Internal Body Parts Names in English with Images

An organ is a specialized structure made up of various tissues that work together as a unit to carry out a particular job. Organ systems are collections of related organs that perform related duties. Ten major systems of this kind are found in the human body: the lymphatic, circulatory, respiratory, digestive, urinary, neurological, integumentary, musculoskeletal, and reproductive systems. A tissue is made up of a collection of related cells that perform related tasks. These tissues eventually come together to form organs, organ systems, and ultimately an individual. Do you know how many organs humans have?

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Table of Contents

All lists Internal Body Parts:

Brain
Heart
Lungs
Liver
Stomach
Kidneys
Intestines
Pancreas
Spleen
Gallbladder
Bladder
Thyroid
Adrenal glands
Pituitary gland
Thymus
Pineal gland
Bone marrow
Uterus (in females)
Testes (in males)
Ovaries (in females)

Internal Body Parts Names in English with pictures:

Brain:
Body’s command center for thinking, feeling, and movement.
Heart:
Muscle that pumps blood, delivering oxygen and nutrients.
Lungs:
Organs for breathing, taking in oxygen and releasing carbon dioxide.
Liver:
Cleansing organ, filtering toxins and aiding digestion.
Stomach:
Digestive organ, breaking down food for absorption.
Kidneys:
Filters waste, producing urine to remove it from the body.
Intestines:
Tubes for digestion and nutrient absorption.
Pancreas:
Produces insulin for blood sugar regulation and enzymes for digestion.
Spleen:
reduces the risk of infection and removes old blood cells.
Gallbladder:
Stores bile for digestion.
Bladder:
Stores urine until elimination.
Thyroid:
Produces hormones for metabolism and growth.
Adrenal glands:
Produce hormones for stress response and blood pressure.
Pituitary gland:
Controls other glands and bodily functions.
Thymus:
Important for immune system function.
Pineal gland:
Regulates sleep-wake cycles.
Bone marrow:
Produces blood cells.
Uterus (in females):
Where babies grow during pregnancy.
Testes (in males):
Produce sperm and male hormones.
Ovaries (in females):
Produce eggs and female hormones.

Internal Body Parts Names in English:

Prostate gland (in males)
Esophagus
Diaphragm
Appendix
Rectum
Colon
Rectum
Trachea
Bronchi
Bronchioles
Alveoli
Veins
Arteries
Capillaries
Aorta
Vena cava
Pulmonary artery
Pulmonary vein
Coronary arteries
Coronary veins

20 Internal Body Parts Names with Images:

Prostate gland (in males):
Gland in males that produces seminal fluid, aiding in sperm nourishment and transport.
Esophagus:
Muscular tube connecting the throat to the stomach, facilitating food passage.
Diaphragm:
Dome-shaped muscle beneath the lungs aiding in breathing by contracting and relaxing.
Appendix:
Small pouch attached to the large intestine, playing a role in the immune system.
Rectum:
Final section of the large intestine, storing feces before elimination.
Colon:
Large intestine section responsible for water and salt absorption from feces.
Trachea:
Windpipe carrying air to and from the lungs.
Bronchi:
Tubes branching off the trachea, delivering air to the lungs.
Bronchioles:
smaller bronchial branches seen in the lungs.
Alveoli:
little air sacs in the lungs that are used for gas exchange.
Veins:
Blood vessels carrying deoxygenated blood back to the heart.
Arteries:
arteries that remove oxygenated blood from the heart.
Capillaries:
Microscopic blood vessels connecting arteries and veins, facilitating gas and nutrient exchange.
Aorta:
Largest artery in the body, distributing oxygenated blood to the body.
Vena cava:
Large vein carrying deoxygenated blood from the body back to the heart.
Pulmonary artery:
Blood vessel carrying deoxygenated blood from the heart to the lungs.
Pulmonary vein:
blood vessel that travels from the lungs to the heart carrying oxygenated blood.
Coronary arteries:
Blood vessels supplying oxygen-rich blood to the heart muscle.
Coronary veins:
Blood vessels draining oxygen-depleted blood from the heart muscle.

20 Internal Body Parts Names in English:

Lymph nodes
Lymphatic vessels
Tonsils
Thymus gland
Eustachian tube
Eardrum
Cochlea
Vestibular system
Optic nerve
Retina
Cornea
Lens
Iris
Pupil
Urethra
Ureters
Vagina
Prostate gland
Cowper’s gland
Epididymis

Internal Body Parts Names in English with pictures:

