Presentation is loading. Please wait.

Presentation is loading. Please wait.

Human Reproductive System

Similar presentations


Presentation on theme: "Human Reproductive System"— Presentation transcript:

1 Human Reproductive System

2 Puberty = sexual maturity (ability to reproduce)
Defined: organs & glands that produce hormones which help make a new human. Puberty = sexual maturity (ability to reproduce) Controlled by hormones Hypothalamus & Pituitary glands release 2 major hormones: FSH LH Develop sexual characteristics and reproductive system

3 Males vs. Females Similarities Differences 2 compartments Male
Testes Ovaries Start inside body Testicles drop before birth Fetus has glands that could become either female or male Father “determines” gender Depends on genes XX: Female XY: Male Differences Male XY Produce MILLIONS of sperm every day Female XX One egg, once a month

4 Male Anatomy

5 Male Reproductive System
Function: Produce sperm Deliver sperm to female egg Testes Outside body If temp is too high, sperm can’t be made Produces Testosterone Develops male sex characteristics Makes sperm FSH LH Testosterone

6 Review: Spermatogenesis Defined: Production of sperm cells
spermatogonium Review: Spermatogenesis Meiosis 1 Meiosis 2 Defined: Production of sperm cells Process: Meiosis Location: male testes Makes final changes to sperm cell Four haploid sperm cells at a time 23 chromosomes in each Spermatogenesis

7 What is sperm? MYTH: tiny human inside TRUTH: Contains Several Parts:
Head Enzymes to get through egg membrane 22 autosomes X or Y chromosome Mitochondria Energy Tail Swimming Matures in the epididymis

8 Male Reproductive sys. Cont.: Prostate
Function: Produces fluid that nourishes and protects sperm Sperm + fluid = semen Cancer Most common form in men Slower-growing (usually) Radiation, Chemotherapy, or surgery for removal Prostate exams help monitor

9 Fertilization Defined: Fusion of egg and sperm to create zygote
Semen  vas deferens  urethra opening million sperm released only 1 sperm cell gets through to egg enzymes help get in instant biochemical change (no more sperm can enter)

10 Review Which hormones stimulate the maturity of the male reproductive system? Which cellular process produces sperm cells? Explain the function of the following: pituitary gland, testes, prostate, epididymis, and vas deferens How does the structure of a sperm cell aid in it’s function Describe how an egg is fertilized Are sperm cells haploid or diploid? A zygote? How many chromosomes can be found in a human sperm cell? A zygote?


Download ppt "Human Reproductive System"

Similar presentations


Ads by Google