A – The reproductive system

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Presentation transcript:

A – The reproductive system The structure and function of reproductive organs and gametes and their role in fertilisation Hormonal control of reproduction The biology of controlling fertility Ante- and postnatal screening

KA 2: Hormonal control of reproduction (c) Menstrual Cycle (a) Hormone release at Puberty Hormonal Control (b) Sperm Production

(a) Hormonal Control of Puberty Describe the role of the hypothalamus in puberty Describe the role of the pituitary gland in puberty

The Brain

The Brain

Hormones – N5 Revision Hormones are chemical messengers which are released by endocrine glands. They travel to their target tissue in the blood stream. Hormones can only affect their target tissue because hormones are complementary in shape to specific receptors on the target cell.

Hormonal Control of Puberty Hormones control the onset of puberty, sperm production and the menstrual cycle. Add in slide from National 5 hormonal control

1. FSH (follicle stimulating hormone) The hypothalamus releases a releaser hormone which stimulates the pituitary gland to produce and release 2 hormones: 1. FSH (follicle stimulating hormone) 2. ICSH (interstitial cell stimulating hormone) IN MALES OR LH (luteinising hormone) IN FEMALES The release of these hormones at puberty spark the production of sperm in males and the menstrual cycle in females Releaser hormone – hormone that has the sole purpose of regulating the production and release of other hormones from another endocrine gland.

Puberty Videos BBC Learning Zone video – Hormones and puberty YouTube video - Puberty changes

(a) Hormonal Control of Puberty Describe the role of the hypothalamus in puberty Describe the role of the pituitary gland in puberty

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