Lymph nodes:
Small structures that filter lymph and aid in fighting infections.
Lymphatic vessels:
Vessels that transport lymph, a fluid containing white blood cells, throughout the body.
Tonsils:
Clusters of tissue in the throat that help defend against infections.
Thymus gland:
Gland in the chest crucial for immune system development, especially in childhood.
Eustachian tube:
Tube connecting the middle ear to the back of the nose, maintaining pressure balance.
Eardrum:
Thin membrane separating the outer and middle ear, vibrating in response to sound.
Cochlea:
Spiral-shaped organ in the inner ear responsible for hearing.
Vestibular system:
Inner ear part regulating balance and spatial orientation.
Optic nerve:
transmits visual information from the brain to the eye.
Retina:
Light-sensitive layer at the back of the eye containing photoreceptor cells.
Cornea:
Transparent outer eye layer, aiding in focusing light onto the retina.
Lens:
Clear eye structure focusing light onto the retina.
Iris:
Colored eye part controlling pupil size and light entering.
Pupil:
Circular opening in the center of the iris allowing light into the eye.
Urethra:
tubes that connect the kidneys and bladder to transport pee.
Ureters:
tubes that connect the bladder to the kidneys to transport urine.
Vagina:
Muscular canal in females connecting the uterus to the outside and involved in reproduction.
Prostate gland:
Gland in males producing seminal fluid for sperm nourishment and transport.
Cowper’s gland:
Glands in males secreting fluid to lubricate and neutralize urethral acidity.
Epididymis:
Each testicle has a coiled tube behind it where mature sperm are kept.

Vas deferens
Seminal vesicles
Cervix
Fallopian tubes
Endometrium
Myometrium
Perimetrium
Ovary follicles
Seminiferous tubules
Leydig cells
Sertoli cells
Glomerulus
Nephron
Renal tubules
Loop of Henle
Collecting duct
Bowman’s capsule
Glomerular filtration rate (GFR)
Proximal convoluted tubule
Distal convoluted tubule

Human Internal body parts pictures:

Vas deferens:
Tube that carries sperm from the epididymis to the ejaculatory duct.
Seminal vesicles:
Glands that produce seminal fluid, nourishing sperm and enhancing their motility.
Cervix:
Lower part of the uterus that connects to the vagina.
Fallopian tubes:
Tubes that transport eggs from the ovaries to the uterus and are the site of fertilization.
Endometrium:
Inner lining of the uterus that thickens during the menstrual cycle and sheds during menstruation.
Myometrium:
Middle layer of the uterus composed of smooth muscle.
Perimetrium:
Outer layer of the uterus.
Ovary follicles:
Structures within the ovaries that contain immature eggs.
Seminiferous tubules:
Tubes in the testes where sperm production occurs.
Leydig cells:
Cells in the testes that produce testosterone.
Sertoli cells:
Cells in the testes that support sperm production.
Glomerulus:
Network of capillaries in the kidney where blood filtration occurs.
Nephron:
Functional unit of the kidney responsible for filtering blood and producing urine.
Renal tubules:
Structures in the nephron where reabsorption and secretion occur.
Loop of Henle:
U-shaped portion of the nephron involved in water and salt reabsorption.
Collecting duct:
Structure in the kidney that collects urine from multiple nephrons.
Bowman’s capsule:
Structure in the nephron that surrounds the glomerulus and collects filtrate.
Glomerular filtration rate (GFR):
Rate at which blood is filtered by the glomerulus.
Proximal convoluted tubule:
First segment of the renal tubule where reabsorption occurs.
Distal convoluted tubule:
Segment of the renal tubule where further reabsorption and secretion occur.

What are the 10 internal parts of the body?

Ascending limb
Descending limb
Podocytes
Proximal tubule
Distal tubule
Loop of Henle
Glomerular capsule
Glomerulus
Renal corpuscle
Juxtaglomerular apparatus
Macula densa
Renal papilla
Renal pyramid
Renal cortex
Renal medulla
Renal pelvis
Ureteric orifices
Major calyx
Minor calyx
Urethral sphincters

Internal body parts names in English with images:

Ascending limb:
Part of the nephron loop that moves ions out of the tubule.
Descending limb:
Part of the nephron loop that moves water out of the tubule.
Podocytes:
Cells in the Bowman’s capsule that help filter blood.
Proximal tubule:
Site of reabsorption of water, ions, and nutrients.
Distal tubule:
Site of further ion reabsorption and secretion.
Loop of Henle:
U-shaped portion of the nephron involved in concentrating urine.
Glomerular capsule:
Capsule surrounding the glomerulus, where filtration occurs.
Glomerulus:
Network of blood vessels where blood filtration occurs.
Renal corpuscle:
Structure composed of the glomerulus and glomerular capsule.
Juxtaglomerular apparatus:
Area near the glomerulus involved in blood pressure regulation.
Macula densa:
Cells in the distal tubule that monitor sodium concentration in the filtrate.
Renal papilla:
Tip of the renal pyramid where urine is collected.
Renal pyramid:
Triangular-shaped tissue in the renal medulla.
Renal cortex:
Outer layer of the kidney containing nephrons.
Renal medulla:
Inner part of the kidney containing renal pyramids and collecting ducts.
Renal pelvis:
Funnel-shaped structure that collects urine from the kidney.
Ureteric orifices:
Openings where the ureters connect to the renal pelvis.
Major calyx:
Collecting structure that merges to form the renal pelvis.
Minor calyx:
Collecting structure that merges to form the major calyx.
Urethral sphincters:
Muscles that control the flow of urine from the bladder through the urethra.