Body Systems
* Skeletal System: Bones, cartilage, joints, ligaments
* Muscular System: Muscles (skeletal, smooth, cardiac)
* Nervous System: Brain, spinal cord, nerves, sensory organs
* Circulatory System: Heart, blood vessels (arteries, veins, capillaries), blood
* Respiratory System: Lungs, trachea, bronchi, diaphragm
* Digestive System: Mouth, esophagus, stomach, small intestine, large intestine, liver, pancreas
* Urinary System: Kidneys, ureters, bladder, urethra
* Reproductive System: Male: testes, penis, prostate; Female: ovaries, uterus, vagina
* Endocrine System: Glands that produce hormones (pituitary, thyroid, adrenal, pancreas)
* Integumentary System: Skin, hair, nails
Major Body Parts
* Head:
* Brain: Cerebrum, cerebellum, brainstem
* Eyes: Iris, pupil, lens, retina
* Ears: Outer ear, middle ear, inner ear
* Nose: Nasal cavity, olfactory bulbs
* Mouth: Teeth, tongue, salivary glands
* Neck:
* Thyroid gland
* Trachea
* Esophagus
* Torso:
* Chest: Heart, lungs, ribs, sternum
* Abdomen: Stomach, intestines, liver, pancreas, spleen, kidneys
* Limbs:
* Arms: Shoulder, upper arm, forearm, wrist, hand, fingers
* Legs: Hip, thigh, lower leg, ankle, foot, toes
Other Body Parts
* Hair: Follicles, shaft
* Skin: Epidermis, dermis, subcutaneous layer
* Nails: Nail bed, matrix
* Lymphatic System: Lymph nodes, vessels
* Immune System: White blood cells, antibodies
Important Notes:
* This is a simplified overview. There are many more specific structures and components within each body part and system.
* This list includes external body parts as well as those visible with imaging techniques.
* This list does not include microscopic structures such as cells, tissues, and organs.
I hope this comprehensive list helps! If you want to learn more about a specific body part or system, please let me know!