The thymus gland is known as the 'throat sweetbread' or 'heart sweetbread' depending on the part of the thymus being considered. The thymus gland has two parts. The heart sweetbread is attached to the last rib and lies near the heart, although the name may refer to its shape as much as its location.
The overall result of regular cycling is a lean, fit body with notable stamina increases. The most obvious area of muscle building during bike rides is the lower body, more specifically the legs. Cyclists build the two main muscles located in the calf: soleus and gastrocnemius. The soleus helps to lift the heel and the gastrocnemius is the prominent part of the calf that allows riders to go.
The majority of muscles in the leg are considered long muscles, in that they stretch great distances. As these muscles contract and relax, they move skeletal bones to create movement of the body. Smaller muscles help the larger muscles, stabilize joints, help rotate joints, and facilitate other fine-tuned movements.The largest muscle masses in the leg are present in the thigh and the calf.The muscles that make up the quadriceps are the strongest and leanest of all muscles in the body. These four muscles at the front of the thigh are the major extensors (help to extend the leg straight) of the knee.They are: 1  Vastus lateralis: On the outside of the thigh, this is the largest of the quadriceps.ome of the major muscles of the calf include: 1  Gastrocnemius (calf muscle) : One of the large muscles of the leg, it connects to the heel. 2  It flexes and extends the foot, ankle, and knee. 3  Soleus: This muscle extends from the back of the knee to the heel. 4  It is important in walking and standing.