Question

I WILL DONATE MY 60 POINTS TO THE PERSON GIVING RIGHT ANSWER...give examples of discoid, polygonal, columnar, cuboidal, amoeboid, thread like or irregular shapes of cells examples...Please..I will mark as BRAINLIST ANSWER..​

Answer 1

Spherical Cells. They are round in shape. Example - Red Blood Cells in Humans.

Spindle Cell. They are elongated like a spindle. Example - Muscle Cell in Humans.

Elongated Cell. They are shaped like a branch of a tree. ...

What is shape of amoeba? Amoeba is a single celled organism.

Answer 2

Answer:

Heya Here's the required Answer mate

Squamous Epithelia

• Squamous epithelial cells are generally round, flat, and have a small, centrally located nucleus. The cell outline is slightly irregular, and cells fit together to form a covering or lining. When the cells are arranged in a single layer (simple epithelia), they facilitate diffusion in tissues, such as the areas of gas exchange in the lungs and the exchange of nutrients and waste at blood capillaries.

Cuboidal Epithelia

• Cuboidal epithelial cells, shown in Figure 2, are cube-shaped with a single, central nucleus. They are most commonly found in a single layer representing a simple epithelia in glandular tissues throughout the body where they prepare and secrete glandular material. They are also found in the walls of tubules and in the ducts of the kidney and liver.

Columnar Epithelia

• Columnar epithelial cells are taller than they are wide: they resemble a stack of columns in an epithelial layer, and are most commonly found in a single-layer arrangement. The nuclei of columnar epithelial cells in the digestive tract appear to be lined up at the base of the cells, as illustrated in Figure 3. These cells absorb material from the lumen of the digestive tract and prepare it for entry into the body through the circulatory and lymphatic systems.

Transitional Epithelia

• Transitional or uroepithelial cells appear only in the urinary system, primarily in the bladder and ureter. These cells are arranged in a stratified layer, but they have the capability of appearing to pile up on top of each other in a relaxed, empty bladder, as illustrated in Figure 5. As the urinary bladder fills, the epithelial layer unfolds and expands to hold the volume of urine introduced into it. As the bladder fills, it expands and the lining becomes thinner. In other words, the tissue transitions from thick to thin.

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