40s
academic
adult
analyzing
anatomical
anatomy
biology
body
caucasian
classroom
coat
concentration
cropped
desk
dummy
education
educational
equipment
examining
expertise
gesturing
high
indoor
intelligence
internal
knowledge
lab
lung
male
man
mature
men
model
occupation
organ
people
person
pointing
profession
professional
professor
representation
research
school
science
scientific
showing
study
teacher
university