Question

list of major organs (student version)
match each organ to the correct body system it belongs to.
major organs:

1. brain
2. spinal cord
3. heart
4. lungs
5. stomach
6. liver
7. small intestine
8. large intestine
9. kidneys
10. bladder
11. skin
12. pancreas
13. spleen
14. esophagus
15. trachea
16. uterus
17. ovaries
18. testes
19. bones
20. muscles
21. thyroid gland
22. gallbladder

body systems to choose from:

• nervous system
• circulatory (cardiovascular) system
• respiratory system
• digestive system
• urinary (excretory) system
• integumentary system
• muscular system
• skeletal system
• endocrine system
• reproductive system
• lymphatic (immune) system

Explanation:

1. Brain and Spinal cord are key parts of the Nervous System, controlling and coordinating body functions.
2. Heart is in the Circulatory (Cardiovascular) System, pumping blood.
3. Lungs are in the Respiratory System, facilitating gas - exchange.
4. Stomach, Liver, Small intestine, Large intestine, Esophagus, Pancreas, Gallbladder are in the Digestive System, involved in food breakdown and nutrient absorption.
5. Kidneys and Bladder are in the Urinary (Excretory) System, filtering waste and storing urine.
6. Skin is in the Integumentary System, providing a protective barrier.
7. Muscles are in the Muscular System, enabling movement.
8. Bones are in the Skeletal System, providing support and protection.
9. Thyroid gland is in the Endocrine System, secreting hormones.
10. Uterus, Ovaries, Testes are in the Reproductive System, related to reproduction.
11. Spleen is in the Lymphatic (Immune) System, involved in immune response.
12. Trachea is in the Respiratory System, conducting air to the lungs.

Answer:

1. Brain - Nervous System
2. Spinal cord - Nervous System
3. Heart - Circulatory (Cardiovascular) System
4. Lungs - Respiratory System
5. Stomach - Digestive System
6. Liver - Digestive System
7. Small intestine - Digestive System
8. Large intestine - Digestive System
9. Kidneys - Urinary (Excretory) System
10. Bladder - Urinary (Excretory) System
11. Skin - Integumentary System
12. Pancreas - Digestive System
13. Spleen - Lymphatic (Immune) System
14. Esophagus - Digestive System
15. Trachea - Respiratory System
16. Uterus - Reproductive System
17. Ovaries - Reproductive System
18. Testes - Reproductive System
19. Bones - Skeletal System
20. Muscles - Muscular System
21. Thyroid gland - Endocrine System
22. Gallbladder - Digestive System