Anatomy of the Upper Limb Muscles

Play an AI-generated podcast conversation about this lesson

Which muscle has its origin on the spinous processes of T7-T12 vertebrae and is responsible for shoulder extension, adduction, and internal rotation?

Deltoid
Latissimus Dorsi (correct)
Pectoralis Major
Trapezius

Which muscle is responsible for flexion of the forearm and supination of the forearm, and has its origin on the scapula?

Triceps Brachii
Pectoralis Major
Biceps Brachii (correct)
Brachialis

Which muscle has its origin on the ilium and is responsible for hip abduction, extension, and external rotation?

Gluteus Medius and Minimus (correct)
Tensor Fascia Latae
Gluteus Maximus
Hamstrings

Which muscle has its origin on the thoracic vertebrae and is responsible for movement of the vertebral column?

Erector Spinae (B) Signup and view all the answers

Which muscle has its origin on the femur and is responsible for knee extension and hip flexion?

Quadriceps (D) Signup and view all the answers

Which muscle has its origin on the pelvis and is responsible for hip adduction, internal and external rotation, and extension?

Hip Adductors (C) Signup and view all the answers

What is the primary function of the Trapezius muscle?

Stabilization of scapula and movement of the head (C) Signup and view all the answers

Which muscle has its origin on the spinous processes of T1-T4 vertebrae?

Trapezius (C) Signup and view all the answers

What is the primary function of the Gluteus Maximus muscle?

Hip extension, external rotation, and abduction (D) Signup and view all the answers

Which muscle has its origin on the iliac crest and is responsible for hip flexion and abduction?

Tensor Fascia Latae (C) Signup and view all the answers

What is the primary function of the Brachialis muscle?

Elbow flexion and forearm pronation (D) Signup and view all the answers

Which muscle has its origin on the femur and is responsible for knee extension and hip flexion?

Quadriceps (D) Signup and view all the answers

Latissimus Dorsi

A large, flat muscle located on the back that originates from the spinous processes of T7-T12 vertebrae and inserts on the humerus. This muscle is responsible for extending, adducting, and internally rotating the shoulder.

Biceps Brachii

This muscle is located on the front of the upper arm and is responsible for flexing the forearm at the elbow and supinating the forearm. It originates from the scapula and inserts on the radius.

Gluteus Medius & Minimus

Two muscles located on the side of the hip, originating from the ilium and inserting on the femur. They mainly function to abduct, extend, and externally rotate the hip.

Erector Spinae

A group of muscles located on the back of the spine that extend from the thoracic vertebrae to the skull. They are responsible for extending, rotating, and laterally flexing the vertebral column.