
1. Skull
2. Mandible
3. Clavicle
4. Scapula
5. Humerus
6. Radius
7. Ulna
8. Carpals
9. Metacarpals
10. Phalanges
11. Sternum
12. Ribs
13. Vertebral Column
14. Pelvis
15. Femur
16. Patella
17. Tibia
18. Fibula
19. Tarsals
20. Metatarsals
21. Phalanges

This completes the labeling of the major bones of the human skeleton.