Contrary to the incorrect believe of some, it is not the penis. Considering the average size of a flaccid penis is 3-4 inches, that would mean that it would expand to 30-40 inches!
The correct answer is: the pupils of your eyes.
When you experience pleasure, your pupils briefly dilate. Anger and fear can cause the pupils to constrict.
reproducing
To feel grief is to be unhappy or sad. If you feel grief, you are capable of feelings, and it means that you are a normal, healthy human being.
It's the range of frequencies the speakers are capable of emitting. 50Hz-20KHz is the 'normal' range of human hearing.
Bone marrow is the fastest growing tissue in the human body.
the fastest growing bone in the human body is the antlers in our body
A child who is not growing at the normal rate might benefit from human growth hormone, which can be prescribed by a doctor.
Yes, it is normal to feel sexually excited at the age of 13 years old.You are a human being with human needs and puberty will cause higher sex drive due to hormonal imbalances. It is however very important you recognize that you are too young to have sex and if anyone was to have sex with you they would be committing a very serious crime. If you feel sexually excited then you can masturbate to deal with those desires without putting yourself at risk from sexual abuse.
Muscles are capable of contracting in the human body. This allows movement, support of body structures, and distribution of substances throughout the body.
No, the human head is not capable of circumduction, which is a circular movement around an axis. The head is primarily designed for flexion, extension, rotation, and lateral flexion movements.
The human ear is capable of hearing sounds ranging from 20 to 20,000 cycles per second, or Hertz (Hz). These frequencies correspond to the audible range of human hearing.
mainly reproduction.
Between 640 and 850 muscles in a normal human's body.