Penis + Scrotum

Question 1

penis anatomy

Answer 1

• cylindrical organ, hangs in front of scrotum
• made up of spongy erectile tissue
• contains distensible blood spaces

Question 2

2 parts of penis

Answer 2

1. shaft

2. glans penis

Question 3

shaft anatomy

Answer 3

• long cylindrical part of penis

- made up of L + R corpus cavernosum and corpus spongiosum

Question 4

glans penis

Answer 4

• enlarged tip of penis

- covered by fold of skin (foreskin) unless removed

Question 5

penis function

Answer 5

deposit semen into vagina for egg fertilization

Question 6

erection process

Answer 6

1. during arousal, nervous systems increase arterial blood flow to penis
2. distensible spaces fill with that extra blood
3. this causes penis to stiffen and increase in size

Question 7

purpose of erection

Answer 7

allows penis to be inserted into vagina and deposit semen

Question 8

scrotum

Answer 8

• located just posterior to penis
• pouch of skin that holds testes outside body
• held in place by spermatic fascia

Question 9

scrotum’s response to cold temperatures

Answer 9

contracts to get increased heat from body

Question 10

scrotum’s response to hot temperatures

Answer 10

expands to keep away from body’s heat