I have a duct. My job is to secrete. My shape is determined by the arrangement of a layer of cuboidal cells that some people describe as “a tree of little sacs or pockets.” As part of my job, the apical membranes of my cells pinch off in order to release the cells’ secretions. This is a good thing, because this means that my secretions are also rich in the lipids and proteins that make up of the membranes. It is important for my secretions to be nutrient-rich, because they are consumed by the neonates of my body! What am I? A. simple squamous epithelium B. glandular endocrine epithelium C. glandular exocrine epithelium D. loose fibrous connective tissue What it is a neonate? Name and describe the three mechanisms of cellular secretion. - - - Which specific type of gland is being described above? _____________________________ Exocrine secretions are released to surface of ____________________________ tissue. Endocrine secretions are released into the ________________________________ fluids and diffuse into the ________________________.
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Which of the following would be of most importance to unicellular exocrine cells and other glandular epithelium cells secreting proteins by exocytosis? A. Lysosomes B. Gap junctions C. Nuclear envelope D. Golgi apparatus Which of the following cell types is NOT found in areolar connective tissue? A. Fibroblasts B. Osteoblasts C. Fat cells D. Macrophages. The type of epithelial membrane that makes up the peritoneum is named ________. A. serous B. mucous C. cutaneous (=skin) D. outer mitochondrial Which tissue type would likely function to protect organs, like the kidneys and the eyes, against mechanical shocks? A. Dense regular B. Reticular C. Adipose D. Muscle
Adi S.
Glandular epithelium matching. A) Endocrine B) Apocrine C) Holocrine D) Merocrine 1) Mammary glands are examples of this type of gland. 2) Secretions from this gland contain cell fragments. 3) Secretions from this gland contain just fluids. 4) Salivary glands are an example of this type of gland. 5) Secretions from this gland are released into the bloodstream. 6) Entire cells are released when this gland secretes. 7) Sebaceous glands in the skin are an example of this type of gland. 8) Which one of these is NOT commonly found in most connective tissues? a) fibroblasts b) platelets c) plasma cells d) macrophages e) matrix f) mast cells 9) Which statement is FALSE regarding dense connective tissue? a) It contains a large amount of collagen. b) It contains a large amount of elastin. c) It allows for very little stretching. d) It is the main component of tendons & ligaments. e) It is found within the skin. f) Structures made of DCT appear white. 10) Which sentence is written properly? a) This epithelial tissue is simple. b) This epithelium tissue is simple. c) These epithelial are simple. d) This tissue is simple epithelial. e) These are simple epithelium tissues. f) This is simple epithelia tissue. Membrane matching. A) Serous Membrane B) Mucous Membrane C) Statement applies to both types 11) It lines cavities that are open to the outside. 12) It lines the inside of the digestive tract. 13) It lines cavities that are not open to the outside. 14) "Visceral Pericardium" is an example. 15) "Parietal Pleura" is an example. 16) This is covered in slimy mucus.
Sri K.
EXERCISE FOUR Tissues 15. A group of similar cells that have a similar embryological origin and operate together to perform a specialized activity is called a(n) (a) organ (b) tissue (c) system (d) organ system 16. Which statement best describes covering and lining epithelium? (a) It is always arranged in a single layer of cells. (b) It contains large amounts of intercellular substance. (c) It has an abundant blood supply. (d) Its free surface is exposed to the exterior of the body or to the interior of a hollow structure. 17. Which statement best describes connective tissue? (a) It usually contains a large amount of matrix. (b) It's always arranged in a single layer of cells. (c) It's primarily concerned with secretion. (d) It usually lines a body cavity. 18. A gland (a) is either exocrine or endocrine (b) may be single celled or multicellular (c) consists of epithelial tissue (d) is described by all of the preceding statements. 19. Which of the following statements is not correct? (a) Simple squamous epithelium lines blood vessels. (b) Endothelium is composed of cuboidal cells. (c) Ciliated epithelium is found in the respiratory system. (d) Transitional epithelium is found in the urinary bladder. PART 2 Completion 20. Cells found in epithelium that secrete mucus are called cells. 21. A type of epithelium that appears to consist of several layers but actually contains only one layer of cells is. 22. The cell in connective tissue that forms new fibers is the. 23. Histamine, a substance that dilates small blood vessels during inflammation, is secreted by cells. 24. Cartilage cells called are found in lacunae. 25. The simple squamous epithelium of a serous membrane that covers viscera is called. 26. The tissue that provides insulation, support, and protection, and serves as a food reserve is. 27. tissue forms the stroma of organs such as the liver and spleen. 28. The cartilage that provides support for the larynx and external ear is. 29. The ground substance that helps lubricate joints and binds cells together is. 30. Ductless glands that secrete hormones are called glands. 31. Multicellular exocrine glands that contain branching ducts are classified as glands.
Madhur L.
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