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An erection begins with stimulation. Then impulses from the brain travelling down the spinal column and impulses from the nerves in the penis relax the smooth muscles.
The penis is composed of paired erectile bodies. The interior of the corpus caverosum contains vascular spaces that consist of connective tissue and corporal smooth muscle.
This graphic will show you the migratory movement of birds around the world.
HIV/Aids is possibly one of the most prominent health issues facing humankind today. But how much to we actually know about how the virus attacks our bodies?
Use this interactive map to assess the malaria situation in different parts of South Africa.
Ever wondered what it's like to have the sight of someone with a vision problem, like a cataract or myopia? These visuals give you the chance to look through someone else's eyes.
An erection is the result of a series of psychological and physical events. If a problem occurs at any step in the process, the erection may be absent, insufficient or short-lived.
Ring stuck to your finger? Simply follow these steps from our First Aid Centre.
Ever wondered how a man gets an erection? And how the male body reacts to certain sexual stimuli? Take a look at this animation.
An erection begins with sensory and mental stimulation. Impulses from the brain and nerves in the penis relax the smooth muscles. Take a look at these cross-section images.
This interactive map shows you how the H5N1 avian flu virus has spread across the Far East, Europe and Africa since the first reports in 1996.
Your favourite feline friend is now on Health24 Man, bringing you a new strip every day.
Epilepsy is a condition not many people understand. This graphic is designed to track an epileptic seizure throughout the brain, and highlight the effects of epilepsy on the brain.
With a current estimated population of over 6.8 billion people, the planet is taking strain. Watch the human population of earth grow with this live graphic.
What is the average penis size in different countries? And how do other countries compare with South Africa? Take a look at what international researchers have found.
Sex addiction starts in the mind as a fantasy. The person feels compelled to act it out but feels intense shame afterwards.
