英文關鍵字
aerial
anatomy
arteries
arteriole
artery
background
biology
blood
bloodstream
body
capillaries
capillary
cardiovascular
cells
circulation
circulatory
closeup
color
diagram
disease
double
exchange
fluid
health
healthcare
heart
hormones
human
illustration
lymph
lymphatic
lymphedema
medical
medicine
metabolic
metabolism
nodes
organ
perspective
physiology
science
stomach
structure
system
vein
vessel
vessels