How many organ system we have
We have 11 organ systems in the human body. These include the integumentary system, skeletal system, muscular system, nervous system, endocrine system, cardiovascular system, lymphatic system, respiratory system, digestive system, urinary system, and reproductive system.
There are typically 11 organ systems in the human body. These include:
1. Integumentary System (skin, hair, nails)
2. Skeletal System (bones, cartilage, ligaments)
3. Muscular System (skeletal muscles)
4. Respiratory System (lungs, trachea, bronchi)
5. Circulatory System (heart, blood vessels)
6. Nervous System (brain, spinal cord, nerves)
7. Digestive System (mouth, esophagus, stomach, intestines)
8. Urinary System (kidneys, bladder, ureters, urethra)
9. Endocrine System (glands that produce hormones)
10. Reproductive System (male: testes, vas deferens, ; female: ovaries, fallopian tubes, uterus, )
11. Lymphatic System (lymph nodes, lymph vessels, spleen, thymus)
It's worth noting that some sources may group certain organs differently or consider additional sub-systems within these main systems.