Human Biology Topics

Alimentary Canal
A long tube in the body through which food passes along so that it can be digested.
Aorta
A blood vessel carrying blood away from the heart.
Artery
A blood vessel that carries blood away from the heart. All arteries, except for the pulmonary artery, contain oxygen.
Balanced Diet
The right amount of food and food types to meet a bodies needs.
Blood
A liquid that circulates inside the bodies of animals.
Blood Cells
Any cells contained in the blood.
Blood Group
A human is born with one of four main types of blood.
Blood Pressure
The pressure of blood in the main arteries in an animal.
Blood Vessel
A tube that carries blood around the body of an animal.
Bone
Primarily based on phosphate and carbonate.
Brain
An organ in the body which makes decisions and controls muscles in the body.
Breathing
Movements which pump air in and out of the body.
Capillary
A blood vessel with very thin walls.
Carbohydrate
A class of organic compounds including sugars and starches.
Cholesterol
A substance which can cause blocks in blood vessels.
Circulatory System
A system which carries substances around the body.
Colon
The main part of the large intestine. It absorbs water from food.
Contraceptive
Something that prevents pregnancy.
Dietary Fibre
This helps food to pass through the alimentary canal.
Embryo
A young animal growing inside it′s mother or growing inside an egg.
Fallopian Tube
A tube in female mammals which carries the egg cell from the ovary to the uterus.
Fat
A solid substance that is used by animals as a store of food energy.
Femur
The thigh bone in humans.
Fertilisation
The joining of the male and female gametes.
Foetus
A young animal growing inside it′s mother, a foetus will have the same overall shape and parts of it′s parents.
Gamete
A reproductive cell, in humans the male cell is a sperm the female cell is the ovum.
Gland
An organ in an organism which makes a particular substance.
Heart
A muscular organ that pumps blood through the body, a human heart is about the size of a fist.
Human Biology Books
Lists all Human Biology Books in the Encyclopaedia
Human Biology Calculations
Lists all Human Biology Calculations in the Encyclopaedia
Human Biology Conversions
Lists all Human Biology Conversions in the Encyclopaedia
Human Biology Weblinks
Lists all Human Biology Weblinks in the Encyclopaedia
Human Skeleton
Serves as a scaffold which supports organs, anchors muscles, and protects organs such as the brain, lungs and heart.
Inferior Vena Cava
A blood vessel carrying blood to the heart.
Left Atrium
The left upper chamber of the heart.
Left Ventricle
The left lower chamber of the heart
Mitral Valve
The valve between the left atrium and the left ventricle of the heart.
Ovum
An unfertilized gamete, the female sex cell.
Pulmonary Artery
The blood vessel that carries oxygen-poor blood from the right ventricle of the heart to the lungs.
Pulmonary Valve
The flaps in the heart between the right ventricle and the pulmonary artery.
Pulmonary Vein
The blood vessel that carries oxygen-rich blood from the lungs to the left atrium of the heart.
Right Atrium
The right upper chamber of the heart.
Right Ventricle
The right lower chamber of the heart.
Septum
The muscular wall that separates the left and right sides of the heart.
Smell
Human can detect around 1 trillion different smells.
Superior Vena Cava
A large vein that carries oxygen-poor blood to the right atrium from the upper parts of the body.
Taste
Four basic tastes are sour, sweet, salt and bitter.
Tricuspid Valve
The flaps between the right atrium and the right ventricle.
Umbilical Tube
A tube that connects a growing embryo to the placenta.
Unit of Blood
Unit of volume for human blood and its components.
Urine
Liquid waste that leaves the body, compostition 96% water, 2% urea, 2% salts.
Uterus
The hollow organ where babies grow (the womb).
Ventricle
A chamber in the lower part of the heart.

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Subjects: Biology