Mbi - Muscle Test 2

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  • 1/74 Questions
    Please identify the muscle. - ProProfs

    Please identify the muscle.

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About This Quiz

MBI - Muscle Test 2 focuses on the anatomy and actions of upper limb muscles, specifically the biceps brachii and brachialis. Participants will identify muscle origins, insertions, actions, and associated structures, enhancing their understanding of muscular functions in the human body.

Mbi - Muscle Test 2 - Quiz

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  • 2. 
    Please identify the muscle. - ProProfs

    Please identify the muscle.

    Explanation
    The muscle identified in the question is the infraspinatus.

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  • 3. 
    Please identify the muscle. - ProProfs

    Please identify the muscle.

    Explanation
    The muscle identified in the given question is the Latissimus Dorsi. The Latissimus Dorsi is a large, flat muscle that spans across the lower back and extends up to the armpit. It is responsible for various movements of the shoulder joint, such as pulling the arm down and back, rotating the arm inwards, and assisting in activities like swimming, rowing, and climbing.

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  • 4. 
    Please identify the muscle. - ProProfs

    Please identify the muscle.

    Explanation
    The muscle identified is the Pectoralis Major.

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  • 5. 
    Please identify the muscle. - ProProfs

    Please identify the muscle.

    Explanation
    The muscle identified in the question is the Pectoralis Minor.

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  • 6. 
    Please identify the muscle. - ProProfs

    Please identify the muscle.

    Explanation
    The correct answer is Rhomboids. The rhomboids are a pair of muscles located in the upper back between the shoulder blades. They help retract and stabilize the scapulae (shoulder blades) by pulling them towards the spine. These muscles play a crucial role in maintaining good posture and are often targeted in exercises that aim to strengthen the upper back.

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  • 7. 
    Please identify the muscle. - ProProfs

    Please identify the muscle.

    Explanation
    The correct answer is Subscapularis.

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  • 8. 
    Please identify the muscle. - ProProfs

    Please identify the muscle.

    Explanation
    The muscle identified in the question is the supraspinatus.

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  • 9. 
    Please identify the muscle. - ProProfs

    Please identify the muscle.

    Explanation
    The muscle identified in the question is the Teres Major.

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  • 10. 
    Please identify the muscle. - ProProfs

    Please identify the muscle.

    Explanation
    The muscle that needs to be identified is the Teres Minor.

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  • 11. 
    Please identify the muscle. - ProProfs

    Please identify the muscle.

    Explanation
    The correct answer is Biceps Brachii. The biceps brachii is a muscle located in the upper arm. It is a two-headed muscle that runs from the shoulder to the elbow. The biceps brachii is responsible for flexing the elbow joint and supinating the forearm. It is a prominent muscle that is often associated with strength and is commonly targeted in arm exercises.

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  • 12. 

    Which muscle is located in the space between the vertebral column and scapula?

    • Serratus anterior

    • Rhomboids

    • Levator scapula

    • Latissimus dorsi

    Correct Answer
    A. Rhomboids
    Explanation
    The rhomboids are the muscles located in the space between the vertebral column and scapula. These muscles play a crucial role in retracting the scapulae (pulling them towards the spine) and stabilizing the shoulder blades. They work together with other muscles to maintain proper posture and facilitate movements of the upper back and shoulders. The serratus anterior muscle is located along the lateral sides of the rib cage, the levator scapulae muscle elevates the scapula, and the latissimus dorsi muscle is located on the back and helps with movements of the shoulder joint.

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  • 13. 
    Please identify the muscle. - ProProfs

    Please identify the muscle.

    Correct Answer
    Levator Scapula
    Explanation
    The muscle being identified is the Levator Scapula.

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  • 14. 

    Which of the following is an action of the infraspinatus?

    • Medially rotate the shoulder

    • Laterally rotate the shoulder

    • Abduct the shoulder

    • Flex the shoulder

    Correct Answer
    A. Laterally rotate the shoulder
    Explanation
    The infraspinatus is a muscle located in the shoulder joint. Its main action is to laterally rotate the shoulder. This means that it helps to move the arm away from the midline of the body, rotating it outward. This action is important for various movements such as throwing, reaching, and lifting objects to the side.

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  • 15. 

    Which muscle is a complete synergist with the latissimus dorsi and is sometimes called "lat's little helper"?

