SIMPLE SQUAMOUS EPITHELIUM a. What is the location and shape of nucleus within cell? Round, centrally located nucleus  Centrally

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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SIMPLE SQUAMOUS EPITHELIUM

a. What is the location and shape of nucleus within cell?

  • Round, centrally located nucleus 
  • Centrally located nucleus, flattened and oval or spherical
  • oval nuclei near base of cells 
  • appears to have several layers because nuclei of cells are at various levels

b. When this tissue type lines the cardiovascular and lymphatic system, it is called what?

  • endothelium
  • mesothelium

c. When this tissue forms the layer of serous membranes it is called what?

  • mesothelium
  • endothelium

d. What other organs contain this tissue type?

  • epididymis, ducts of glands, male urethra
  • surface of ovaries and lens of eye; retina of eye; kidney tubules, ducts of glands
  • air sacs of lungs, glomerular, capsule of kidneys, inner surface of tympanic membrane
  • GI tracts, ducts of glands, gallbladder

e. What is the function of this tissue?

  • Protects against abrasion, water loss, UV radiation, foreign invasion, defense against microbes
  • filtration or diffusion, and site of secretion in serous membranes
  • secretion and absorption

d. True or False: This tissue type is commonly found in body areas subject to wear and tear? 

  • true 
  • false 
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