
Epididymis: body and tail
The lumen of the duct of the epididymis presents a smooth outline and is lined by pseudostratified columnar epithelium with stereocilia. This epithelium decreases in height as the duct progresses from the head to the tail region. A thin layer of smooth muscle surrounds the duct; this muscle increases in thickness from head to tail. 1000x

Pseudostratified epithelium
The lumen of the duct of the epididymis presents a smooth outline and is lined by pseudostratified columnar epithelium with stereocilia. This epithelium decreases in height as the duct progresses from the head to the tail region. A thin layer of smooth muscle surrounds the duct; this muscle increases in thickness from head to tail. 1000x

- Stereocilia
The lumen of the duct of the epididymis presents a smooth outline and is lined by pseudostratified columnar epithelium with stereocilia. This epithelium decreases in height as the duct progresses from the head to the tail region. A thin layer of smooth muscle surrounds the duct; this muscle increases in thickness from head to tail. 1000x

- Terminal bars
The lumen of the duct of the epididymis presents a smooth outline and is lined by pseudostratified columnar epithelium with stereocilia. This epithelium decreases in height as the duct progresses from the head to the tail region. A thin layer of smooth muscle surrounds the duct; this muscle increases in thickness from head to tail. 1000x

Smooth muscle
The lumen of the duct of the epididymis presents a smooth outline and is lined by pseudostratified columnar epithelium with stereocilia. This epithelium decreases in height as the duct progresses from the head to the tail region. A thin layer of smooth muscle surrounds the duct; this muscle increases in thickness from head to tail. 1000x