![This is blank.](https://digitalhistology.org/wp-content/themes/histology-unified/imgs/trans.png)
Urinary bladder: Neck
The neck of the bladder, located at its inferior pole, is a short region that precedes the prostatic urethra in males. Like the rest of the bladder, this region is lined by transitional epithelium. The muscular layer, consisting of inner and outer longitudinal layers and a middle circular layer, is well developed, so that its contraction causes the mucosa to become highly folded. 100x
![Mucosa <p>The neck of the bladder, located at its inferior pole, is a short region that precedes the prostatic urethra in males. Like the rest of the bladder, this region is lined by transitional epithelium. The muscular layer, consisting of inner and outer longitudinal layers and a middle circular layer, is well developed, so that its contraction causes the mucosa to become highly folded. 100x</p>](https://digitalhistology.org/wp-content/uploads/2018/12/Or.Ur_.UB-8-2-ping.png)
Mucosa
The neck of the bladder, located at its inferior pole, is a short region that precedes the prostatic urethra in males. Like the rest of the bladder, this region is lined by transitional epithelium. The muscular layer, consisting of inner and outer longitudinal layers and a middle circular layer, is well developed, so that its contraction causes the mucosa to become highly folded. 100x
![- Transitional epithelium <p>The neck of the bladder, located at its inferior pole, is a short region that precedes the prostatic urethra in males. Like the rest of the bladder, this region is lined by transitional epithelium. The muscular layer, consisting of inner and outer longitudinal layers and a middle circular layer, is well developed, so that its contraction causes the mucosa to become highly folded. 100x</p>](https://digitalhistology.org/wp-content/uploads/2018/12/Or.Ur_.UB-8-1-ping.png)
- Transitional epithelium
The neck of the bladder, located at its inferior pole, is a short region that precedes the prostatic urethra in males. Like the rest of the bladder, this region is lined by transitional epithelium. The muscular layer, consisting of inner and outer longitudinal layers and a middle circular layer, is well developed, so that its contraction causes the mucosa to become highly folded. 100x
![Inner longitudinal muscle <p>The neck of the bladder, located at its inferior pole, is a short region that precedes the prostatic urethra in males. Like the rest of the bladder, this region is lined by transitional epithelium. The muscular layer, consisting of inner and outer longitudinal layers and a middle circular layer, is well developed, so that its contraction causes the mucosa to become highly folded. 100x</p>](https://digitalhistology.org/wp-content/uploads/2018/12/Or.Ur_.UB-8-3-ping.png)
Inner longitudinal muscle
The neck of the bladder, located at its inferior pole, is a short region that precedes the prostatic urethra in males. Like the rest of the bladder, this region is lined by transitional epithelium. The muscular layer, consisting of inner and outer longitudinal layers and a middle circular layer, is well developed, so that its contraction causes the mucosa to become highly folded. 100x
![Middle circular muscle <p>The neck of the bladder, located at its inferior pole, is a short region that precedes the prostatic urethra in males. Like the rest of the bladder, this region is lined by transitional epithelium. The muscular layer, consisting of inner and outer longitudinal layers and a middle circular layer, is well developed, so that its contraction causes the mucosa to become highly folded. 100x</p>](https://digitalhistology.org/wp-content/uploads/2018/12/Or.Ur_.UB-8-4-ping.png)
Middle circular muscle
The neck of the bladder, located at its inferior pole, is a short region that precedes the prostatic urethra in males. Like the rest of the bladder, this region is lined by transitional epithelium. The muscular layer, consisting of inner and outer longitudinal layers and a middle circular layer, is well developed, so that its contraction causes the mucosa to become highly folded. 100x
![Outer longitudinal muscle <p>The neck of the bladder, located at its inferior pole, is a short region that precedes the prostatic urethra in males. Like the rest of the bladder, this region is lined by transitional epithelium. The muscular layer, consisting of inner and outer longitudinal layers and a middle circular layer, is well developed, so that its contraction causes the mucosa to become highly folded. 100x</p>](https://digitalhistology.org/wp-content/uploads/2018/12/Or.Ur_.UB-8-5-ping.png)
Outer longitudinal muscle
The neck of the bladder, located at its inferior pole, is a short region that precedes the prostatic urethra in males. Like the rest of the bladder, this region is lined by transitional epithelium. The muscular layer, consisting of inner and outer longitudinal layers and a middle circular layer, is well developed, so that its contraction causes the mucosa to become highly folded. 100x
![Image source > <p>This image was taken from a slide in the University of Tasmania slide collection.</p>](https://digitalhistology.org/wp-content/uploads/2018/12/Or.Ur_.UB-8-6-ping.png)
Image source >
This image was taken from a slide in the University of Tasmania slide collection.