Epithelial cells exhibit modifications that adapt them for. Epithelial cells exhibit modifications that adapt them for A contraction B 2022-12-31

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specialized functions.

Epithelial cells are a type of cell that make up the outer layer of tissues in the body. They play a crucial role in protecting and maintaining the integrity of organs and tissues. Epithelial cells exhibit various modifications that allow them to perform specialized functions depending on their location and the specific tissue they are found in.

One common modification that epithelial cells can undergo is the formation of microvilli. Microvilli are small, finger-like projections that protrude from the surface of the cell. They are found on the cells lining the small intestine, where they help to increase the surface area for absorption of nutrients. The presence of microvilli allows the small intestine to absorb a larger volume of nutrients, improving the efficiency of digestion.

Another modification that epithelial cells can undergo is the formation of cilia. Cilia are small, hair-like structures that project from the surface of the cell. They are found on the cells lining the respiratory tract, where they help to move mucus and trapped particles out of the lungs. Cilia work in coordinated waves, sweeping mucus and trapped particles towards the pharynx, where they can be swallowed or expelled.

Epithelial cells can also exhibit modifications in their shape and arrangement. For example, cells in the lining of blood vessels are arranged in a single layer of flat cells, while cells in the kidney are arranged in a series of stacked, layered cells. These modifications allow the cells to perform their specialized functions more effectively. For example, the flat, single layer arrangement of cells in blood vessels allows for efficient exchange of nutrients and waste between the blood and surrounding tissues.

In addition to these modifications, epithelial cells can also produce specialized proteins and enzymes that allow them to perform specific functions. For example, cells in the pancreas produce enzymes that aid in digestion, while cells in the thyroid gland produce hormones that regulate metabolism.

Overall, epithelial cells exhibit a range of modifications that allow them to perform specialized functions within the body. These modifications, such as the formation of microvilli, cilia, and specialized proteins and enzymes, allow epithelial cells to play a crucial role in maintaining the integrity and function of tissues and organs.

Anatomy & Physiology 101 Chapter 4

epithelial cells exhibit modifications that adapt them for

This tissue is probably A epithelium. A cells; cellular; interstitial fluid B interstitial fluid; ducted; cells C interstitial fluid; ducted; interstitial fluid D interstitial fluid; ductless; ducts E ducts; ducted; interstitial fluid Which of the following statements about simple epithelia is false? C They line internal compartments and passageways. The layers do not contain any blood vessels and one surface of the cells is open to the internal cavity of the organ. Tendons; ligaments 73 2891403828 The watery fluid component of blood is called plasma 74 2891403837 The three kinds of formed elements in blood are white cells, red cells, and platelets 75 2891403846 The three major subdivisions of extracellular fluid found in the body are plasma, lymph, and interstitial fluid 76 2891403856 Interstitial fluid that enters a lymphatic vessel is termed lymph 77 2891403865 What cell type contains histamine and heparin? E All of the answers are correct. Because animal intestine is modified for absorption, you would look for a slide that shows a single layer of epithelium lining the cavity.

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Epithelial cells exhibit modifications that adapt them for A contraction B

epithelial cells exhibit modifications that adapt them for

E They are avascular. Answer: A Diff: 1 Skill: Level 1 Questions: Reviewing Facts and Terms 12 Which of the following statements about simple epithelia is false? A mitochondria B cilia C microvilli D junctional complexes E Golgi complexes 7 A type of intercellular junction that stops materials from crossing an epithelium between cells is called a n A tight junction. Question 8 Each of the following is a primary tissue type, except osseous tissue. List three similarities and three differences among them. What does this accomplish? Furthermore, adult chondrocytes are terminally differentiated and can't divide so no more interstitial growth occurs. Neurons are specialized to respond to chemical and electrical signals and communicate by propagating an electric impulse along their axon.

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Ch. 4, 5, 25, 27 Flashcards

epithelial cells exhibit modifications that adapt them for

D 27 2891403275 Which of the labels in Figure 4-1 is very abundant in skin? Question 1 You would find pseudostratified columnar epithelium lining the trachea. Terms : 2891403089 Which of the following is not one of the four main tissue categories? Answer: D Diff: 2 Skill: Level 1 Questions: Reviewing Facts and Terms 8 Epithelium is connected to underlying connective tissue by A keratin. Question 4 The type of epithelium that is found lining internal body compartments and blood vessels is simple squamous epithelium. E bony socket of the eye. Answer: D Diff: 1 Skill: Level 1 Questions: Reviewing Facts and Terms. Similarities: All have contractile proteins; skeletal and cardiac have striations; cardiac and smooth are involuntary; cardiac and smooth are uninucleate.

