The main purpose of the gastrocnemius muscle is to facilitate leg movements, such as jumping, walking, running and knee bending. The gastrocnemius muscle pushes the leg down during these types activities. The location of this muscle is the back of the leg on the calf area.Know More
The pushing action of the gastrocnemius muscle during walking causes a flexing motion of the leg at the ankle (plantar flexion) and knee joints (knee flexion).The gastrocnemius muscle also has two heads that give the muscle its diamond shape. These are the medial and the lateral heads.
Another important muscle in the calf area is the soleus muscle. These two muscles form the calf muscle, and both contribute to plantar flexion and knee flexion. Both these muscles taper and connect to the Achilles tendon that is at the bottom of the lower leg and above the heel area. In the human body, the Achilles tendon is the strongest tendon.
Many different types of injuries can involve the gastrocnemius muscle, including a torn muscle, inflammation of the muscle and a calf muscle rupture. The treatment option depends on the type of injury. For example, a complete rupture of the gastrocnemius muscle is a severe injury that requires between three to four months of recovery time and possible surgery.Learn more in Muscles
The arrector pili muscle is made to lift the hairs on the body, which causes air to get trapped between the hairs and provide a layer of insulation against the cold. These muscles can also react in cases of fear and give different results in humans than animals.Full Answer >
There are three muscles that function on the back of the leg for plantar flexion: the gastrocnemius, the soleus and the plantaris. Plantar flexion involves moving the foot downward toward the ground.Full Answer >
The main purpose of the triceps is to extend the elbow and straighten the arm. The triceps is located on the back of the arm and attaches to the upper arm around the shoulder and then again to the elbow, but it originates at the shoulder blade. The muscle works opposite to the bicep that is located on the opposite side of the arm.Full Answer >
The leg, feet and gluteus muscle groups are used in jumping. Specific muscles include the gluteus maximus, hamstrings, quadriceps, and soleus, according to HumanKinetics.com.Full Answer >