The biceps brachii, commonly known as the biceps, is a two-headed muscle that lies on the upper arm between the shoulder and the elbow. Both heads arise on the scapula and join to form a single muscle belly which is attached to the upper forearm. While the biceps crosses both the shoulder and elbow joints, its main function is at the latter where it flexes the forearm at the elbow and supinates the forearm.
Triceps brachii
The triceps brachii muscle (Latin for "three-headed muscle of the arm") is the large muscle on the back of the upper limb of many vertebrates. It is the muscle principally responsible for extension of the elbow joint (straightening of the arm).
Deltoids
The deltoid muscle is located on the outer aspect …show more content…
The two pectoralis major muscles, commonly referred to as the "pecs," are the muscles that create the bulk of the chest.
Rectus abdominis
The rectus abdominis muscle is located in the front of the body, beginning at the pubic bone and ending at the sternum. It is located inside the abdominal region. The muscle is activated while doing crunches because it pulls the ribs and the pelvis in and curves the back.
Rectus femoris
The rectus femoris muscle is one of the four quadriceps muscles of the human body. The others are the vastus medialis, the vastus intermedius (deep to the rectus femoris), and the vastus lateralis. All four parts of the quadriceps muscle attach to the patella (knee cap) via the quadriceps tendon.
Vastus lateralis
The vastus lateralis muscle is located on the side of the thigh. This muscle is the largest of the quadriceps group (often called quads) which also includes the rectus femoris, the vastus intermedius, and the vastus …show more content…
It is the most medial, or inner, of the quadriceps muscles. It extends the entire length of the thigh. Vastus intermedius
The vastus intermedius muscle is located along the upper portion of the femur, which is also known as the thighbone. This muscle covers the front part of the femur and the side of the femur. It is directly underneath and ends at the rectus femoris muscle, which is part of the quadriceps cluster of muscles. Semimembranosus
The muscle has several functions, including enabling the leg to flex and rotate, and serving as a thigh extensor. The other two muscles that make up the hamstring are the semitendinosus and biceps femoris muscles. An injury to the semimembranosus muscle is referred to as a hamstring injury.
Semitendinosus
The semitendinosus muscle is one of three hamstring muscles that are located at the back of the thigh. The other two are the semimembranosus muscle and the biceps femoris. The semitendinosus muscle lies between the other two. These three muscles work collectively to flex the knee and extend the hip Bicep