Summary
Summary Life Sciences: Human Reproduction
- Course
- Institution
- Book
This is an in-depth summary of topic 4 of the Solutions for all Life Sciences grade 12 Learners book which is: Human Reproduction.
[Show more]
Connected book
Book Title:
Author(s):
- Edition:
- ISBN:
- Edition:
More summaries for
-
Life Sciences: The Human Endocrine System
-
Life Sciences: Diversity in Reproductive Strategies
-
GRADE 11/12 IEB ENDOCRINE SYSTEM SUMMARY
Seller
Follow
miadehaan
Reviews received
Content preview
HUMAN REPRODUCTIONSTRUCTURE OF MALE REPRODUCTIVE SYSTEM
- Sperm produced in testes = carried via vas deferens to penis
- Penis fills with blood = becomes hard + erect (erection) = essential to transfer semen
into female vagina
- During ejaculation sperm + secretions from seminal vesicles, Cowper Gland + prostate
gland form sticky fluid (semen)
STRUCTURE OF FEMALE REPRODUCTIVE SYSTEM
, PUBERTY
- Period where body develops + becomes
sexually mature
- Males: ages 9-14
- Females: ages 8-13
Hormones that control puberty:
- Gonadotropin-releasing hormone (GnRH),
secreted by hypothalamus = stimulates
pituitary gland to secrete follicle-stimulating
hormone (FSH) and luteinising hormone (LH)
into blood which carries hormones to
reproductive organs
- FSH and LH stimulate sex organs to
produce oestrogen (in ovaries) +
testosterone (in testes) which cause puberty
to start
Changes in body during puberty:
Boys Girls
- Pimples develop - Pimples develop
- Hair growth: face, armpits, pubic area - Hair growth: armpits, pubic area
- Body odour strengthens - Body odour strengthens
- Muscles develop - Breasts develop
- Penis + testes get larger + testes start producing - Ovaries start producing eggs + menstrual cycle
sperm starts = pregnancy may occur after sex
- Size of larynx increases = deeper voice - Hips widen
SPERMATOGENESIS *Gametogenesis: process where sex organs produce gametes
- Process where testes produce sperm
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller miadehaan. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $5.63. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
64438 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now