honeypot link
skip to main content
skip to main content
Professional
Consumer
MERCK MANUAL
Consumer Version
HEALTH TOPICS
HEALTHY LIVING
SYMPTOMS
EMERGENCIES
DRUG INFO
RESOURCES
COMMENTARY
ABOUT US
HEALTH TOPICS
HEALTHY LIVING
SYMPTOMS
Home
/
Quick Facts: Blood Disorders
/
Biology of Blood
/
Biology of Blood
Expand all
Collapse all
Overview of Blood
What does blood do?
What is in blood?
Plasma
Red blood cells
White blood cells
Platelets
What problems can develop in your blood?