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
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
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
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
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
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 >
This image was taken from a slide in the University of Tasmania slide collection.
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