An organ is a group of tissues with similar functions. Organ tissues categorized as parenchyma does the special job for organ and stroma tissues which are supportive, structural, connective or provide ancillary functions. For example, parenchyma tissues make the hormones in a gland, while the stroma includes the nerves or blood vessels in the parenchyma that oxygenate and helps to carry away its metabolic wastes. Third the connective tissues that provide a suitable place for it.

The main tissues that make up an organ exist in most multicellular organisms. In bacteria, the functional analogue of an organ is known as an organelle. Different types of organ. The organ is not yet properly defined, so all below are included in the organs.



Human Body organs

Muscles
Human skeleton
Joints
Ligaments
Tendons
Digestive organ
Mouth
Teeth
Tongue
Salivary glands
Parotid glands
Submandibular glands
Sublingual glands
Pharynx
Oesophagus
Stomach
Small intestine
Duodenum
Jejunum
Ileum
Large intestine
Liver
Gallbladder
Mesentery
Pancreas
Anal canal and anus
Blood cells
Respiratory organ
Nasal cavity
Pharynx
Larynx
Trachea
Bronchi
Lungs
Diaphragm
Urinary system
Kidneys
Ureter
Bladder
Urethra

Reproductive organs (Male and Female)
Female reproductive organ
Internal reproductive organs (Female)
Ovaries
Fallopian tubes
Uterus
Vagina
External reproductive organs (Female)
Vulva
Clitoris
Placenta

Male reproductive organ
Internal reproductive organs (Male)
Testes
Epididymis
Seminal vesicles
Prostate
Bulbourethral glands
External reproductive organs (Male)
Penis
Scrotum

Endocrine system
Pituitary gland
Pineal gland
Thyroid gland
Parathyroid glands
Adrenal glands
Pancreas

Circulatory 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
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