Understanding the Human Body

The Human Body

Livre numérique

Understanding the Human Body
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With 6 trillion cells, 206 bones, and 600 muscles, the human body is an amazing living mechanism that is in intense and constant activity.

For all curious readers, the Knowledge Guides open the door to a world of complex and captivating phenomena.

Accurate, detailed visual information is all defined in lay language to make it readily accessible to the non-expert. Definitions to scientific terms are given either in the explanation itself, or in the comprehensive glossary.

Table des matières

Table des matières
Understanding the Human Body 1
Table of Contents 5
The body’s building blocks 8
The human cell 9
Chromosomes and DNA 11
Cellular activity 13
Body tissues 15
The architecture of the body 18
The skin 19
Bone structure 21
Bone growth 23
The human skeleton 25
Types of bones 27
The head 28
The spine 29
The hand and the foot 31
The joints 33
The skeletal muscles 35
Muscle tissue 37
The muscles of the head 39
The action of the skeletal muscles 41
The movements of the hand 42
The nervous system 44
Neurons 45
The central nervous system 47
The brain 49
The cerebrum 51
The peripheral nervous system 53
The motor functions of the nervous system 55
The five senses 58
Touch 59
The eye 61
Sight 63
The organ of hearing 65
Perception of sound 67
Balance 68
Taste 69
Taste receptors 71
Smell 73
Blood circulation 76
Blood 77
The cardiovascular system 79
Arteries and veins 81
The heart 83
The cardiac cycle 85
The lymphatic system 87
Immunity 89
The endocrine system 91
The hypothalamusand the pituitary gland 93
The urinary system 95
Respiration and nutrition 98
The respiratory system 99
Respiration 101
Speech 103
The digestive system 105
The teeth 107
The stomach 109
The intestines 110
The liver, pancreas, and gallbladder 111
Reproduction 114
The male genital organs 115
The female genital organs 117
Fertilization 119
The life of the embryo 121
Maternity 123
Glossary 125
Index 127