Solved Name Skeletal System Worksheet 1. Label the following ... - Free Printable

Since I can't view images directly, I’ll help you solve the task based on your description. The worksheet appears to have two main parts:

1. Labeling the human skeletal system diagram with specific bones.
2. Identifying and labeling four types of movable joints shown in diagrams below.

Let’s go through both parts step by step.

---

🔹 Part 1: Label the Human Skeletal System

Here is a list of the bones to label, along with their locations on the skeleton:

| Letter | Bone Name | Location |
|--------|---------------------|---------|
| a | Skull | Head (entire skull) |
| b | Cranium | Top/back of the skull (protects the brain) |
| c | Mandible | Lower jawbone |
| d | Clavicle | Collarbone (connects shoulder to sternum) |
| e | Pectoral girdle | Shoulders (includes clavicle & scapula) |
| f | Scapula | Shoulder blade (on back) |
| g | Sternum | Breastbone (in center of chest) |
| h | Ribs | Curved bones forming rib cage |
| i | Humerus | Upper arm bone |
| j | Vertebrae | Bones of the spine |
| k | Vertebral column | Entire spine (cervical, thoracic, lumbar, sacral, coccygeal) |
| l | Pelvic girdle | Hip bones (connect legs to axial skeleton) |
| m | Radius | Forearm bone (thumb side) |
| n | Ulna | Forearm bone (palm side) |
| o | Carpals | Wrist bones (8 small bones) |
| p | Metacarpals | Hand bones (between wrist and fingers) |
| q | Phalanges | Finger and toe bones |
| r | Femur | Thigh bone (longest bone in body) |
| s | Patella | Knee cap |
| t | Tibia | Shin bone (larger lower leg bone) |
| u | Fibula | Smaller lower leg bone (next to tibia) |
| v | Tarsals | Ankle bones (7 bones) |
| w | Metatarsals | Foot bones (between ankle and toes) |

#### How to label:
- Use the letters provided next to each bone name and match them to the correct part on the diagram.
- For example:
- "a" → Skull (top of head)
- "d" → Clavicle (shoulder-to-chest bone)
- "h" → Ribs (curved bones around chest)
- "q" → Phalanges (fingers and toes)

> ✔ Tip: The pectoral girdle (e) includes both clavicle and scapula. The pelvic girdle (l) includes the hip bones (each made of ilium, ischium, pubis).

---

🔹 Part 2: Label the Four Types of Movable Joints

Below the skeleton are four diagrams showing different joint types. These are likely:

1. Ball-and-socket joint
2. Hinge joint
3. Pivot joint
4. Gliding (plane) joint

Let’s identify each one:

#### 1. Diagram (1): Ball-and-Socket Joint
- Example: Shoulder or hip joint
- Structure: Round ball-like end of one bone fits into a cup-like socket of another.
- Motion: Allows rotation in multiple directions (flexion, extension, abduction, adduction, rotation).
- Label: Ball-and-socket joint

#### 2. Diagram (2): Hinge Joint
- Example: Elbow or knee
- Structure: Two bones meet like a door hinge; one bone moves back and forth.
- Motion: Flexion and extension only.
- Label: Hinge joint

#### 3. Diagram (3): Pivot Joint
- Example: Neck (atlantoaxial joint), between C1 and C2 vertebrae
- Structure: One bone rotates around another (like a pivot).
- Motion: Rotation (e.g., turning head side to side).
- Label: Pivot joint

#### 4. Diagram (4): Gliding (Plane) Joint
- Example: Between carpal bones in the wrist or tarsal bones in the ankle
- Structure: Flat surfaces of bones glide over each other.
- Motion: Limited gliding movements (side-to-side, back-and-forth).
- Label: Gliding joint or Plane joint

---

✔ Final Answer Summary

#### Part 1: Skeleton Labels
Match each letter to the correct bone using the table above.

#### Part 2: Joint Types
Label the four diagrams as follows:
1. Ball-and-socket joint
2. Hinge joint
3. Pivot joint
4. Gliding joint

---

If you can describe the diagrams or confirm which joints are shown, I can give even more precise guidance!