The penis is not a muscle.
It is made of erectile tissue, blood vessels, nerves, and connective tissue.
It has two corpora cavernosa and one corpus spongiosum.
An erection happens when blood fills these tissues and gets trapped.
Nearby pelvic muscles help, but the penis itself does not flex like a muscle.
🧠🩸

#General_knowledgeTM

Eggs contain tyrosine, from which the body synthesizes norepinephrine and dopamine, which improve mood and give a feeling of cheerfulness.

#General_knowledgeTM

Broccoli is a human invention. It was bred out of the wild cabbage plant, Brassica oleracea.

#General_knowledgeTM

British Army soldier, Craig Harrison, once held the record for the longest confirmed sniper kill in combat. The Corporal of Horse shot from a distance of 2,475 meters (1.5 miles), and the bullet took over six seconds to reach the target and dropped 120.95 m (396.8 ft).

#General_knowledgeTM

Brushing Teeth too soon after eating or drinking can soften the tooth enamel.

#General_knowledgeTM

In the Maldives, you can find beaches where the sea glows at night due to bioluminescent plankton, creating a magical spectacle.

#General_knowledgeTM

Rabbits can see behind themselves without moving their heads due to their laterally placed eyes. Their only, small blind spot is directly in front of their nose.

#General_knowledgeTM

In the main office of Google, there are special sleep capsules that block out light and outside noises.

#General_knowledgeTM

The Ethiopian bible is the oldest, most complete and original bible on earth.

Written on goat skin in the early Ethiopian language of Ge’ez. It is also World’s first illustrated Christian Bible.

#General_knowledgeTM

The modern doorknob was invented in 1878 by 16 year old African American inventor called Osbourn Dorsey

#General_knowledgeTM

Okunoshima is a small island in Japan where thousands of rabbits live.

#General_knowledgeTM

Sloths come down from trees once a week to defecate.

#General_knowledgeTM

HYPOPITUITARISM is a rare disease doesn't allow a person to feel love.

#General_knowledgeTM

Clean your iron by putting salt on wax paper and ironing it.

It really works!

#General_knowledgeTM

Rwanda was the first country to ban plastic bags in 2008.

#General_knowledgeTM

Breathalyzers are extremely inaccurate and overestimate the Blood Alcohol Content about 25% of the time, and vary about 15% from actual Blood Alcohol Content.

People with diabetes, or a fever, or who have used chemicals like oil-based paint will register Blood Alcohol Content over the legal limit even if they've had no drinks.

#General_knowledgeTM