4.1 Sexual Reproduction In Humans

Question 1

What is internal in the male reproductive system

Answer 1

Prostate gland
Seminal vesicle
Vas deferens

Question 2

What are the external parts of a male reproductive system

Answer 2

Epididymis, testis, penis, scrotum

Question 3

Function of penis

Answer 3

Male organ for sex and urination
Erectile tissue fluid fills with blood to make it erect
Seminal fluid is added to sperm so it can swim

Question 4

Function of the urthra

Answer 4

Semen and urine leave penis through the urethra

Question 5

Function of the scrotum

Answer 5

Loose pouch like sac of skin that hangs behind the penis and contains the testes
• it is protective as it maintains temperature for sperm survival and function - does this by contracting/relaxing muscles to move testes near the body

Question 6

Function of epidiymis

Answer 6

Stores and carries sperm
Located at the back of the testis and connects it to the vas deferens

Question 7

Function of testis

Answer 7

Location of testosterone production

Question 8

Function of seminiferous tubules

Answer 8

Coiled collection of tubes within the testes that is the location of spermatogenesis

Question 9

Function of vas deferens

Answer 9

Accessory organ that transports mature sperm to the urethra for ejaculation

Question 10

Function of seminal vesicles

Answer 10

Accessory organ that are sac like pouches that attach to the vas deferens near the base of the bladder
Secrete mucus and prostate fluid which provide nutrition and is alkali to neutralise the acidity of the vagine

Question 11

Function of prostate galnd

Answer 11

Accessory organ that is about the size of a walnut and located below the urinary bladder in front of the rectum
Contributes additional fluid to ejaculate that serves as nourishment for sperm
Secretes an alkali fluid

Question 12

Function of uterus

Answer 12

Site of implantation and development of foetus
Produces vaginal and uterine secretions
Passes the male sperm through the oviduct

Question 13

What does the uterus mainly consist of

Answer 13

Smoot muscle

Question 14

Function of ovaries

Answer 14

Produce female egg cells
Produce and secrete oestrogen and progesterone

Question 15

Function of endothelium lining the uterine cavity

Answer 15

Consists of mucous membrane which is well supplied with blood
Will shed during menstruation
Implantation- it is where the embryo implants, and placenta develops so is where waste products are removed

Question 16

Function of oviducts

Answer 16

2 fine tubes lined with ciliated epithelium which extend from ovaries to the uterus