L13 Muscle Form and Concentric Action

Which muscle has two origins on the scapula, 3 bodies, and one insertion to the humerus?

The middle belly of the deltoid contributes most to adduction of the arm.

Choose the incorrect statement. EXCLUDE the knee joint for this question!

It is the triceps brachii which allows supination at the radioulnar joint.

Choose the correct statement about the triceps brachii.

Which muscle allows rotation of the hip and originates from the vertebrae and hip?

The gluteus maximus originates from the [blank_start]sacrum and the pelvis[blank_end], and inserts on the [blank_start]iliotibial band[blank_end]. It is the main contributor for [blank_start]extension[blank_end] of the leg/over the hip joint.

The quadriceps femoris originates from the [blank_start]pelvis and femur[blank_end], attaches to the [blank_start]tibia[blank_end] via the [blank_start]patellar tendon[blank_end], and allows extension of the knee.

The hamstrings originate from the pelvis and femur, and insert in one place, on the tibia.

Where does the tibialis anterior insert and which motion does it elicit?

The triceps surae orginates from the femur, tibia, and fibula.