8 Questions
Where is thick (non-hairy) skin primarily found?
Palms and soles
What is the histological structure of the epidermis?
Stratified squamous keratinized epithelium
Where is the hypodermis located?
Below the dermis
What is the function of the nucleus in a cell?
The nucleus is the cell control center; it directs all the metabolic activities in the cell and plays an important role in heredity and cell division.
How many nuclei does a mononucleated cell have?
A mononucleated cell has one nucleus.
Provide an example of a binucleated cell.
An example of a binucleated cell is some liver cells and top cells of transitional epithelium.
What is the staining characteristic of the nucleus?
The nucleus is basophilic and stains blue with haematoxylin due to its content of nucleic acids.
Where does the nucleus tend to occupy within the cell?
The nucleus tends to occupy the widest part of the cell and may be central, eccentric, peripheral, or basal.
Study Notes
Skin Structure
- Thick (non-hairy) skin is primarily found on the palms of the hands and soles of the feet.
- The epidermis has a histological structure composed of several layers of cells, with the outermost layer being the stratified squamous epithelium.
Subcutaneous Tissue
- The hypodermis is located beneath the dermis, and is also known as subcutaneous tissue.
Cell Structure
- The nucleus is the control center of a cell, responsible for storing genetic information.
- A mononucleated cell has one nucleus.
- An example of a binucleated cell is a hepatocyte, a type of liver cell.
- The nucleus is basophilic, meaning it stains blue with basic dyes.
- The nucleus tends to occupy a central position within the cell, often surrounded by cytoplasm.
Test your knowledge of human skin anatomy with this quiz. Identify and understand the different types of skin, including thick (non-hairy) skin found in specific areas and thin (hairy) skin covering the rest of the body. Explore the histological structure of the epidermis and dermis, and learn about the hypodermis as the subcutaneous connective tissue fascia under the dermis.
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