It is connected to the vas deferens (Spermatic cords)
What Tennessee agency is responsible for licensing pets and ensuring that they are vaccinated for rabies?
Sit-ups are the muscle strengthening activity. Running and jumping are both cardio, and stretching just warms up the muscles.
The human skull is one of the thinnest bones in the human body and is not meant for supporting very much weight or for absorbing shock like a human femur, tibula, or fibula.
the rounded shape of the skull is meant to hold a brain while the cylindrical shape of a "leg bone" is made for support and shock absorption.