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6) Epithelial cells that adapted for absorption usually have ________ : 2117134

epithelial cells exhibit modifications that adapt them for

Ground substance 54 2891403622 The three types of connective tissue include connective tissue proper, fluid connective, and supporting connective. B They are characteristic of regions where secretion or absorption occurs. B heart and blood vessels. Along with this, the fat cells that remain after surgery can enlarge by storing more tr iglyceride if the patient continues to overeat. Epithelia and connective 94 2891404062 The loose connective tissue component of a mucous membrane is called the lamina propria 95 2891404071 Which of the following membranes line cavities that communicate with the exterior of the body? Differences: Skeletal is voluntary; cardiac has intercalated discs; smooth is nonstriated; skeletal is multinucleate. Provide a plausible explanation.

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A&P CHAPTER 4 TEST BANK Flashcards

epithelial cells exhibit modifications that adapt them for

Such strong intercellular connections are called A gap junctions. What type of cartilage is affected? This limits nutrient and oxygen delivery. Such strong intercellular connections are called A gap junctions. C a basement membrane. C 26 2891403266 Which of the labels in Figure 4-1 is very abundant in cardiac muscle? E any of the above Answer: A Diff: 1 Skill: Level 1 Questions: Reviewing Facts and Terms 7 Dead skin cells are shed in thin sheets because they are held together by Ȉ spots Ȉ of proteoglycan reinforced by intermediate filaments. B 25 2891403257 Which of the labels in Figure 4-1 indicates an adhesion belt? Answer: C Diff: 1 Skill: Level 1 Questions: Reviewing Facts and Terms 9 The basic shapes of epithelial cells include all of the following, except A oval.


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Tissue blog.sigma-systems.com

epithelial cells exhibit modifications that adapt them for

Bone injuries heal relatively quickly because of the good nutrient supply by way of nearby blood vessels and the canaliculi, whereas cartilage is supplied nutrients via diffusion from the outside, a far slower process. A They afford little mechanical protection. A They afford little mechanical protection. D superficial fascia between skin and muscle. How would you decide which slide is which? You volunteer to help her sort them out. Adipose; loose 67 2891403741 Antibodies are produced by plasma cells 68 2891403751 The dominant fiber type in most dense connective tissue is collagen 69 2891403760 Each of the following is an example of dense connective tissue except areolar connective tissue 70 2891403769 Tissues that provide strength and support for areas subjected to stresses from many directions are dense irregular connective tissues 71 2891403778 What type of cell makes up almost half the volume of blood? C They line internal compartments and passageways.

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epithelial cells exhibit modifications that adapt them for

E both A and B Answer: A Diff: 1 Skill: Level 1 Questions: Reviewing Facts and Terms 10 Mesothelium is to the body cavities as endothelium is to the A kidneys. She does not understand her weight gain because adipocytes are incapable of dividing. . Both avascularity and lack of cell division combine to minimize cartilage healing. Question 3 A transitional epithelium would be found lining the urinary bladder.

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epithelial cells exhibit modifications that adapt them for

Neuroglia are a diverse group of cell types within neural tissue that support, nourish, and protect neurons. One is a slide of an intestine; the other is a slide of an esophagus. It is triggered by histamine and caused by increased endothelial permeability 112 2891404229 114 All of the following are part of the inflammation response except production of collagenous framework 113 2891404239 Explain why sunburned skin peels rather than being shed as a powder. Such strong intercellular connections are called desmosomes 20 2891403209 Epithelium is connected to underlying connective tissue by a basal lamina 21 2891403218 The junction type that lets neighboring cells exchange small molecules is the gap junction 22 2891403227 In stratified epithelia adapted to resist mechanical forces, which of the following types of cell-to-cell junctions are especially abundant? This tissue would most likely have come from the A inner wall of a blood vessel. Microscopic examination of a tissue reveals a loose framework of fibers embedded in a large volume of fluid ground substance and adipocytes and mast cells fibers. D a reticular lamina. The presence of DNA, RNA, and membrane components suggest that the cell was destroyed during the process of secretion.

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epithelial cells exhibit modifications that adapt them for

Question 2 The basic shapes of epithelial cells include all of the following, except stratified. A 24 2891403248 26 Which of the labels in Figure 4-1 indicates a tight junction? Since air must diffuse from the alveoli into the bloodstream, you would expect to find very thin cells, or squamous epithelium. D They cover surfaces subjected to mechanical or chemical stress. The cells have one free surface and lack blood vessels. D They cover surfaces subjected to mechanical or chemical stress.

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