BIOLOGÍA Y GEOLOGÍA - BIOLOGY AND GEOLOGY

Changes during puberty :   The male reproductive system: The female reproductive system: Fertilisation . The formation of a new individual: The ovarian and uterine cycles:  Embryonic development:

The locomotor system is made up of the muscles and the bones , it enables us to move around. 

The nervous system: is made up of the central nervous system (CNS) and the peripheral nervous system (PNS).   Central nervous system   Practice: activity. https://es.educaplay.com/recursos-educativos/5094636-the_nervous_system.html Encephalon  Nerve impulses are transmitted across a synapse.  The endocrine system.

Human have 5 senses: smell, touch, taste, hearing and sight.   Hearing.            Practise: test.  Sight .                         Practise: crossword.  Smell .    Taste .    The touch and the skin.

Basic unit of the kidneys: the nephron.   What causes kidneys stones? Causes. How to prevent them.

For watching the explanation of the lymphatic system click here.

Practice:  Complete de text. Test. Test .  

Humans have double and complete circulatory system.  The blood runs through two circuits: the pulmonary circuit and the sistemic circuit. 

The cardiac cycle.

For watching a video of the heart and the blood flow click here.

This is a general vision of our circulatory system, in which you can also study the anatomy of the heart: Video