Skeletal Muscle striated and Multinucleate
Smooth Muscle
Smooth Muscle Uninucleate
Cardiac Muscle Intercalated discs
More Cardiac Muscles
Wednesday, April 9, 2008
Muscle Tissue Histology
Skeletal Muscle Striated
Skeletal Muscle striated and Multinucleate
Smooth Muscle
Smooth Muscle Uninucleate
Cardiac Muscle Intercalated discs
More Cardiac Muscles
Skeletal Muscle striated and Multinucleate
Smooth Muscle
Smooth Muscle Uninucleate
Cardiac Muscle Intercalated discs
More Cardiac Muscles
Connective Tissues Blood and Bone
Blood Features to know: Lymphocytes, Erythrocytes and Platelets
Lymphocytes
erythrocytes- blood cells
Bone Features to know:
Osteon
Oseteocytes
Lacunae
Canaliculi
Haversion Canal
Volkmann's Canal
Lymphocytes
erythrocytes- blood cells
Bone Features to know:
Osteon
Oseteocytes
Lacunae
Canaliculi
Haversion Canal
Volkmann's Canal
Tuesday, April 8, 2008
Anatomy 302 Begins with Histology
There are various types of tissue.
Epithelial Tissue:
Simple Squamous- this photo shows Alveoli of the lungs
Stratified Squamous- Keratinized in skin
Pseudostratified Ciliated Columnar Epithelium
Simple Cuboidal Epithelium-
Simple Columnar Epithelium-
Transitional Epithelium-
CT- Connective Tissue
Areolar CT
This image of areolar CT represents a whole mount (NOT a section) of mesentery (the tissue which binds together the loops of intestine within the peritoneal cavity.
This view looks through the entire mesentery, which is a sandwich of mesothelium on front and back surfaces with loose connective tissue and blood vessels in between.
The two most common cell types are mesothelial cells and fibroblasts.
The large, pale, oval nuclei belong to mesothelial cells which form the mesothelial surfaces on the front and back of the mesentery.
The smaller, darker, more elongate nuclei belong to fibroblasts, which manufacture and secrete the molecules which form the extracellular matrix.
Macrophages, mast cells, and lymphocytes may also be found in such preparations, but none are clearly identifiable in this image.
The matrix consists of unstained ground substance through which pass fibers of made of collagen and elastin.
Elastic fibers are thin, fairly uniform in diameter, and frequently branched. The are normally visible only if specially stained (as they have been in this specimen).
Collagen fibers vary in thickness and are eosinophilic (pink, in this stain).
CT- Elastic Fibers
CT- Reticular CT silver stain only
CT- Hyaline Cartilage Chondrocytes in Lacunae
CT- Adipose fat storage
Epithelial Tissue:
Simple Squamous- this photo shows Alveoli of the lungs
Stratified Squamous- Keratinized in skin
Pseudostratified Ciliated Columnar Epithelium
Simple Cuboidal Epithelium-
Simple Columnar Epithelium-
Transitional Epithelium-
CT- Connective Tissue
Areolar CT
This image of areolar CT represents a whole mount (NOT a section) of mesentery (the tissue which binds together the loops of intestine within the peritoneal cavity.
This view looks through the entire mesentery, which is a sandwich of mesothelium on front and back surfaces with loose connective tissue and blood vessels in between.
The two most common cell types are mesothelial cells and fibroblasts.
The large, pale, oval nuclei belong to mesothelial cells which form the mesothelial surfaces on the front and back of the mesentery.
The smaller, darker, more elongate nuclei belong to fibroblasts, which manufacture and secrete the molecules which form the extracellular matrix.
Macrophages, mast cells, and lymphocytes may also be found in such preparations, but none are clearly identifiable in this image.
The matrix consists of unstained ground substance through which pass fibers of made of collagen and elastin.
Elastic fibers are thin, fairly uniform in diameter, and frequently branched. The are normally visible only if specially stained (as they have been in this specimen).
Collagen fibers vary in thickness and are eosinophilic (pink, in this stain).
CT- Elastic Fibers
CT- Reticular CT silver stain only
CT- Hyaline Cartilage Chondrocytes in Lacunae
CT- Adipose fat storage
