Pigmentation

 

Pigmentation of the skin is by five pigments in the skin mostly at the level of superficial epidermis as follows
 

bullet

Melanin (brown) found in stratum germinativum of epidermis. It is present in the dermis of monkeys and apes.

bullet

Melanoid (brown) is found in stratum germinativum of epidermis.

bullet

Carotene (yellow to orange) is found in stratum corneum which is most superficial layer.

bullet

Hemoglobin (purple) is found in superficial blood vessels of skin.

bullet

Oxyhemoglobin (red) is found in superficial blood vessels of skin.

The amount of the above substances present in the epidermis of the skin will determine the color which the skin adopts. Hence black people tend to have more Melanin (and of course melanoid) which is produce by melanocytes in the skin. White people have the least of melanin in the epidermis of skin. But all have the same number of melanocytes in skin.

 

Eye color

More

 

 

 

 

 

  

There is nothing in anatomy not found in this website

The Human Anatomy Laboratory
Creator: Oluwole Ogunranti

 

 

 

 

 

 

 

 

 

Cell biology
Histology
Embryology
Gross anatomy
Lymphatic drainage
Organ integration
Clinical anatomy

Quiz

Physiology

Biochemistry

Chemical Pathology

Pharmacology

Anatomical Pathology

Imaging

Medicine

Surgery


Skin chemistry
Skin lines
Clinical exam
Biopsy

 

Main Subject Course Links

eAnatomy eAnesthesia eBiochemistry eChemical pathology eCommunity Health
eDermatology eENT eGynecology eHematology eImaging
eMedicine eMedical microbiology eObstetrics eOphthalmology ePathology
ePediatrics ePharmacology ePhysiology ePsychiatry    eSurgery/eOrthopedics
eLab eOSCE eProcedures eInvestigations eSchool/Videopage
eOrgans eLocator Anatomy Museum eDissector eFractures/Dissect-it-yourself
All diseases eClerking eTreatment eDoctor ePatient