Question

3:10 vil En iCloud le Î Done True or false 1. The muscles of the rotator cuff originate on the scapula. 2. When the rhomboids stabilize the scapula, the teres major can internally rotate the humerus. 3. The hamstring muscle group assists with knee extension. 4. The sartorius functions at both the hip and knee joints 5. Flexion and external rotation at the knee are performed by the biceps femoris. 6. The four quadriceps muscles each have their own insertion point. 7. 2 Aa © © © X Y'all Hey QWERTYU TOP ASDFGHJ K L + ZXCVBNM @ 123 space return

Answer 1

Ans) 1) True

Explaination:

The four muscles that form the rotator cuff are the supraspinatus, infraspinatus, teres minor, and subscapularis originate from scapula.

2) True

Explaination:

When the rhomboids stabilize the scapula, the teres major can internally rotate the humerus.
The teres major arises from the lower medial portion of the scapula and primarily acts to internally rotate the humerus.

3) True

Explaination:

The hamstring group muscles (semitendinosus, semimembranosus, and biceps femoris) flex the knee and extend the hip.

4) True

Explaination:

- The sartorius muscle is so long that it crosses and acts upon both the hip and knee joints. Acting on the hip joint, the sartorius works as a flexor, abductor, and lateral rotator of the thigh with the assistance of the other major muscles of the hip. At the knee joint the sartorius helps to flex the leg.