male

Question 1

penis

Answer 1

tubular organ with a tip

Question 2

peen Contains 3 long cylinders of tissue

Answer 2

Corpora cavernosa: 2 cylinders of spongy tissue that run length of penis at top
Engorge with blood when sexually aroused -> stiffen

corpus spongiusum:Spongy tissue that surrounds urethra->protects urethra from being squeezed shut during erection

Question 3

Frenulum

Answer 3

thin tissue that connects the underside of the glans to the shaft

Question 4

Corona

Answer 4

ridge around the edge of the glans (head)

Question 5

Foreskin

Answer 5

loose skin that covers the glans

Should be easily to retract

Question 6

Tyson’s glands

Answer 6

under foreskin found to produce smegma (controversial whether they exist)

Question 7

Circumcision

Answer 7

Surgical removal of foreskin
At birth, adolescents, or adulthood

Question 8

circumcision controversy

Answer 8

Non-circumcision movement in the 1980’s where researchers said risks outweigh benefits

Rate of circumcision in canada now is 32%, but it is declining

In 2015, pediatric health association said circumcision risks outweigh benefits

Decision to circumcise should be given later in life for consent

Sexual function:mixed evidence
One researcher said there was no difference between uncircumcised vs circumcised peen

HVI/STI;mixed evidence
In areas where few people use protection, have higher rates of STDs and less sex education found that uncircumcised penis may increase risk; but where we have good sexual health education and regular condom use we don’t see any effects

Question 9

Supercision(in polynesia)

Answer 9

Slit on length of foreskin

Question 10

Subcision

Answer 10

Slit made on the underside of penis (entire length of penis)

Urine comes out of base of penis instead of tip

Question 11

Penis size

Answer 11

Avg length: 7 cm (3 inches) to 10 cm (4 inches) flaccid, 13 cm (5 inches erect)
Avg circumference: 11.5-12.5 cm (4.5-5 inches)

Question 12

Katharina Ruppen-Greef:

Answer 12

According to women the most important aspects (penis length is not that important to pleasure):

1)general cosmetic appearance
2)pubic hair appearance
3)penile skin
4)penile girth
5)glans shape
6)penile length
7)scrotum appearance

Question 13

Penis size lengthening

Answer 13

Only effective way to lengthen penis is surgery

Release of the fundiform ligament and the suspensory ligament

Cutting ligament connecting the penis to the body (gain around 0.5-1 inch)

Question 14

Penis curvature

Answer 14

Most penises are curved and asymmetrical

Question 15

Peyronie’s disease:

Answer 15

abnormal curvature of penis(due to injury)

Question 16

Penile fracture

Answer 16

Rupturing of the membrane that surrounds the corpus cavernosa

Question 17

Scrotum

Answer 17

Pouch of loose skin that holds the testes and spermatic cord

Question 18

Cremaster muscle

Answer 18

thin layer of muscle around testes

Responsible for cremaster reflex (raises and lower scrotum due to temperature)

Testes need to be around a certain temperature to release sperm

Question 19

Testes (in scrotum)

Answer 19

Serve 2 purposes:
1)seminiferous tubules produce sperm

2)interstitial cells produce androgens (ie testosterone)
Helps to create Secondary sex characteristic (ie facial hair)

Question 20

Sperm

Answer 20

Produced in seminiferous tubules through spermatogenesis (maturation of sperm) (takes 74 days)-> then passed on to rete testes ->Collected in epididymis (for 6 weeks, if not used then get absorbed into body)

Produce 1000/second; 30 billion/year

Contain 23 chromosomes

Question 21

Passage of sperm

Answer 21

1)Through vas deferens
2)Past the seminal vesicles(produce 60% of fluid that is ejaculated)
3)Past the prostate gland (produce 40% of fluid)
4)Then to Cowper’s gland: releases a clear alkaline fluid before ejaculation (pre-cum)
Help to neutralize the urethra
4)Then sperm comes out of the urethra

Question 22

Semen

Answer 22

Made up:
~Sperm 1%
~Seminal fluid from the seminal vesicles (60%)
~Fluid from prostate (40%)
~~~Fluids provide nourishment for sperm (fructose)