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Upper: humerus. Lower: Radius and ulna
Upper is hose connected to top of radiator, lower is hose connected to bottom of radiator.
Two joint muscles in the upper limb is the wrist and the elbow. Two joint muscles in the lower limb is the ankle and the knee.
Your "backbone" is actually a series of bones; the technical name is "spinal column", and it's a stack of bones called "vertebrae" connected by cartilage and muscles that allow it to bend and twist. At the bottom of the spine, the vertibrae connect to the pelvis, or "hip bones", which then connect to the thigh, the upper leg bones. The lowermost bone in the spine is the coccyx, or tailbone. If we had tails, that's where they would be connected.
One of them is called the ulna and the other is the radius.
What are some of the long bones found in the upper and lower extemities
That is the lower hose and the one connected to the radiator is the upper one..
Jaw
Because the chicken wing needs very many muscles to move its wing. The muscles work together when the bird is in flight to move the wing up and down.
That would be called the spindle.
Your chest (upper body), spinal cord, your lower trunk, hamstringshand muscles
The muscle is, Lattisimus dorsi, connected with upper limb at the bicipital groove and with lower limb at illiac crest.