There is only one bone in the upper arm - the humerus.
Upper arm = Humerus Lower arm = Ulna and Radius
There are 3 bones in the arm. The forearm has 2 bones, the radius and ulna. The upper arm has one bone, the humerus.
The Upper Arm is made of one bone, the Humerus. There are therefore 2 Humerus bones in any mammalian skeleton.
3 in each arm
There are 32 bones in one human's arm...
The long bone in the upper arm is called the humerus.
3, the upper arm [humerus] the forearm [radius and ulna].
Three: the humerus (upper arm), ulna and radius (lower arm).
http://en.wikipedia.org/wiki/File:Illu_upper_extremity.jpg this is a pic of the arm bones I think you meant the forearm bones because they have 2, the radius and ulna. The upper arm is the humerus
The humerus is the bone of the upper arm, not the lower arm/forearm.
Your radius and ulna are in your lower arm, and the humerus is in you upper arm. The radius goes from your thumb to your humerus, crossing over the ulna which goes from your pinky to your humerus. Your humerus also connects to your scapula (or shoulder blade) in what is called a "ball and socket" - the rounded end of your humerus fits perfectly into the indent in your scapula. In your fingers, you have carpals, which are your wrist bones; metacarpals, which are the palm of your hand; and phalanges, which are your finger bones.
The elbow joint is located between the upper arm bone (humerus) in the lower arm bones (ulna and radius).