Basal lamina
Cells of the stratum basale rest on a basal lamina, securely anchored to it by numerous hemidesmosomes into which keratin filaments insert. The basal lamina is composed of a lamina lucida and a lamina densa, which rests, in turn, on the reticular lamina of the dermis. Fibrils from lamina densa anchor the basal lamina to the reticular lamina. The basal lamina together with the reticular lamina constitute the basement membrane. 35,000x
Stratum basale
Cells of the stratum basale rest on a basal lamina, securely anchored to it by numerous hemidesmosomes into which keratin filaments insert. The basal lamina is composed of a lamina lucida and a lamina densa, which rests, in turn, on the reticular lamina of the dermis. Fibrils from lamina densa anchor the basal lamina to the reticular lamina. The basal lamina together with the reticular lamina constitute the basement membrane. 35,000x
- Hemidesmosomes
Cells of the stratum basale rest on a basal lamina, securely anchored to it by numerous hemidesmosomes into which keratin filaments insert. The basal lamina is composed of a lamina lucida and a lamina densa, which rests, in turn, on the reticular lamina of the dermis. Fibrils from lamina densa anchor the basal lamina to the reticular lamina. The basal lamina together with the reticular lamina constitute the basement membrane. 35,000x
- Keratin filaments
Cells of the stratum basale rest on a basal lamina, securely anchored to it by numerous hemidesmosomes into which keratin filaments insert. The basal lamina is composed of a lamina lucida and a lamina densa, which rests, in turn, on the reticular lamina of the dermis. Fibrils from lamina densa anchor the basal lamina to the reticular lamina. The basal lamina together with the reticular lamina constitute the basement membrane. 35,000x
Basal lamina
Cells of the stratum basale rest on a basal lamina, securely anchored to it by numerous hemidesmosomes into which keratin filaments insert. The basal lamina is composed of a lamina lucida and a lamina densa, which rests, in turn, on the reticular lamina of the dermis. Fibrils from lamina densa anchor the basal lamina to the reticular lamina. The basal lamina together with the reticular lamina constitute the basement membrane. 35,000x
- Lamina lucida >
Additional studies have shown that the presence of the lamina lucida results from a fixation-shrinkage artifact of the tissue. The clear space does not exist in life and thus the lamina densa lies directly adjacent to the plasma membrane.
- Lamina densa
Cells of the stratum basale rest on a basal lamina, securely anchored to it by numerous hemidesmosomes into which keratin filaments insert. The basal lamina is composed of a lamina lucida and a lamina densa, which rests, in turn, on the reticular lamina of the dermis. Fibrils from lamina densa anchor the basal lamina to the reticular lamina. The basal lamina together with the reticular lamina constitute the basement membrane. 35,000x
- Anchoring fibrils
Cells of the stratum basale rest on a basal lamina, securely anchored to it by numerous hemidesmosomes into which keratin filaments insert. The basal lamina is composed of a lamina lucida and a lamina densa, which rests, in turn, on the reticular lamina of the dermis. Fibrils from lamina densa anchor the basal lamina to the reticular lamina. The basal lamina together with the reticular lamina constitute the basement membrane. 35,000x
Reticular lamina
Cells of the stratum basale rest on a basal lamina, securely anchored to it by numerous hemidesmosomes into which keratin filaments insert. The basal lamina is composed of a lamina lucida and a lamina densa, which rests, in turn, on the reticular lamina of the dermis. Fibrils from lamina densa anchor the basal lamina to the reticular lamina. The basal lamina together with the reticular lamina constitute the basement membrane. 35,000x