    • Teres minor

    • Teres major

    • Infraspinatus

    • Trapezius

    Correct Answer
    A. Teres major
    Explanation
    The teres major muscle is a complete synergist with the latissimus dorsi, meaning that it assists and works together with the latissimus dorsi to perform certain movements. It is sometimes referred to as "lat's little helper" because it helps the latissimus dorsi in actions such as extending, adducting, and internally rotating the arm at the shoulder joint. The teres major muscle is located on the back of the upper arm and is responsible for various movements involving the shoulder.

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  • 16. 

    What is the shared attachment site for three out of four rotator cuff muscles?

    • Deltoid tuberosity

    • Acromion

    • Greater tubercle

    • Coracoid process

    Correct Answer
    A. Greater tubercle
    Explanation
    The greater tubercle is the shared attachment site for three out of four rotator cuff muscles. The rotator cuff muscles include the supraspinatus, infraspinatus, teres minor, and subscapularis. The supraspinatus, infraspinatus, and teres minor muscles all attach to the greater tubercle of the humerus bone. This attachment allows these muscles to help stabilize and move the shoulder joint. The coracoid process is not a shared attachment site for the rotator cuff muscles.

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  • 17. 

    Which is the insertion of the supraspinatus?

    • Coracoid process of scapula

    • Greater tubercle of humerus

    • Lesser tubercle of humerus

    • Angle of the acromion

    Correct Answer
    A. Greater tubercle of humerus
    Explanation
    The insertion of the supraspinatus muscle is the greater tubercle of the humerus. This means that the supraspinatus muscle attaches to the bony prominence on the upper part of the humerus called the greater tubercle. This insertion point allows the supraspinatus muscle to play a role in shoulder movement and stability. The other options mentioned, such as the coracoid process of the scapula, lesser tubercle of the humerus, and angle of the acromion, are not the correct insertion points for the supraspinatus muscle.

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  • 18. 

    Which of the following is an action of the supraspinatus?

    • Adduct the shoulder

    • Medially rotate the shoulder

    • Abduct the shoulder

    • Elevate the scapula

    Correct Answer
    A. Abduct the shoulder
    Explanation
    The supraspinatus muscle is responsible for the abduction of the shoulder. Abduction refers to the movement of the arm away from the midline of the body. This muscle is located on the upper part of the scapula and plays a key role in stabilizing and initiating the movement of the shoulder joint. When the supraspinatus muscle contracts, it helps to lift the arm out to the side, allowing for the abduction of the shoulder.

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  • 19. 

    Which is the origin of the infraspinatus?

    • Inferior half of lateral border of scapula

    • Spine of the scapula

    • Infraspinous fossa of scapula

    • Medial border of scapula

    Correct Answer
    A. Infraspinous fossa of scapula
    Explanation
    The origin of the infraspinatus muscle is the infraspinous fossa of the scapula. This is the specific area on the posterior (back) side of the scapula where the muscle originates. The other options mentioned, such as the inferior half of the lateral border of the scapula, the spine of the scapula, and the medial border of the scapula, are not the correct origins for the infraspinatus muscle.

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  • 20. 

    Which is the insertion of the brachialis?

    • Medial epicondyle of humerus

    • Tuberosity and coronoid process of ulna

    • Head of radius

    • Radial tuberosity

    Correct Answer
    A. Tuberosity and coronoid process of ulna
    Explanation
    The insertion of the brachialis muscle is on the tuberosity and coronoid process of the ulna. This means that the brachialis muscle attaches to these specific parts of the ulna bone.

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  • 21. 

    In anatomical position, you will find the extensor group on which portion of the forearm?

    • Posterior / lateral

    • Anterior / medial

    • The distal half

    • The "bald" side

    Correct Answer
    A. Posterior / lateral
    Explanation
    In anatomical position, the extensor group is located on the posterior/lateral portion of the forearm. This means that the extensor muscles, which are responsible for extending the wrist and fingers, are found on the back side (posterior) and outer side (lateral) of the forearm.

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  • 22. 

    Which is the insertion of the deltoid?

