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Dinah Marie Cabrera posted an update in the group
Histology Art – F (2022) 1 year ago
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(PDF) Assessment of Quality and Risks Exposure in Histopathology DepartmentPDF | The role of histopathology department in establishing a correct and final diagnosis is essential, this leading to an effective treatment for the… | Find, read and cite all the research you need on ResearchGate
A weakened immune system is incapable of defending itself against invading microorganisms. As a result, we become sick. When our body is unable to combat an infection efficiently, the sickness spreads. Without appropriate medication, we risk becoming even more ill or possibly dying.
The video below discusses the warning signals of a weakened immune system. These symptoms are frequently brought on by poor daily practices. Recognizing these symptoms enables us to concentrate on building our immunity in order to prevent becoming ill frequently.
Did you know that exercising is one of the best ways to build up your immunity and immune response? Exercising is one approach to detoxify the lymphatic system and provide your body with the energy to battle the millions of germs that surround you on a daily basis. “What are these exercises?”, you might ask. Watch the video below to find out!
Lisa Turner (2021) stated this on her article, “We’ve never been more focused on immunity. But despite our best intentions, some common daily habits may be undermining our immunity.” It turns out that there are a lot of activities and daily habits that can weaken our immunity. Turner (2021) lists all of those activities and daily habits as well as some solutions on how to increase our immunity on her article found below:
10 Sneaky Immune Saboteurs—and How to Fix Them – Better NutritionWe’ve never been more focused on immunity. But despite our best intentions, some common daily habits may be undermining our immunity.
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10 HISTOLOGY TISSUES ILLUSTRATION (2)
SMOOTH MUSCLE TISSUE
1. Nucleus
2. Connective Tissue
3. Smooth Muscle Cell
In the illustration, the longitudinal section of smooth muscle displays long fusiform smooth muscle cells with centrally located, elongated nuclei. Since the muscle fibers are arranged in staggered arrays, they can be packed very closely, with only a limited amount of intervening connective tissue. Each smooth muscle cell is sur rounded by a basal lamina and reticular fibers, neither of which is evident in this figure. Capillaries are housed in the connective tissue separating bundles of smooth muscle fibers.
1. Intercalated Discs
2. Branching Fiber
3. Cardiac Myocyte
4. Centrally placed oval nuclei of cardiac myocyte
5. Fibroblasts
Histologically, cardiac muscle appears striated like the skeletal muscle due to arrangement of contractile proteins. It also has several unique structural characteristics:
• The fibers of cardiac muscle are not arranged in a simple parallel fashion. Instead, they branch at the ends to form connections with multiple adjacent cells, resulting in a complex, three-dimensional network.
• Cardiac muscle fibers are long cylindrical cells with one or two nuclei. The nuclei are centrally situated like that of smooth muscle.
• Cardiac muscle sarcoplasm has a great number of mitochondria to meet the energy demands.
• Similar to the skeletal muscle, cardiac muscle cells have an invaginating network
1. Myofibrils
2. Nucleus
3. Z disc
4. Sarcomere
5. H zone
6. Connective Tissue
7. A band
8. I band
Each muscle cell is defined by a sarcolemma and contains many nuclei along its length. The nuclei are displaced peripherally within a cross section of the sarcoplasm while a large number of longitudinal myofibrils, groups of arranged contractile proteins, occupy most of the center space. The myofibril contains several important histological landmarks:
• The myofibril is composed of alternating bands. The I-bands (isotropic in polarized light) appear light in color and the A-bands (anisotropic in polarized light) appear dark in color. The alternating pattern of these bands results in the striated appearance of skeletal muscle.
• The Z-lines (Zwischenschieben) bisect the I-bands.
• A light band called the H-band (Heller) sits within each A-band.
• The M-line (Mittelschiebe) bisects each A-band (and, in doing so, bisects each H-band).
1. Dendrites
2. Cell Body
3. Glial cells
4. Axon
1. Isogenous groups of chondrocytes
2. Chondrocyte
3. Interterritorial (Matrix)
4. Territorial (Matrix)
5. Capsular (Matrix)
6. Lacuna
1. Collagen Fibers
2. Nuclei of fibroblast
1. Elastic Fibers
2. Matrix
3. Chondrocytes in lacunae
1. Row of chondrocytes embedded in small quantity of matrix
2. Bundles of collagen fibers
1. Superficial umbrella-shaped cells
2. Transitional Epithelium (several layers of round nuclei)
1. Collagen Fibers
2. Elastic Fibers
3. Fibroblast
4. Lymphocyte