1) Neuroscientist - A scientist specialised in biology of neurons
Organ system- Nervous system
2)Gastroenterologist- A person who is expert in science of digestive system and its disorders
Organ system- Digestive system
3)Optometrist-A person who examines eye to detect defects in vision or any sign of injury etc.
Organ system-Visual system of body
4)Hematologist-A person who is expert in study of blood, blood forming organs and blood disease
Organ system-Blood system
5)Audiologist- A person who is expert in study of hearing, balance, and related disorders.
Organ system- AUditory system of body
6)Cardiologist- A person who is expert in study of heart and its related disorders
Organ system- Circulatory system
7)Nephrologist- A person who is expert in study of kidneys,problems related to kidneys and preservation of kidney health
Organ system- Excretory system
8)Dermatologist- A person who is expert in study of skin, nails, hair and its diseases
Organ system- Integumentary system
9)Dietician- A person who is expert in study of human nutrition and diet.
10)Pathologist- A person who interprets and diagnoses the changes caused by disease in tissues and body fluids.