Process of Gametogenesis

OL Lab 6: Male and female reproductive system

Learning objectives:

• Identify the process of gametogenesis
• Describe the hormonal regulation in male and female reproductive cycle.
• Identify the male and female reproductive structures.

 

Part 1: Male reproductive system

1.1 Identify the missing labels to complete the hormonal regulation in the male reproductive system. (5 points)

 

A.

B.

C.

D.

E.

 

 

 

1.2 Identify the function of the following hormones:  (4 points)

1. Gonadotropin-releasing hormone (GnRH):

 

1. Follicle stimulating hormone:

 

1. Luteinizing hormone:

 

1. Inhibin

 

1. Dihydrotestosterone (DHT)

 

1. Testosterone

 

1. Androgen –binding protein

1.3 Identify the parts of the human sperm. (3 points)

 

A.

B.

C.

D.

E.

F.

G.

 

1.4 Read the case study. Answer the questions in complete sentences and in your own words.

(3 points)

Sam and Jane were at the doctor’s office since they had been trying to conceive for over 12 months. Examination revealed that Sam’s testicular structure and spermatogenesis was normal but had no spermatozoa in his semen. It was observed that Sam had a developmental defect in which the epididymis of his testicles did not connect to the ductus deferens.

1. What is a lobule of the testicle? What does each lobule contain?

 

 

 

 

2. Which structure connects the epididymis to the ejaculatory duct?

 

3. Follow the path taken by sperm from their site of production to the ejaculatory duct.

 

 

 

 

Part 2: Female reproductive system

2.1 Complete the steps in oogenesis. (4 points)

 

A.

B.

C.

D.

 

2.2 Identify the parts of the ovary: (4 points)

	Structure
A
B
C
D
E
F
G
H
I

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

2.3 Fill in the missing labels to complete the female reproductive cycle. (3 points)

 

 

A.

B.

C.

D.

E.

 

2.4 Read the case study. Answer the questions in complete sentences and in your own words.

(4 points)

Jane, a 24 year old singer, went to her doctor to discuss contraception. Her doctor educated her of the several options but advised that she could try the combined oral contraceptive pill (COCP).

1. Which hormone promotes the follicular maturation within the ovary?

 

 

1. Which hormone stimulates ovulation?

 

 

 

 

1. Which hormone is released by corpus luteum?

 

 

 

1. What is COCP? Based on your understanding what would be the hormones that you would suggest for Jane? Why?