What muscles laterally rotate the humerus?
Infraspinatus: Originating at the infraspinous fossa of the scapula, this muscle inserts into the greater tubercle on the humerus. It laterally rotates the humerus.
What muscle adducts and laterally rotates the arm?
Named for their locations, the supraspinatus (superior to the spine of the scapula) and the infraspinatus (inferior to the spine of the scapula) abduct the arm, and laterally rotate the arm, respectively.
What is adduction humerus?
Adduction: downward movement of humerus medially toward the body from abduction, in the plane of the scapula. External rotation: the movement of humerus laterally around its long axis away from the midline. Internal rotation: the movement of humerus medially around its long axis toward the midline.
What muscle adducts and rotates the thigh?
The sartorius flexes, abducts, and laterally rotates the thigh at the hip joint. It also aids in the flexion of the knee joint and the medial rotation of the leg in this position. The sartorius is a long band-like muscle that runs lateral to medial, crossing the anterior aspect of the thigh.
Which muscle adducts and rotates the scapula downwards?
Upward rotation is accomplished by the trapezius and serratus anterior muscles. Downward rotation is accomplished by the force of gravity as well as the latissimus dorsi, levator scapulae, rhomboids, and the pectoralis major and minor muscles.
What muscle flexes abducts and laterally rotates thigh?
The sartorius
The sartorius flexes, abducts, and laterally rotates the thigh at the hip joint. It also aids in the flexion of the knee joint and the medial rotation of the leg in this position. The sartorius is a long band-like muscle that runs lateral to medial, crossing the anterior aspect of the thigh.
What muscle adducts and flexes the hip?
The pectineus muscle adducts and flexes the femur at the hip. The thigh muscles that move the femur, tibia, and fibula are divided into medial, anterior, and posterior compartments. The medial compartment includes the adductors, pectineus, and the gracilis.
Which of the following laterally rotates the hip?
The lateral rotator group is a group of six small muscles of the hip which all externally (laterally) rotate the femur in the hip joint. It consists of the following muscles: Piriformis, gemellus superior, obturator internus, gemellus inferior, quadratus femoris and the obturator externus.
What muscle abducts and rotates the thigh?
gluteus medius muscle
The gluteus medius muscle helps abducts the thigh along with the gluteus maximus, but can rotate the thigh inward where the gluteus maximus rotates the thigh outward. The below the gluteus medius are several muscles, one of which is the gluteus minimus, the smallest of the gluteal muscles.
What muscle adducts and rotates the hip?
Gluteus maximus extends, externally rotates, abducts (via its superior part), and adducts (via its inferior part) the thigh at the hip joint.