Human Reproduction(Male)

Question 1

Define gametogensis

Answer 1

The reproductive events in humans include the formation of gametes it is called gameotogenesis
In male sperms are produced through spermatogenesis
In female ovum is produced through oogenesis

Question 2

Define insemination

Answer 2

The transfer of sperms into the female genital tract

Question 3

Define Fertilisation what does it lead to

Answer 3

The fusion of male and female gametes is called Fertilisation
It leads to formation of zygote

Question 4

Event of Fertilisation is followed by

Answer 4

Fertilisation is followed by the formation and development of blastocyst and it’s attachment to the uterine wall

Question 5

What is implantation

Answer 5

The attachment of the blastocyst to the uterine wall is called implantation

Question 6

Define gestation

Answer 6

It is the period of embryonic development

Question 7

Define Parturation

Answer 7

The delivery of the baby is called parturition

Question 8

When can reproductive events begin to occur?

Answer 8

Reproductive events can begin to occur after puberty

Question 9

Location of the male reproductive system

Answer 9

Located in the pelvis region or extra abdominal

Question 10

What are the constituents of the male reproductive system

Answer 10

A pair of testes along with accessory ducts glands and external genitalia

Question 11

Differences between make and female reproductive events

Answer 11

There is a vast difference as sperms formation continues even in old men but the production of ovum ceases in older women generally around the age of 50

Question 12

Location of testis

Answer 12

They are located outside the abdominal cavity within a pouch called scrotum

Question 13

Function of the scrotum

Answer 13

The scrotum helps in maintaining the low temp of the testis which is generally 2-2.5°C lower than that of the normal internal body temp necessary for spermatogenesis

Question 14

Shape and size of testis

Answer 14

The testis are oval in shape with a length of about 4-5 cm and a width for about 2-3 cm

Question 15

Coverings of the testis

Answer 15

The testis is covered by a dense covering
3 layered
Tunica vaginalis outer
Tunica albuginia middle
Tunica vasculosa inner

Question 16

What are testicular lobules
How many are present in a single testis

Answer 16

Each testis has about 250 compartments called testicular lobules
Each lobule contains about 1-3 highly coiled seminiferous tubules

Question 17

Define seminiferous tubules and write it’s constituents

Answer 17

Seminiferous tubules are highly coiled tubules present in the testicular lobules in which sperms are produced
Each seminiferous tubule is lined on its inside by two types of cells called male germ cell (spermatogonia) and Sertoli cells

Question 18

Function of spermatogonia and Sertoli cells

Answer 18

The male germ cell (spermstogonia) undergoes meiotic division finally leading to sperm formation while sertoli cells provide nutrition to the germ cells

Question 19

Cells / space outside seminiferous tubules

Answer 19

The region outside seminiferous tubules is called interstitial spaces which contains small blood vessels and interstitial cells or Leydig cells

Question 20

Function of leydig cells

Answer 20

They synthesise and secrete testicular hormones called androgens

Question 21

Name all the male sex accessory ducts

Answer 21

The male sex accessory ducts include the vas deferens the rete testis the epididymis and Vasa efferentia

Question 22

Location of epididymis

Answer 22

It is located along the posterior surface of each testis

Question 23

Functions of accessory ducts

Answer 23

These ducts store and transport the sperms from the testis to the outside through urethra

Question 24

What is urethral meatus

Answer 24

The urethra originated from the urinary bladder and extends through the penis to its external opening called urethral meatus

Question 25

When are mature sperms present

Answer 25

Mature sperms are present only after epididymis

Question 26

Path of sperm

Answer 26

The seminiferous tubules

Rete testis

Vasa efferentia

Epididymis

Vas deferens

Seminal vesicle secretion

Urethra as ejaculatory duct

Question 27

What is penis
What is it composed of
How does it facilitate insemination

Answer 27

The penis is the male external genitalia
It is made up of special tissues that help in the Erection of the penis to facilitate insemination

Question 28

What is penis ending called
What covers it

Answer 28

The enlarged end of the penis is called the glans penis it is covered by a loose fold of skin called foreskin

Question 29

Name the male accessory glands

Answer 29

Includes paired seminal vesicle a prostate gland and paired bulbourethral gland

Question 30

What is seminal plasma what are its constituents

Answer 30

Secretion of the accessory glands constituent the seminal plasma which is rich in fructose calcium and certain enzymes

Question 31

Function of the bulbourethral gland

Answer 31

The secretion of the bulbourethral gland helps in the lubrication of the penis