Interactive body systems worksheet for students to match organs with their corresponding systems.

Let's solve this worksheet by placing each organ into its correct body system: Nervous, Respiratory, Digestive, Skeletal, and Circulatory.

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🔹 Step 1: Understand Each System

- Nervous System: Controls body functions via the brain, spinal cord, and nerves.
- Respiratory System: Responsible for breathing — takes in oxygen and removes carbon dioxide.
- Digestive System: Breaks down food into nutrients; includes mouth to anus.
- Skeletal System: Provides structure and protection; made of bones.
- Circulatory System: Transports blood, nutrients, and oxygen; includes heart, blood vessels.

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🔹 Organ List (Given)

We’ll go through each organ and assign it to the correct system.

| Organ | System |
|------|--------|
| Pancreas | Digestive |
| Tibia | Skeletal |
| Heart | Circulatory |
| Vertebral Column | Skeletal |
| Spinal Chord | Nervous |
| Stomach | Digestive |
| Bronchi | Respiratory |
| Nerves | Nervous |
| Femur | Skeletal |
| Nasal Cavity | Respiratory |
| Lungs | Respiratory |
| Liver | Digestive |
| Humerus | Skeletal |
| Intestines | Digestive |
| Brain | Nervous |
| Skull | Skeletal |
| Trachea | Respiratory |
| Veins | Circulatory |
| Anus | Digestive |
| Esophagus | Digestive |
| Pharynx | Respiratory & Digestive *(shared)* |
| Larynx | Respiratory |
| Ribs | Skeletal |
| Arteries | Circulatory |

> Note: Pharynx is part of both respiratory and digestive systems (it’s a shared passageway). But since we need to place organs in one box, it's often listed under Respiratory or Digestive, but here it can be placed in either. For simplicity, we'll put it under Respiratory due to its role in air passage.

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✔ Final Answer:

#### NERVOUS SYSTEM
- Brain
- Spinal Chord
- Nerves

#### RESPIRATORY SYSTEM
- Nasal Cavity
- Pharynx
- Larynx
- Trachea
- Bronchi
- Lungs

#### DIGESTIVE SYSTEM
- Mouth (not listed, but implied)
- Esophagus
- Stomach
- Intestines
- Liver
- Pancreas
- Anus

> *Note:* The list doesn’t include "Mouth", but esophagus starts digestion after mouth. So all listed digestive organs are covered.

#### SKELETAL SYSTEM
- Skull
- Vertebral Column
- Rib
- Humerus
- Femur
- Tibia

#### CIRCULATORY SYSTEM
- Heart
- Arteries
- Veins

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📌 Completed Worksheet (Filling in blanks):

#### NERVOUS SYSTEM
1. Brain
2. Spinal Chord
3. Nerves

#### RESPIRATORY SYSTEM
1. Nasal Cavity
2. Pharynx
3. Larynx
4. Trachea
5. Bronchi
6. Lungs

#### DIGESTIVE SYSTEM
1. Esophagus
2. Stomach
3. Intestines
4. Liver
5. Pancreas
6. Anus

> *(Note: Some lists may have 5–6 slots. If only 5 spaces, omit one like pancreas or liver? But all are important. Probably 6 boxes provided.)*

#### SKELETAL SYSTEM
1. Skull
2. Vertebral Column
3. Ribs
4. Humerus
5. Femur
6. Tibia

#### CIRCULATORY SYSTEM
1. Heart
2. Arteries
3. Veins

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✔ Summary of Assignments:

| System | Organs |
|-------|--------|
| Nervous | Brain, Spinal Chord, Nerves |
| Respiratory | Nasal Cavity, Pharynx, Larynx, Trachea, Bronchi, Lungs |
| Digestive | Esophagus, Stomach, Intestines, Liver, Pancreas, Anus |
| Skeletal | Skull, Vertebral Column, Ribs, Humerus, Femur, Tibia |
| Circulatory | Heart, Arteries, Veins |

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💡 Tips:

- Liver & Pancreas are accessory organs in digestion — they help break down food.
- Heart pumps blood → circulatory.
- Bones like femur, tibia, humerus, skull → skeletal.
- Lungs, trachea, bronchi → all involved in breathing → respiratory.
- Brain & spinal cord → central nervous system.

This activity helps students understand how different organs work together in body systems.