Anatomy and Cell Biology 3309 Study Guide - Final Guide: Seminiferous Tubule, Loose Connective Tissue, Sertoli Cell
22 May 2018
School
Department
Professor
Histology 3309
Lab 23
Female Reproductive System
Identify the cell indicated by the arrow
- This is the seminiferous tubule
- These are sertoli cells
Identify the cell indicated by the arrow
- Primary spermatocytes
Idenfity the cell indicated by the arrow
- Found in bw seminiferous tubules →leydig cells
Identify the cell indicated by the arrow
- Myoid cells – help with contraction
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The arrow is pointing to the lumen of what structure?
- the entire thing is a penis
- dorsal vein
Todays Objectives:
1. Differentiate between different stages of follicle growth by identifying key histological features
2. Identify structures of the uterine tube related to function
3. Compare the histological changes in the uterus during various stages of the endometrial cycle
4. Describe the histological changes between cervix and vagina as it transitions
5. Distinguish between various stages of mammary gland tissue using histological feature
differences
Ovary
- Cortex: at periphery of the organ (yellow outline)
- Cortex contains numerous follicles (yellow arrows)
- Medulla: loost CT with high content of blood vessels, nerve tissue and lymphatics in the middle
of the organ
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- Surface is covered by a simple cuboidal epithelium (called germinal epithelium)
- Tunica albuginea is connective tissue that supports the epithelium
- The loose connective tissue deeper into the cortex is called the stroma (highly cellular)
- The follicles are embedded within the stroma
Primordial Follicle
- Yellow arrow is showing the germinal epithelium
- TA = tunica albuginea
- Follicle is the oocyte surrounded by cells
- In the primordial cells, the oocyte is large oval cell
o Big nucleus
o Dispersed euchromatin
o Prominent nucleolus
- Primary oocyte is surrounded by follicular cells which are squamous in shape in the primordial
follicle and directly surrounding the oocyte
Primary Follicles
- the next stage in development is the primary follicle
- oocyte continues to enlargen and starts to form the zona pellucida (eosinophilic fine line that
directly surrounds the oocytes) (yellow arrow)
- oocyte is enlargening but so are the follicular cells
- right now, the follicular cells are cuboidal shaped
- unilaminar primary follicle: only 1 layer of follicular cells
- multilaminar cell: multilayers of follicular cells but now they are called granulosa cells
o granulosa cells form the layer surrounding the oocyte
o eventually, this layer will be 6-12 layer
o this layer will be called stratum granulosum or membrane granulosa
- the stroma surrounding the follicle will now be organized into concentric layer that will be
starting adjacent to the granulosum→this is now called the theca
o theca is divided into 2 sublayers called:
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Document Summary
The arrow is pointing to the lumen of what structure? the entire thing is a penis. Cortex: at periphery of the organ (yellow outline) Medulla: loost ct with high content of blood vessels, nerve tissue and lymphatics in the middle of the organ. Surface is covered by a simple cuboidal epithelium (called germinal epithelium) Tunica albuginea is connective tissue that supports the epithelium. The loose connective tissue deeper into the cortex is called the stroma (highly cellular) The follicles are embedded within the stroma. Yellow arrow is showing the germinal epithelium. In the primordial cells, the oocyte is large oval cell: big nucleus, dispersed euchromatin, prominent nucleolus. Primary oocyte is surrounded by follicular cells which are squamous in shape in the primordial follicle and directly surrounding the oocyte. Unilaminar primary follicle: only 1 layer of follicular cells. May not be able to see the oocyte in every graafian follicle.
