Male Reproductive System - PowerPoint PPT Presentation

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Male Reproductive System

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Testosterone is necessary for sperm production and development of ... Epididymis. Sperm are stored and mature here. Vas Deferens. Tubes that lead to the urethra ... – PowerPoint PPT presentation

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Title: Male Reproductive System


1
Male Reproductive System
  • Functions of the Male Reproductive System
  • Produce Sperm
  • Transport sperm into the body of the female
  • Produce male sex hormone testosterone

2
External Structures
  • Penis
  • Incase urethra
  • Scrotum
  • Incase testes
  • Control temperature of testes

3
Internal Structures
  • Testes
  • Make Sperm
  • 50,000 sperm every minute
  • Produce the male sex hormone testosterone
  • Testosterone is necessary for sperm production
    and development of the male sex characteristics.

4
Internal Structures
  • Epididymis
  • Sperm are stored and mature here
  • Vas Deferens
  • Tubes that lead to the urethra
  • Sperm travel through here

5
Internal Structures Continued
  • Seminal Vesicle
  • Supplies fluid to sperm
  • Nourishes sperm
  • Prostate Gland
  • Supplies fluid to protect the sperm

6
Internal Structures Continued
  • Cowpers Gland
  • Supplies fluid to sperm to help with mobility
  • Urethra
  • Sperm travel through here and out the end of the
    penis
  • Urine flows through here and out the end of the
    penis

7
Vocabulary Words
  • Erection
  • Sexual excitement engorges penis with blood
  • Causes erection
  • Sperm Structure
  • Composed of a head and tail
  • Head contains genetic information
  • XY chromosomes, 23 chromosomes

8
Vocabulary WordsContinued
  • Ejaculation
  • The process by which semen leaves the males body
  • Contractions occur around the urethra and base of
    the penis
  • Contractions move sperm out of body
  • 1 ejaculation 40-400 million sperm
  • Nocturnal emission, wet dreams

9
Vocabulary WordsContinued
  • Circumcision
  • Optional procedure
  • Fold of skin called foreskin is cut around the
    tip of the penis and removed
  • Occurs when male is 2-8 days old
  • Uncircumcised
  • Must wash beneath foreskin to prevent infection
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