X-7 trachea & esophagus
rat, H&E, JB-4


X-7(Rs1)
trachea & esophagus - x2 objective lens


Adv - adventitia
Car - cartilage plate
black arrowheads - ends of cartilage plate
black box - seen at higher magnification in fig X-7(Rs2)
blue box - seen at higher magnification in fig X-7(Rs4)

X-7(Rs2)
trachea - x10 objective lens


Ad - adipose tissue
Adv - adventitia
BV - blood vessels
Car - cartilage plate
Muc - mucosa
N - nerve
Peri - perichondrium
black box - seen at higher magnification in fig X-7(Rs3)

X-7(Rs3)
trachea - x40 objective lens


BV - blood vessel
Cap - capsule
Cb - chondroblasts
Cc - chondrocytes
Cp - chondroprogenitor cells
GC - goblet cell
La - lacuna
Muc - mucosa
Peri - perichondrium
dashed line - isogenic group
green arrowheads - cilia

X-7(Rs4)
trachea - x20 objective lens


Adv - adventitia
BV - blood vessels
Car - cartilage plate
Muc - mucosa
N - nerve
SM - smooth muscle
black arrowhead - end of cartilage plate