Module 1: Tissues I - Epithelial and Connective

Question 1

epithelial tissue functions

Answer 1

protection, selective permeability (diffusion and absorption), secretion, sensation, and surface parallel transport

Question 2

epithelial tissue: protection

Answer 2

epithelial tissues provide the body’s first line of protection from physical, chemical, and biological wear and tear

Question 3

epithelial tissue: selective permeability

Answer 3

the cells of an epithelium act as gatekeepers of the body controlling permeability and allowing selective transfer of materials across a physical barrier. all substances that enter the body must cross an epithelium

Question 4

epithelial tissue: selective permeability DIFFUSION

Answer 4

selective, simple transport of substances through a thin layer of tissue

Question 5

epithelial tissue: selective permeability ABSORPTION (transcellular transport)

Answer 5

absorption of substances through the cell, where it is processed before being released into the blood and/or underlying tissue

Question 6

epithelial tissue: secretion

Answer 6

many epithelial cells are capable of producing and secreting specific chemical compounds onto their apical surfaces

Question 7

epithelial tissue: sensation

Answer 7

specialized epithelia can detect light, taste, sound, smell, and hearing

Question 8

epithelial tissue: surface parallel transport

Answer 8

transport of substances across the free surface of the epithelium.