DB Chapter 7: Spermatogenesis at Hochschule Bonn-Rhein-Sieg

Flashcards and summaries for DB Chapter 7: Spermatogenesis at the Hochschule Bonn-Rhein-Sieg

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Study with flashcards and summaries for the course DB Chapter 7: Spermatogenesis at the Hochschule Bonn-Rhein-Sieg

Exemplary flashcards for DB Chapter 7: Spermatogenesis at the Hochschule Bonn-Rhein-Sieg on StudySmarter:

Where do human sperms develop?

Exemplary flashcards for DB Chapter 7: Spermatogenesis at the Hochschule Bonn-Rhein-Sieg on StudySmarter:

What do early spermatides differentiate into? 

Exemplary flashcards for DB Chapter 7: Spermatogenesis at the Hochschule Bonn-Rhein-Sieg on StudySmarter:

From the epithelium, where are sperms finally released into?

Exemplary flashcards for DB Chapter 7: Spermatogenesis at the Hochschule Bonn-Rhein-Sieg on StudySmarter:

What is the total length of a mature sperm?

Exemplary flashcards for DB Chapter 7: Spermatogenesis at the Hochschule Bonn-Rhein-Sieg on StudySmarter:

Name the different phases of spermiogenesis!

Exemplary flashcards for DB Chapter 7: Spermatogenesis at the Hochschule Bonn-Rhein-Sieg on StudySmarter:

What is the "ovum"?

Exemplary flashcards for DB Chapter 7: Spermatogenesis at the Hochschule Bonn-Rhein-Sieg on StudySmarter:

What does the haploid female gamete accumulate a large amount of during its maturation? What does it include?

Exemplary flashcards for DB Chapter 7: Spermatogenesis at the Hochschule Bonn-Rhein-Sieg on StudySmarter:

What do the oocytes and surrounding epithelial cells form during oogenesis?

Exemplary flashcards for DB Chapter 7: Spermatogenesis at the Hochschule Bonn-Rhein-Sieg on StudySmarter:

What do follicles provide for the developing oocytes

Exemplary flashcards for DB Chapter 7: Spermatogenesis at the Hochschule Bonn-Rhein-Sieg on StudySmarter:

What are primary oocytes called?

Exemplary flashcards for DB Chapter 7: Spermatogenesis at the Hochschule Bonn-Rhein-Sieg on StudySmarter:

How are promordial follicles made and when? 

Exemplary flashcards for DB Chapter 7: Spermatogenesis at the Hochschule Bonn-Rhein-Sieg on StudySmarter:

What is the maximum number of primordial follicles in the 5. fetal month?

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Exemplary flashcards for DB Chapter 7: Spermatogenesis at the Hochschule Bonn-Rhein-Sieg on StudySmarter:

DB Chapter 7: Spermatogenesis

Where do human sperms develop?

In the seminiferous tubules in the testis.

DB Chapter 7: Spermatogenesis

What do early spermatides differentiate into? 

Into mature sperms.

DB Chapter 7: Spermatogenesis

From the epithelium, where are sperms finally released into?

They are released into the lumen of the tubule.

DB Chapter 7: Spermatogenesis

What is the total length of a mature sperm?

approx. 60 micrometer. 

DB Chapter 7: Spermatogenesis

Name the different phases of spermiogenesis!

1. Golgi phase

2. Cap phase

3. Acrosomal phase

4. Maturation phase

5. Mature Spermatozoon

DB Chapter 7: Spermatogenesis

What is the "ovum"?

The egg

DB Chapter 7: Spermatogenesis

What does the haploid female gamete accumulate a large amount of during its maturation? What does it include?

It accumulates a large amount of cytoplasm including


  • nutritive proteins (yolk proteins)
  • ribosomes and tRNA 
  • mRNAs 
  • Morphogenic factors 
  • Protective chemicals

DB Chapter 7: Spermatogenesis

What do the oocytes and surrounding epithelial cells form during oogenesis?

They form follicles.

DB Chapter 7: Spermatogenesis

What do follicles provide for the developing oocytes

They provide the microenvironment

DB Chapter 7: Spermatogenesis

What are primary oocytes called?

Primordial follicles

DB Chapter 7: Spermatogenesis

How are promordial follicles made and when? 

They are made during fetal life (3-5. month) by multiple mitotic divisions of oogonia.

DB Chapter 7: Spermatogenesis

What is the maximum number of primordial follicles in the 5. fetal month?

approx. 5 million

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