It is widely believed that there are 79 organs; however, there is no universally standard definition of what constitutes an organ, and some tissue groups' status as one is debated. Since there is no single standard definition of what an organ is, the number of organs varies depending on how one defines an organ. For example, this list contains much more than 79 different organs. Musculoskeletal system •Human skeleton •Joints •Ligaments •Muscular system •Tendons Digestive system •Mouth •Teeth •Tongue •Salivary glands •Parotid glands •Submandibular glands •Sublingual glands •Pharynx •Esophagus •Stomach •Small intestine •Duodenum •Jejunum •Ileum •Large intestine •Liver •Gallbladder •Mesentery •Pancreas Respiratory system •Nasal cavity •Pharynx •Larynx •Trachea •Bronchi •Lungs •Diaphragm Urinary system •Kidneys •Ureters •Bladder •Urethra Reproductive organs Female reproductive system •Internal reproductive organs •Ovaries •Fallopian tubes •Uterus •Vagina •External reproductive organs •Vulva •Clitoris •Placenta Male reproductive system •Internal reproductive organs •Testes •Epididymis •Vas deferens •Seminal vesicles •Prostate •Bulbourethral glands •External reproductive organs •Penis •Scrotum Endocrine glands •Pituitary gland •Pineal gland •Thyroid gland •Parathyroid glands •Adrenal glands •Pancreas Circulatory system Cardiovascular system •Heart •Arteries •Veins •Capillaries Lymphatic system •Lymphatic vessel •Lymph node •Bone marrow •Thymus •Spleen •Gut-associated lymphoid tissue •Tonsils Nervous system •Brain •Cerebrum •Cerebral hemispheres •Diencephalon •The brainstem •Midbrain •Pons •Medulla oblongata •Cerebellum •The spinal cord •The ventricular system •Choroid plexus Peripheral nervous system •Nerves •Cranial nerves •Spinal nerves •Ganglia •Enteric nervous system Sensory organs •Eye •Cornea •Iris •Ciliary body •Lens •Retina •Ear •Outer ear •Earlobe •Eardrum •Middle ear •Ossicles •Inner ear •Cochlea •Vestibule of the ear •Semicircular canals •Olfactory epithelium •Tongue •Taste buds Integumentary system •Mammary glands •Skin •Subcutaneous tissue Source: Wikipedia - https://en.wikipedia.org/wiki/List_of_organs_of_the_human_body