The endocrine and nervous systems work together to regulate reproduction. The hypothalamus connects the endocrine and nervous systems by signaling the pituitary gland to produce hormones. Hormones travel through the bloodstream to target cells and bind with receptors to control cellular functions. If an endocrine gland is not functioning properly, it can impair fertility by disrupting communication between glands. Reproductive hormones produced by glands, such as testosterone and estrogen, influence puberty and development. A feedback mechanism regulates hormone production to maintain homeostasis.

1. Role of Endocrine
system and
Nervous system in
Reproduction

2. ENDROCRINE SYSTEM
 Endocrine glands secretes hormones into the our
blood
 It serve’s as the body’s message center through the
hormones.
 If your endocrine system isn’t healthy, there might
have some problems during puberty, pregnancy and
lacking of energy.
 Hypothalamus: This organ connects your
endocrine system with your nervous system. Its main
job is to tell your pituitary gland to start or stop
making hormones.

3.  Hormones travel from endocrine gland through the
bloodstream to the cells.
Target Cells
Once hormones find a target cell, they bind
with specific protein receptors inside the cell.
These proteins control the amount of hormone
that is available for the cells to use.
ENDROCRINE SYSTEM

5. NERVOUS SYSTEM
 Send messages through nerve impulses(the way nerve
cells communicate with one another) then the
endocrine system send hormones as messages.
 Hormones provide feedback to the brain to affect
neutral processing.
 If one endocrine glands is not functioning properly, it
can damage fertility due to broken link communication
from the other glands.
 If the gland is not functioning properly, the ability to
reproduce may be impaired.

6. THE REPRODUCTIVE HORMONES
 HORMONES-chemical messenger created by the body
 These are produced by GLANDS
 Hormones play a critical role in our body, carrying
messages between cells and organs.
 It affect our body’s functions, from growth and sexual
development and mood to how well we sleep, how we
manage stress and how our body breaks down food.
 They travel in the bloodstream.

8. MALE AND FEMALE
 GNRH- Gonadotrophin Releasing hormone to
pituitary gland (stimulates)
 LH- Luteinising Hormone
 FHS- Follicle Stimulating Hormone causes follicles
that contain eggs and produce hormone Estrogen.
 Ovulation begins.
 Progesterone and Estrogen- thicken the lining of the
uterus. Leydig cells-produce testosterone
 ICSH- interstitial-cell stimulating hormones
-produced by the anterior lobe to produce
testosterone

9. REPRODUCTIVE GLANDS
GONADS
Testes for Male (secrete
ANDROGENS)
Overies for Female (secrete
Estrogen and Pogesterone)
 Male produce testosterone.
 Puberty: deepening of voice, broadening of shoulders,
height growth, pubic hair, and facial hair growth.
 Female produce eggs.
 Puberty: menstrual flow, breast growth, pubic hair,
widening of hips, mood swings and pregnancy.
 PRECOCIOUS PUBERTY –can be treated

10. FEEDBACK MECHANISM
 responses that trigger other activities and does affect
the production of hormones
 2 types
 Negative feedback mechanism
 Decrease deviation from normal value
 Regulate blood glucose level.
 Positive feedback mechanism
 Increase deviation from the normal value
 Rarely used