Class Notes (837,484)
Canada (510,274)
BIOB33H3 (116)
Lecture

Anatomy Chapter 20.docx

3 Pages
118 Views
Unlock Document

Department
Biological Sciences
Course
BIOB33H3
Professor
Connie Soros
Semester
Winter

Description
Chapter 20 Reproductive System • Basics - Primary reproductive organs (gonads) 1. major functions a. produce gametes (gametogenesis) (1) sperm in male (2) ova in female b. secrete sex hormones (androgens & estrogens) (1) mainly testosterone in male (2) mainly estrogen & progesterone in female (3) important in the development of secondary sex characteristics (hair distribution, body shape, voice change) as well as major reproductive functions and development - essential functions in the male 1. spermatogenesis 2. delivery of sperm to female - essential functions in the female 1. oogenesis 2. receive sperm and transport for fertilization 3. maintain fetus 4. parturition and nourishment of infant - sex differentiation • Spermatogenesis - begins at puberty - parts of sperm 1. head contains DNA a. acrosome has enzymes to penetrate egg 2. midpiece has mitochondria 3. tail is for movement 1 - control of spermatogenesis 1. an increase in GnRH from hypothalamus occurs at puberty a. probably due to a decrease in melatonin 2. anterior pituitary hormones secreted (gonadotropins) a. luteinizing hormone (LH a.k.a. ICSH)  testosterone from interstitial cells  mitosis/meiosis of germ cells b. follicle stimulating hormone (FSH)  spermiogenesis (sperm remodeling) • Semen - produced by different glands 1. seminal vesicles (about 70%) a. fructose for energy b. prostaglandins for smooth muscle contraction in male and female reproductive tracts (transport) c. fibrinogen for clotting
More Less

Related notes for BIOB33H3

Log In


OR

Join OneClass

Access over 10 million pages of study
documents for 1.3 million courses.

Sign up

Join to view


OR

By registering, I agree to the Terms and Privacy Policies
Already have an account?
Just a few more details

So we can recommend you notes for your school.

Reset Password

Please enter below the email address you registered with and we will send you a link to reset your password.

Add your courses

Get notes from the top students in your class.


Submit