Question

III. Lymphatic System
• Major organs: ___________________________________________________________
• Functions: ___________________________________________________________
• Key structures: ___________________________________________________________
IX. Respiratory System
• Major organs: ___________________________________________________________
• Functions: ___________________________________________________________
• Key structures: ___________________________________________________________
X. Digestive System
• Major organs: ___________________________________________________________
• Functions: ___________________________________________________________
• Key structures: ___________________________________________________________
XI. Urinary System
• Major organs: ___________________________________________________________
• Functions: ___________________________________________________________
• Key structures: ___________________________________________________________
XII. Reproductive System
• Major organs: ___________________________________________________________
• Functions: ___________________________________________________________
• Key structures: ___________________________________________________________

Answer 1

Certainly! Below is the information for each of the specified systems:

### III. Lymphatic System
- **Major organs:** Lymph nodes, spleen, thymus, tonsils, lymphatic vessels.
- **Functions:** Maintains fluid balance, absorbs fats from the digestive tract, facilitates immune responses by transporting white blood cells and filtering pathogens.
- **Key structures:** Lymph, lymphatic vessels, lymph nodes, spleen, thymus gland.

### IX. Respiratory System
- **Major organs:** Lungs, trachea, bronchi, diaphragm, nasal cavity.
- **Functions:** Facilitates gas exchange (oxygen in, carbon dioxide out), regulates blood pH, protects against pathogens and irritants in the air.
- **Key structures:** Alveoli, pleurae, bronchial tubes, larynx, pharynx.

### X. Digestive System
- **Major organs:** Mouth, esophagus, stomach, small intestine, large intestine, liver, pancreas, gallbladder.
- **Functions:** Breaks down food into nutrients (digestion), absorbs nutrients into the bloodstream, eliminates waste products.
- **Key structures:** Salivary glands, gastric glands, intestinal villi, liver lobules, pancreatic ducts.

### XI. Urinary System
- **Major organs:** Kidneys, ureters, bladder, urethra.
- **Functions:** Filters blood to remove waste products, regulates blood volume and composition, maintains electrolyte balance and pH levels, produces urine.
- **Key structures:** Nephrons (functional units of kidneys), renal pelvis, bladder wall, sphincters.

### XII. Reproductive System
- **Major organs:**
- **Male:** Testes, vas deferens, prostate gland, seminal vesicles, penis.
- **Female:** Ovaries, fallopian tubes, uterus, vagina.
- **Functions:** Produces gametes (sperm in males, eggs in females), facilitates reproduction, hormonal regulation of secondary sexual characteristics.
- **Key structures:**
- **Male:** Scrotum, epididymis, urethra.
- **Female:** Endometrium, cervix, vulva.

Feel free to ask if you need more detailed information about any of these systems!