1.
Integumentary system consists of skin, hair, nails, and exocrine glands such as sweat, oil, earwax, and mammary glands.
Skeletal system contains bones along with associated connective components including cartilage, joints, tendons, and ligaments.
Muscular system comprises visceral, cardiac, and skeletal muscle tissues.
Nervous system involves the brain, spinal cord, sensory organs, and nerves.
Endocrine system Pituitary, pineal, thyroid, parathyroids, endocrine pancreas, adrenals, testes, and ovaries
Cardiovascular system constitutes the heart and linked blood vessels.
Lymphatic system includes the lymph, together with related lymph nodes, and lymph vessels.
Respiratory system represents the mouth, nose, pharynx, larynx, trachea, bronchi, lungs, and diaphragm as a whole.
Digestive system collectively makes up the gastrointestinal organs such as mouth, salivary glands, esophagus, stomach, liver, gallbladder, exocrine pancreas, small intestine, and large intestine.
Urinary system composes of the kidneys, ureters, urinary bladder, and urethra.
Reproductive system involves variation in organs depending on the assigned birth sex. The system comprises genitals (penis and vagina), gonads (testes and ovaries), and other related organs Including the fallopian tubes, uterus, mammary glands , vas deferens, seminal vesicles, and prostate.
2. The respiratory system and urinary system aid in maintaining the acid-base balance of the body.