01. Girls: Head and weight 0-2 years
This chart illustrates the increase in head circumference and weight between birth and two years.
Read02. Boys: Head and weight 0-2 years
Growth charts to depict boys' head circumference and weight from birth to two years.
Read 03. Girls: Height and weight 2-18 years
Here is the chart that plots a girl's height and weight from two to 18 years.
Read 04. Boys: Height and weight 2-18 years
These growth charts illustrate the average increase in height and weight between the ages two to 18 years.
Read 05. Female reproductive anatomy I
This illustration depicts a cross-section of the female reproductive system.
Read 06. Female reproductive anatomy II
This illustration depicts the outer female genitalia.
Read 07. The anatomy of intercourse
This illustration shows what happens during male-female intercourse.
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08. Male reproductive anatomy
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.
Read 09. Physiology of the erection
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.
Read 10. Physiology of the erection II
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.
Read 11. Childproof your home
Is your child safe in your home? Look at this graphic to see where all the common danger spots are.
Read 12. Allergy-free home
Look at where allergens lurk in your home and what you can do to get rid of them.
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