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2 The simple colummar epitbeliom shat form absorprive cells of ihe digestive mact have A) dense microvilli B) a rich vascular supply C) fibroblasts D) cilia 8) Psewdostrarified colurmnar epirkeliom cifiated variety A) lines most of the respiratory tract B) aids in digestion C) possesses no goblet cells D) is not an epithelial classification 9) Which of she following is a single-celled layer of epirkelium that forms the lining of serous membrames? A) pseudostratified columnar ) simple columnar C) simple squamous D) simple cuboidal 10) Which statement best describes connective tissue? A) usually contains a large amount of matrix B) typically arranged in a single layer of cells C) primarily concerned with secretion D) usually lines a body cavity II) Connective tissue matrix is composed of A) cells and fibers B) fibers and ground substance C) ground substance and cells D) all organic compounds 12) Cell type not found in areolar connective tissue. A) chondrocytes B) fibroblasts C) macrophages D) mast cells

Explanation / Answer

Ans7--a is correct that is dense microvilli.

Simple columnar epithelium that is microvilli or enterocytes

These cell are predominant epithelial cell that lining the lumen of the small intestine and colon.

These cell are specialised for absorption of nutrients like ions,water,sugar,lipid reabsorption of bile salt etc.across the plasma membrane and export the same nutrient across the basal plasma membrane.

Microvilli also increases the surface area of the small intestine that causes increases absorption of nutrients..

Ans8--a is correct that is lines most of the respiratory tract

Pseudostratified columnar ciliated epithelium found in trachaeaand upper respiratory tract.these cell help trap and transport particle brought in throghththe nasal passage..

Ans9---c is correct that is simple squamous

Simple squamous epithelium lines area of the body where subject to abrasion..means where wear and tear occurs ex..oesophagous sole of feet vagina...

Ans10---a is correct that large amount of matrix

Connective tissue have 3 main component

1-cells

2-fibers(elastic and collagenous fiber)

3-extracellular matrix(ground substances)

In connective tissue cell scattered throughout in ground matrix

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