goblet cell
Simple squamous-single layer of thin, flat, many-sided cells each with a central nucleus. It lines internal cavities, the heart and all the blood vessels. Also lines parts of the urinary, respiratory, and male reproductive tracts.Stratified squamous-consists of many layers of cells. Innermost layer produces cells that are first cuboidal or columnar in shape, but as cells push toward the surface, they become flattened and begin to accumulate a protein called keratin and eventually die. Keratin makes the outer layer of epidermis tough, protective, and able to repel water. The linings of the mouth, throat, anal canal, and vagina are examples of stratified epithelium. The outermost layer of cells surrounding the cavity remains soft, moist, and alive.Simple cuboidal-single layer of cube-shaped cells, each with a central nucleus. Found in tubules of the kidney and in the ducts of many glands, where it has a protective function. It also occurs in the secretory portions of some glands, where the tissue produces and releases secretions.Simple columnar-single layer of tall, cylindrical cells, each with a nucleus near the base. This tissue, which lines the digestive tract from the stomach to the anus, protects, secretes, and allows absorption of nutrients.Pseudostratified ciliated columnar-appears to be layered, though actually all cells touch the basement membrane. Many cilia are located on the free end of each cell. In the human trachea, the cilia wave back and forth, moving mucus and debris up toward the throat so that it cannot enter the lungs. Smoking destroys these cilia, but they will grow back if smoking is discontinued.
The stomach produces hydrochloric acid through specialized cells called parietal cells.
The reproductive system is responsible for producing specialized cells (sperm in males and eggs in females) that are required for sexual reproduction and to create new human offspring.
No, humans do not have a specialized organ like a poison sac that produces toxic substances. However, certain organs like the liver can detoxify harmful compounds.
Haploid cells are produced through the process of meiosis, which is a type of cell division that reduces the chromosome number by half. Meiosis occurs in specialized cells called germ cells, which are found in organisms that reproduce sexually.
There are tiny little hairs within various body systems such as the respiratory system, and other systems. These little hairs are called cilia. They are responsible for clearing out debris and other foreign invaders. The cilia is what produces the actions such as coughing, or sneezing etc.
Simple squamous-single layer of thin, flat, many-sided cells each with a central nucleus. It lines internal cavities, the heart and all the blood vessels. Also lines parts of the urinary, respiratory, and male reproductive tracts.Stratified squamous-consists of many layers of cells. Innermost layer produces cells that are first cuboidal or columnar in shape, but as cells push toward the surface, they become flattened and begin to accumulate a protein called keratin and eventually die. Keratin makes the outer layer of epidermis tough, protective, and able to repel water. The linings of the mouth, throat, anal canal, and vagina are examples of stratified epithelium. The outermost layer of cells surrounding the cavity remains soft, moist, and alive.Simple cuboidal-single layer of cube-shaped cells, each with a central nucleus. Found in tubules of the kidney and in the ducts of many glands, where it has a protective function. It also occurs in the secretory portions of some glands, where the tissue produces and releases secretions.Simple columnar-single layer of tall, cylindrical cells, each with a nucleus near the base. This tissue, which lines the digestive tract from the stomach to the anus, protects, secretes, and allows absorption of nutrients.Pseudostratified ciliated columnar-appears to be layered, though actually all cells touch the basement membrane. Many cilia are located on the free end of each cell. In the human trachea, the cilia wave back and forth, moving mucus and debris up toward the throat so that it cannot enter the lungs. Smoking destroys these cilia, but they will grow back if smoking is discontinued.
Glandular epithelium produces hormones.
A simple cuboidal epithelium absorbs and secretes. It produces mucous. It is found in the liver, thyroid, mammary, and salivary glands.
The nasal passage is lined by a mucous membrane called the respiratory epithelium, which contains specialized cells that help trap particles and filter the air. This membrane also produces mucus to moisten and protect the nasal passages.
specialized cells
Gonads
The stomach produces hydrochloric acid through specialized cells called parietal cells.
When a parent produces reproductive cells, sex cells undergo meiosis a process in which these specialized cells duplicate.
It's basically a highly specialized transformer.
Meiosis
vibrio cholerae produces cholera toxin which is an enterotoxin, whose action on the mucosal epithelium lining of the small intestine is responsible for the massive diarrhoea of the disease.