Upper: humerus. Lower: Radius and ulna
Upper is hose connected to top of radiator, lower is hose connected to bottom of radiator.
Because your upper jaw is part of your skull which is connected to your spine and your lower jaw is connected to your upper jaw by a hinge type joint that allows you to move your lower jaw so that we can eat. So therefore we cannot move our upper jaw because that would require moving our head which would move our lower jaw too.
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.
The teeth are supported by the jaw bones, specifically the maxilla (upper jaw) and mandible (lower jaw). These bones provide the structure and foundation for the teeth to attach to, as well as support the surrounding soft tissues such as gums and muscles.
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.
The tibia and fibula are connected by ligaments, which are strong bands of tissue that hold the bones together at the knee and ankle joints. Additionally, there are also muscles that attach to both bones, providing stability and allowing for movement of the lower leg.
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
That would be called the spindle.
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.