Epididymis: head
A higher magnification of an efferent duct shows its columnar epithelium, composed of tall and short cells, some with cilia and some with lysosomes. The variation in height imparts a scallopy border diagnostic for these tubules. The numerous lysosomes absorb and break down testicular fluid, while cilia help propel sperm through these tubules. 400x
Efferent duct
A higher magnification of an efferent duct shows its columnar epithelium, composed of tall and short cells, some with cilia and some with lysosomes. The variation in height imparts a scallopy border diagnostic for these tubules. The numerous lysosomes absorb and break down testicular fluid, while cilia help propel sperm through these tubules. 400x
- Epithelium
A higher magnification of an efferent duct shows its columnar epithelium, composed of tall and short cells, some with cilia and some with lysosomes. The variation in height imparts a scallopy border diagnostic for these tubules. The numerous lysosomes absorb and break down testicular fluid, while cilia help propel sperm through these tubules. 400x
- Cilia
A higher magnification of an efferent duct shows its columnar epithelium, composed of tall and short cells, some with cilia and some with lysosomes. The variation in height imparts a scallopy border diagnostic for these tubules. The numerous lysosomes absorb and break down testicular fluid, while cilia help propel sperm through these tubules. 400x
- Lysosomes
A higher magnification of an efferent duct shows its columnar epithelium, composed of tall and short cells, some with cilia and some with lysosomes. The variation in height imparts a scallopy border diagnostic for these tubules. The numerous lysosomes absorb and break down testicular fluid, while cilia help propel sperm through these tubules. 400x
Vasculature >
The numerous blood vessels present in the connective tissue surrounding the efferent ducts legitimizes the term “coni vasculosi.”
Sperm >
Sperm are present in the lumen of this tubule.
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