Upper Limb Anatomy Quiz

A joint between the clavicle and the sternum, allowing for elevation, depression, protraction, retraction, and some rotation of the clavicle.

A joint between the clavicle and the acromion of the scapula, providing stability to the shoulder joint.

The ball-and-socket joint that allows for a wide range of motion in the shoulder, connecting the head of the humerus with the glenoid fossa of the scapula.

A large, flat muscle that covers the back of the neck and upper back, responsible for scapular movements such as elevation, retraction, and rotation, as well as neck extension.

A broad, flat muscle in the back that assists in adduction, extension, and medial rotation of the shoulder joint.

A nerve that innervates the trapezius muscle, responsible for controlling its movements.

A nerve responsible for innervating the latissimus dorsi muscle, controlling its movements.

The actions of the latissimus dorsi muscle are to adduct, extend, and medially rotate the shoulder joint.

The anterior deltoid muscle is responsible for flexing the shoulder and rotating it inwards.

The lateral deltoid muscle is responsible for raising your arm away from your body, or moving it sideways.

The posterior deltoid muscle is responsible for extending the shoulder and rotating it outwards.

The infraspinatus muscle is responsible for externally rotating the shoulder joint.

The supraspinatus muscle is responsible for abducting the shoulder, or lifting your arm away from your body.

The supraspinatus muscle originates from the supraspinous fossa, a depression on the back of the scapula, and inserts on the greater tubercle of the humerus.

The infraspinatus muscle originates from the infraspinous fossa, a depression on the back of the scapula, and inserts on the greater tubercle of the humerus.

The deltoid muscle is supplied by the axillary nerve, which is responsible for sending signals to the muscle so it can contract.

The teres major muscle is a thick, short muscle located in the posterior shoulder. It originates on the lateral border of the scapula and inserts on the medial lip of the bicipital groove of the humerus.

The teres minor muscle, found beneath the teres major, also originates on the lateral border of the scapula but inserts on the greater tubercle of the humerus.

The rhomboid major is a large muscle located in the upper back. It originates on the spinous processes of vertebrae T2-T5 and inserts on the medial border of the scapula.

The rhomboid minor muscle, smaller than its counterpart, also originates on the spinous processes but of vertebrae C7 - T1, and inserts on the medial border of the scapula, slightly superior to the rhomboid major.

The levator scapulae muscle is a long, thin muscle that originates on the transverse processes of the upper cervical vertebrae (C1-C4). It inserts onto the medial border of the scapula, near the superior angle.

The subscapularis muscle, the largest muscle in the rotator cuff, originates from the subscapular fossa of the scapula and inserts onto the lesser tubercle of the humerus.

The subscapularis muscle is innervated by both the upper and lower subscapular nerves, ensuring coordinated movement.

The teres minor muscle, located in the rotator cuff, is innervated by the axillary nerve. This nerve also provides sensation to the skin of the deltoid region.