Lab 17 Female Reproductive System: 1) Index 2) Introduction 3) Things to Identify 4) Ovary 5)Ovary 2 6)Corpus Luteum 7) Corpus Albicans 8) Oviducts 9) Uterus (proliferative) 10) Uterus (secretory) 11)Uterus (menstral) 12) Cervix 13) Vagina 14) Pregnant Uterus 15) Mammory Glands (resting) 16)Mammory Glands (active) 17) Comparison of Structures 18) Practical

 

Oviducts (Fallopian Tubes)

 

# 179 - Oviduct (fallopian tube), fimbriae, human, h. - e.

# 227 - Fallopian tube, c.s., h. - e.

 

This section (slide 179) was taken through the ampulla. Identify the mucosal folds and the secretory peg cells which are located between the ciliated columnar epithelial cells lining the oviduct. Note the thick inner circular and the thin outer longitudinal muscle layers.

REFERENCES: Gartner, pp. 348 - 351 Ross, pp. 693 - 694, 720 - 721 Wheater, pp. 343 - 345 DiFiore, p. 304 - 305

 

Here is a low power cross section of the fallopian tubes, blue arrows. Notice the convoluted nature of the lumen.

 

Blue arrow - Fallopian Tubes

 

 

 

 

 

Here is a closer look at the epithelium that lies the fallopian tubes. It is made up of Ciliated cells (blue arrows), and the Peg Cells (red arrows). These cells vary in number depending on what part of the ovulation cycle it is. The ciliated cells are most numerous around the time of ovulation and the peg cells are most numerous during the luteal phase.

Red arrows - Peg cells

Blue arrows - Ciliated Cells

 

 

 

Here is a high magnification of the Peg cells (blue arrows) and the Ciliated cells (red arrows) that line the fallopian tubes. Notice the characteristic dark elongated shape of the peg cells from which they get their name. When ever you see an epithelium with long dark nuclei (of the peg cells) and ciliated cells you know you are in the fallopian tube.

Blue arrow - Peg cells

Red arrow - Ciliated cells

 

Fallopian Tubes

Fallopian tube (peg and cilliated cells)

Peg and Cilia Cells