The external oblique refers to two broad, thin, superficial muscles that rest on the lateral sides of the body's abdominal region; the internal oblique is immediately below the external oblique. The internal and external... More » Science Human Anatomy Muscles

Humans have two internal oblique muscles, which are located on either side of the rectus abdominis (the "six-pack" muscles). One quick way to locate them is to place a hand below the armpit and follow the side of the tor... More »

Symptoms of an oblique muscle strain include immediate pain in the afflicted area, muscle spasms, swelling and bruising. Abdominal muscle strains are graded according to severity, reports Dr. Jonathan Cluett for More »

The quadriceps are a group of four muscles located at the front and sides of the thighs. These muscles originate from the femur bone and run down to the patella or kneecap. More »

The standing lateral raise primarily works the lateral deltoid muscles, which are the muscles found on the sides of the shoulders. Synergists include the middle and lower trapezius and the anterior, or front, deltoid mus... More » Science Human Anatomy Muscles

The hip abductor muscles are a group of four muscles that stabilize the gait and control the ability of the leg to rotate away from the body. These four muscles include the gluteus minimus, the tensor fascia lata, the gl... More » Science Human Anatomy Muscles

Interesting facts about muscles include details about the number of muscles it takes to frown and walk, the strongest muscle in the body, the role of the muscles in shivering and the smallest and longest muscles in the b... More » Science Human Anatomy Muscles