The body's largest muscle by mass is the gluteus maximus, but the two latissimus dorsi are the largest in terms of surface area. Related: Why is it harder for some people to build muscle than others? Reproductive: The reproductive system allows humans to produce offspring. The male ...
The continuous exposure of humans to these chemicals raises crucial questions about its impact on health. The male reproductive system has emerged as one of the major toxicity targets of environmental toxicants. In industrialized countries, male infertility caused by exposure to environmental toxicants ...
Because we are all unique, there is no such thing as a “typical” genital appearance. The same is true for male genital anatomy. The male reproductive system primarily consists of external organs such as the penis, scrotum, and testicles. It is in charge of sexual function as well as uri...
The testicles are housed in the scrotum just behind the penis.(Image credit: Life science of anatomy/Shutterstock) The testicles are the male gonads — the primary male reproductive organs. They have two, very important functions that are very important to the male reproductive system: they produ...
(To know more about male masturbation please see: Male Masturbation: Side Effects, Benefits and Risks ) Most children play with their genitals between the ages of two and six. To a grown-up person, the sight of children fondling their own genitals can feel disturbing because he/she looks at...
the female will anchor herself inside the male via patches of spines that adorn her gynosome. This sexual Velcro is so effective that attempts to separate barklicein flagrantehave ended in tragedy, with the male torn in two, his reproductive organs still clinging to the female’s barbed ...
Learn about segmented worms, also called annelids, and about Annelida reproduction. Understand the different types of asexual and sexual...
Reproductive System (male and female reproductive organs) The Human Body Systems:The Brain and Nervous SystemThe human brain is the central command system for the whole body. It’s a mass of about 180-100 billion neurons. Neurons have multiple synapses that create a network of over 100 ...
The only difference between the female and male urinary system is the length of the urethra, according to Merck Manuals. In females, the urethra is about 1.5 to 2 inches long (3.8 to 5.1 cm) and sits between the clitoris and the vagina. In males, it is about 8 inches (20 cm) long...
Learn about HIV and AIDS with pictures, photos, and facts. Symptoms of HIV infecton can be severe or completely absent. People of color are disproportionately affected by the HIV pandemic.