1. Epiphyseal plate is the site of bone growth.
Figure 23-19: Linear growth of long bones takes place at the epiphyseal plates
Slide 1
Epiphysis
is the end
of a long
bone.
Diaphysis
is the
shaft of a
long bone.
Bone gr
owth
Compact
bone
Dividing
chondrocytes
add length
to bone.
Epiphyseal plate is the
site of bone growth.
Chondrocyte
Chondrocytes
produce
cartilage.
Direction of growth
Old
chondrocytes
disintegrate.
Cartilage
Osteoblasts lay
down bone on
top of cartilage.
Diaphysis
Newly calcified
bone
Osteoblast

2. Epiphyseal plate is the site of bone growth.
Figure 23-19: Linear growth of long bones takes place at the epiphyseal plates
Slide 2
Epiphysis
is the end
of a long
bone.
Diaphysis
is the
shaft of a
long bone.
Epiphyseal plate is the
site of bone growth.
Diaphysis

3. Compact bone Dividing chondrocytes add length to bone.
Figure 23-19: Linear growth of long bones takes place at the epiphyseal plates
Slide 3
Epiphysis
is the end
of a long
bone.
Diaphysis
is the
shaft of a
long bone.
Compact
bone
Dividing
chondrocytes
add length
to bone.
Epiphyseal plate is the
site of bone growth.
Chondrocyte
Diaphysis

4. Epiphyseal plate is the site of bone growth.
Figure 23-19: Linear growth of long bones takes place at the epiphyseal plates
Slide 4
Epiphysis
is the end
of a long
bone.
Diaphysis
is the
shaft of a
long bone.
Compact
bone
Dividing
chondrocytes
add length
to bone.
Epiphyseal plate is the
site of bone growth.
Chondrocyte
Chondrocytes
produce
cartilage.
Cartilage
Diaphysis

5. Epiphyseal plate is the site of bone growth.
Figure 23-19: Linear growth of long bones takes place at the epiphyseal plates
Slide 5
Epiphysis
is the end
of a long
bone.
Diaphysis
is the
shaft of a
long bone.
Compact
bone
Dividing
chondrocytes
add length
to bone.
Epiphyseal plate is the
site of bone growth.
Chondrocyte
Chondrocytes
produce
cartilage.
Old
chondrocytes
disintegrate.
Cartilage
Diaphysis

6. Epiphyseal plate is the site of bone growth.
Figure 23-19: Linear growth of long bones takes place at the epiphyseal plates
Slide 6
Epiphysis
is the end
of a long
bone.
Diaphysis
is the
shaft of a
long bone.
Bone gr
owth
Compact
bone
Dividing
chondrocytes
add length
to bone.
Epiphyseal plate is the
site of bone growth.
Chondrocyte
Chondrocytes
produce
cartilage.
Direction of growth
Old
chondrocytes
disintegrate.
Cartilage
Osteoblasts lay
down bone on
top of cartilage.
Diaphysis
Newly calcified
bone
Osteoblast