Activity 3: Studying Bladder Structure

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1

What are the 3 layers of the bladder (from innermost to outermost)?

1. Mucosa

2. Muscular layer

3. Fibrous adventitia

2

The mucosa of the urinary bladder is made up of what epithelium?

Transitional epithelium

3

Transitional epithelial cells have what ability?

The ability to slide over one another

4

The ability of transitional epithelial cells sliding over one another is important to the mucosa layer in what 2 ways?

1. Decreases the thickness of the mucosa layer as the bladder fills

2. Stretches to accommodate the increased urine volume

5

The heavy muscular wall of the urinary bladder is also called what?

Detrusor

6

The heavy muscular wall of the urinary bladder or detrusor consists of what 3 muscular layers (from innermost to outermost)?

1. Longitudinal muscle layer

2. Circular muscle layer

3. Longitudinal muscle layer

7

The urinary bladder wall and the ureter are structurally similar in what 2 ways? (Hint: They share 2 physical makeup properties)

1. Both have transitional epithelium

2. Both have adventitia

8

What is the most obvious difference between the urinary bladder wall and the ureter? (Think: number of muscular layers and arrangement)

1. Urinary bladder wall contains 3 muscular layers (from innermost to outermost):

  • Longitudinal muscle layer
  • Circular muscle layer
  • Longitudinal muscle layer

2. The ureter contains only 2 muscular layers (from innermost to outermost):

  • Longitudinal muscle layer
  • Circular muscle layer
9
card image

1. Identify the blanks.

2. What is the slide showing? (Hint: what urinary system feature?)

card image

1. Look at picture.

2. Urinary bladder

10
card image

1. Identify the blanks.

2. What is the slide showing? (Hint: what urinary system feature?)

card image

1. Look at picture.

2. Ureter wall