Which of the following cell types could be found in the dermis?
monocytes, reticulocytes, and osteocytes
osteoblasts, osteoclasts, and epithelial cells
fibroblasts, macrophages, and mast cells
goblet cells, parietal cells, and chondrocytes
The Correct Answer is C
A. monocytes, reticulocytes, and osteocytes: Monocytes circulate in the blood, reticulocytes are immature red blood cells, and osteocytes are found in bone tissue. None of these are resident cells in the dermis.
B. osteoblasts, osteoclasts, and epithelial cells: Osteoblasts and osteoclasts are involved in bone formation and resorption, and epithelial cells form layers lining surfaces. These cells are not characteristic of dermal connective tissue.
C. fibroblasts, macrophages, and mast cells: Fibroblasts produce collagen and extracellular matrix, macrophages perform phagocytosis, and mast cells release histamine during inflammation. All are common resident cells in the dermis, contributing to structure, immunity, and tissue repair.
D. goblet cells, parietal cells, and chondrocytes: Goblet cells secrete mucus in epithelial linings, parietal cells are found in the stomach lining, and chondrocytes are located in cartilage. These cell types are not present in the dermis.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is A
Explanation
A. ciliated simple columnar epithelium:The uterine (fallopian) tubes are lined with ciliated simple columnar epithelium. The cilia help move the ovum from the ovary toward the uterus, while secretory cells provide nourishment for the ovum and early embryo.
B. smooth MT:Smooth muscle tissue is present in the walls of the uterine tubes to aid peristaltic movement, but it does not line the lumen. The lining is provided by epithelial tissue, not muscle tissue.
C. simple cuboidal epithelium:Simple cuboidal cells are commonly found in glandular tissues and kidney tubules, where they function in secretion and absorption. They do not have the cilia required for egg transport in the uterine tubes.
D. stratified squamous epithelium:Stratified squamous epithelium is specialized for protection in areas exposed to friction, such as the skin and vaginal canal. It is not suitable for the transport and nourishment functions of the uterine tubes.
Correct Answer is A
Explanation
A. Holocrine:Holocrine glands release their secretions by the disintegration of entire cells, which become part of the secretion. Sebaceous glands in the skin are an example, producing oily secretions that include cell fragments.
B. Merocrine:Merocrine glands secrete their products via exocytosis without the loss of cellular material. Sweat glands are an example, and their secretion does not contain disintegrated cells.
C. Mucous:Mucous glands primarily secrete mucus, a viscous fluid rich in glycoproteins, but this secretion is not composed of disintegrated cells.
D. Exocrine:Exocrine glands are a broad category of glands that secrete products onto epithelial surfaces through ducts. They include holocrine, merocrine, and apocrine types, so this term does not specifically indicate secretion by cell disintegration.
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