Human Reproductive System

Question 1

Identify the structure and function of the testes

Answer 1

Structure: round spherical ball like
Function: make sperm and produce the hormone of testosterone

Question 2

Identify the structure and function of the vas deferens

Answer 2

Structure: long muscular tube
Function: carries sperm to the urethra

Question 3

Identify the structure and function of the urethra

Answer 3

Structure: long muscular tube
Function: carries semen and urine out of the body

Question 4

Identify the structure and function of the penis

Answer 4

Function: urination and sexual intercourse

Question 5

Identify the structure and function of the erectile tissue

Answer 5

Structure: inside the penis, three cylinders
Function: causes the enlarging and stiffening of penis during arousal

Question 6

Identify the structure and function of the scrotum

Answer 6

Structure: thin external sac
Function: carries and protects the testes

Question 7

Identify the structure and function of the prostate gland

Answer 7

Structure: inverted cone shape
Function: secretes an alkaline fluid that helps activate sperm

Question 8

Identify the structure and function of the seminal vesicle

Answer 8

Structure:single coiled tube
Function: secretes a fluid that is rich in sugars and is the main component of semen

Question 9

Identify the structure and function of the Epididymis

Answer 9

Structure: narrow tightly coiled tube
Function: stores semen while they finish maturing

Question 10

describe the pathway of sperm

Answer 10

• Sperm is produced in the testes and stored within the epididymis until ejaculation occurs.
• When ejaculation occurs the sperm if forcefully exerted out the epididymis and goes through the vas deferens until it reaches the seminal vesicle.
• In the seminal vesicle, sperm is combined with semen and is sent through the ejaculatory duct
• Through the ejaculatory duct the sperm is finally released through the urethra

Question 11

what is contained within semen

Answer 11

• Sperm
• Water
• Plasma
• Mucus

Question 12

structure and function of sperm

Answer 12

• Head -> nucleus, acrosome
• Flagellum (Tail)

Function: to fertilize the ovum

Question 13

how is sperm created through spermatogenesis

Answer 13

Sperm made from spermatogenesis
occurs in the seminiferous tubules of each testes
at puberty, the spermatogonia begin dividing by mitosis and in so doing provide a continuous source of new cells for the production of sperm
(See Diagram OneNote)

Question 14

• Describe how the egg is created through oogenesis.

Answer 14

occurs in ovaries, in which oogonia form primary oocytes prior to birth, after puberty, each primary oocyte completes its developments to form a secondary oocyte and up to three polar bodies. the secondary oocyte is released during ovulation and completes meiosis if it is fertilised.

Question 15

• Describe the series of events that occur in the ovaries as part of the ovarian cycle.

Answer 15

Includes:
- Maturation of an egg and its release into a uterine tube
- Development of follicles in the ovary and the formation of a structure called the corpus luteum.
- It is regulated by hormones :FSH, LH

Question 16

Identify the role of hormones FSH and LH in