The Definition of What a Tissue is

L7: Exam- Requires Respondus LockDown Browser

Due No due date

Points 40

Questions 14

Time Limit 60 Minutes

Requires Respondus LockDown Browser 

Question 1

2.5 / 2.5 pts

Give the definition of what a tissue is.

Your Answer:

A tissue is an asemble of similar cells from a same origin; while working together carry out or perform specific and important function.

A tissue is a grouping of similar cells that work together to perform a specific function.

Question 2

2.5 / 2.5 pts

Which of the following statements is FALSE regarding the four primary classes of tissue in the body?

Epithelial tissue functions in secretion and protection.

Correct!

Connective tissue functions in absorption.

The correct answer is that connective tissue functions to bind tissues and anchor organs.

Nervous tissue functions in communication throughout the body.

Muscular tissue functions in movement.

Question 3

2.5 / 2.5 pts

Tissue matrix or extracellular material, is made up of two components. What are these two components?

Your Answer:

The components are: Ground substance and protein fibers.

Matrix is made up of ground substance and protein fibers.

Question 4

2.5 / 2.5 pts

Which of the following germ layers gives rise to epithelial tissue?

  1. Ectoderm
  1. Mesoderm
  1. Endoderm

Correct!

  1. a. and c.
  1. b. and c.
  1. All of the above

Question 5

2.5 / 2.5 pts

What are the ways epithelial tissue is classified?

Your Answer:

It is clasified by:

  1. cell type
  2. cell shape,
  3. cell arrangement

Epithelial tissue is classified by cell type, cell shape, and cell arrangement.

Question 6

2.5 / 2.5 pts

Which of the following statements is FALSE regarding the structure of epithelial tissue?

Epithelial tissue has a direct nerve supply.

Epithelial tissue draws its blood supply from the connective tissue.

Epithelial tissue is composed of a large cellular content with a small amount of matrix.

Correct!

All of the above statements are true.

Question 7

2.5 / 2.5 pts

  1. B.  C. 

Which of the above images is an example of simple cuboidal epithelial tissue?

Your Answer:

It is: A

A.

Question 8

2.5 / 2.5 pts

What type of epithelial tissue do you see in the above image? Explain how you know what type it is.

Your Answer:

In the above image the type of epithelial tissue I see is called pseudostratified epithelial tissue. The all cells are attched to the underlying basement membrane, however, the nuclei are different in hight, while few cells do reach the free surface.

The above image depicts pseudostratified epithelial tissue. All cells touch the basement membrane, but not all cells reach the apical or free surface.

Question 9

4 / 4 pts

Match the following epithelial tissue types with its location in the body.

Correct!

Simple squamous epithelium

             

Correct!

Simple cuboidal epithelium

             

Correct!

Simple columnar epithelium

             

Correct!

Pseudostratified epithelium

             

Question 10

4 / 4 pts

Match the following epithelial tissue types with their function.

Correct!

Simple squamous epithelium

             

Correct!

Simple cuboidal epithelium

             

Correct!

Simple columnar epithelium

             

Correct!

Pseudostratified epithelium

             

Question 11

2 / 2 pts

Explain the function of cilia in pseudostratified epithelium. Note: to receive full credit you must give a specific function based upon location of pseudostratified epithelium within the body.

Your Answer:

The function of cilia in psudostratified epithielium is very important, wheras they can be easly found along the ( lining) repiratory tract and male repreductive tract. From this perspective cilia contribute toward keeping the airways clear of mucus and dirt out of the lungs, allowing us to breath without irritation; cillia as well help propel sperm.

Pseudostratified epithelium can be found in the respiratory tract as well as the male reproductive tract. Cilia assists in movement of substances. In the respiratory tract cilia would propel mucus, and in the male reproductive tract cilia would propel sperm. (either example are acceptable answers.)

Question 12

4 / 4 pts

Match the following epithelial tissue types with its location in the body.

Correct!

Stratified squamous epithelium

             

Correct!

Stratified cuboidal epithelium

             

Correct!

Stratified columnar epithelium

             

Correct!

Transitional epithelium

             

Question 13

2 / 2 pts

Would non-keratinized stratified squamous epithelium prevent water loss? Explain why or why not.

Your Answer:

The non-keratinized stratified squamous epithelium prevent would NOT prevent water loss through the skin, due to the reason  of the outer layer of compact dead cells without nuclei at the surface and water repellant function.

Non-keratinized stratified squamous epithelium would not prevent water loss because it lacks the dead layer of compact cells and the water repellent glycolipid which keratinized stratified squamous epithelium possesses.

Question 14

4 / 4 pts

Match the following epithelial tissue types with the correct description.

Correct!

Stratified squamous epithelium

             

Correct!

Stratified cuboidal epithelium

             

Correct!

Stratified columnar epithelium

             

Correct!

Transitional epithelium

             

Quiz Score: 40 out of 40

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