Human Tissues. Anatomy and Physiology. Four types of tissues. Epithelial Connective Muscle Nerve. Simple squamous epithelium. "top" view. cells are large, but quite thin have a prominent, protruding nucleus (B). shape is the sunny-side-up fried egg.
Anatomy and Physiology
single layer of cells of different lengths, giving the appearance of a multi layer structure
A. Central canal
C. Osteocyte in lacunae
2. Assist movement
3. Mineral "bank"
4. Blood cell production - hemopoesis (red marrow)
5. Energy storage - adipose tissue (yellow marrow)
Elastic cartilage is contained within the bracket
The chondrocytes (A) are contained in lacunae (C). The matrix (B) contains abundant elastic fibers.These fibers give great flexibility to this tissue.
lacunae that hold the chondrocytes, are not visible.
Tremendous number of elastic fibers (A). The fibroblasts are not visible. The light pink in this tissue is smooth muscle.
Location: large arteries, bronchial tubes
Function: Elastic fibers can stretch l 1/2 times their length and then recoil. These fibers will provide elasticity to tissues
Leukocytes- white blood cells are nucleated, larger than the red blood cells, which are non-nucleated
Notice the striated appearance of the tissue and the elongated cells
Notice the lumen in these images. The lumen is formed by epithelial tissue, but the adjacent layer is smooth muscle, which functions primarily to constrict or dilate the lumen.
Notice the striated appearance of the tissue, the intercalated discs, and the branching cells.
1. cell body (soma) is the factory of the neuron
3. dendrites receive signals from other nerve cells.
4. axon is the main conducting unit of the neuron