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The human foot and the human hand

vi, 460 pages : illustrations (some color) ; 19 cm.

Human physiology

Human torso.

Human embryology

Human origins

Photomacrograph of a human eye. The human eye is a complex organ and works in a similar way to a camera. Light enters the eye through the pupil (black). The size of the pupil is controlled by the iris (hazel) in order to adjust how much light enters the eye at any given time. Here, the iris is coloured hazel, but other colours such as brown, green, blue and grey can be present instead. Light enters the eye and is focused onto the retina at the back of the eye, which then converts these images into electrical signals and sends them on to the brain to interpret and make sense of. The sclera (white part of the eye) and eyelashes are also visible here. Width of image is 5 cm.

Human eye

Human nerves.

Human motives

Colour-enhanced scanning electron micrograph of a human hair.

Human hair

Photomacrograph of a sample of human saliva. Saliva is a watery liquid produced in the salivary glands and secreted into the oral cavity. It is composed of approximately 99% water together with electrolytes, enzymes, immunoglobulins, other proteins, urea, ammonia and some sugars. On average a healthy person will produce 1-1.5 L of saliva a day. Saliva aids taste, protection, lubrication, dilution, cleaning, buffering, digestion and tissue repair, as well as having anti-bacterial and anti-fungal properties. Analysing saliva provides an increasingly useful secondary means of diagnosing illness and monitoring health. If saliva production is altered, for example loss of salivary gland function after head and neck radiotherapy, this can lead to dry mouth (xerostomia), a decline in dental/oral health and increased risk of tooth decay. Width of image is 1 cm.

Human saliva

Molecular model of human C-reactive protein (CRP) showing its pentameric structure. The levels of this protein in the plasma increase greatly - up to 1000-fold - in response to tissue damage and inflammation. It is measured in clinical tests as a marker for inflammation and infection.

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The human foot and the human hand

Human physiology

Human torso.

Human embryology

Human origins

Human eye

Human physiology

Human physiology

Human nerves.

Human motives

Human hair

Human saliva

Human CRP

Human heredity

Human physiology

Human physiology

Human physiology

Human improvability

Human energy

Human ecology

Human cytogenetics

Human physiology

Human embryology

Human character

Human chromosomes

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Filter by

The human foot and the human hand

Human physiology

Human torso.

Human embryology

Human origins

Human eye

Human physiology

Human physiology

Human nerves.

Human motives

Human hair

Human saliva

Human CRP

Human heredity

Human physiology

Human physiology

Human physiology

Human improvability

Human energy

Human ecology

Human cytogenetics

Human physiology

Human embryology

Human character

Human chromosomes

Be the first to know

Wellcome collectionWellcome Collection

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Opening times:

Today's opening times

Wellcome collection