Skip to content

Course home

x
5.3.1 Human endocrine system
x

Hormones carry messages through the blood

Hormones carry messages through the blood

Endocrine cell releasing hormone molecules into the bloodstream, which carries them to a distant target cell

The endocrine system is a system of glands that secrete chemical messengers called hormones. Endocrine glands release hormones directly into the bloodstream.

5.3.1 Human endocrine system Lesson

  1. GCSE
  2. /Biology
  3. /5.3.1 Human endocrine system

Step-by-step lessons on AQA GCSE Biology 5.3.1 Human endocrine system. Each one builds up to exam-style questions. Start with the foundational topics and build up to the higher-tier material.

Lessons