    • Greater tubercle of humerus

    • Deltoid tuberosity

    • Coracoid process of scapula

    • Lesser tubercle of humerus

    Correct Answer
    A. Deltoid tuberosity
    Explanation
    The insertion of the deltoid muscle is the deltoid tuberosity. The deltoid tuberosity is a rough, bony prominence located on the lateral side of the humerus, towards the middle of the bone. This is where the tendon of the deltoid muscle attaches, allowing it to exert its action on the arm. The deltoid muscle is responsible for various movements of the shoulder joint, including abduction, flexion, and extension.

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  • 23. 

    Which shoulder movement would shorten the fibers of the infraspinatus?

    • Medial rotation

    • Abduction

    • Lateral rotation

    • Flexion

    Correct Answer
    A. Lateral rotation
    Explanation
    Lateral rotation would shorten the fibers of the infraspinatus. The infraspinatus is one of the muscles responsible for rotating the shoulder. Lateral rotation refers to the movement of rotating the shoulder away from the midline of the body. When the shoulder is laterally rotated, the fibers of the infraspinatus muscle are contracted and shortened, causing the movement.

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  • 24. 

    What is the thin sheet of fascia extending off the distal tendon of the biceps brachii?

    • Bicipital retinaculum

    • Bicipital periosteum

    • Bicipital aponeurosis

    • Bicipital perimysium

    Correct Answer
    A. Bicipital aponeurosis
    Explanation
    The thin sheet of fascia that extends off the distal tendon of the biceps brachii is called the bicipital aponeurosis. This structure helps to strengthen and stabilize the distal tendon of the biceps brachii, providing support and preventing excessive movement. It acts as a continuation of the tendon and helps to distribute the forces generated by the muscle. The bicipital aponeurosis also serves as an attachment site for other muscles and fascial layers in the arm.

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  • 25. 

    Which muscle creates a helpful dividing line between the flexors and extensors of the wrist and hand?

    • Brachioradialis

    • Brachialis

    • Coracobrachialis

    • Biceps brachii

    Correct Answer
    A. Brachioradialis
    Explanation
    The brachioradialis muscle is located in the forearm and runs along the lateral side of the arm. It acts as a dividing line between the flexors and extensors of the wrist and hand. This muscle helps to stabilize the wrist and assist in movements such as flexion and extension. It is an important muscle for maintaining proper alignment and balance between the flexor and extensor muscles in the forearm.

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  • 26. 

    The origin of the deltoid is identical to the insertion of which muscle?

    • Brachialis

    • Trapezius

    • Supraspinatus

    • Pectoralis major

    Correct Answer
    A. Trapezius
    Explanation
    The deltoid muscle originates from the lateral third of the clavicle, acromion, and spine of the scapula. The insertion of the deltoid is on the deltoid tuberosity of the humerus. The trapezius muscle, on the other hand, originates from the occipital bone, spinous processes of the cervical and thoracic vertebrae, and the ligamentum nuchae. It inserts onto the clavicle, acromion, and spine of the scapula. Therefore, the origin of the deltoid is identical to the insertion of the trapezius muscle.

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  • 27. 

    Which shoulder movement would shorten the fibers of the supraspinatus?

    • Flexion

    • Extension

    • Adduction

    • Abduction

    Correct Answer
    A. Abduction
    Explanation
    Abduction is the correct answer because it refers to the movement of the arm away from the midline of the body. When the arm is abducted, the fibers of the supraspinatus muscle are shortened. This muscle is located on the top of the shoulder and is responsible for initiating the movement of abduction. By shortening its fibers, the supraspinatus helps to lift the arm away from the body.

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  • 28. 

    Which of the following is a part of the origin of the trapezius?

    • Transverse processes of thracic vertebrae

    • Spine of the scapula

    • External occipital protuberance and medial portion of superior nuchal line of occiput

    • Spinous processes of upper cervical vertebrae

    Correct Answer
    A. External occipital protuberance and medial portion of superior nuchal line of occiput
    Explanation
    The origin of the trapezius muscle includes the external occipital protuberance and the medial portion of the superior nuchal line of the occiput. These structures are located on the back of the skull and provide attachment points for the trapezius muscle. The trapezius muscle is a large, triangular muscle that extends from the base of the skull down to the thoracic spine and laterally to the spine of the scapula. It is involved in movements of the shoulder girdle, such as elevation, retraction, and rotation of the scapula.

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  • 29. 

    Which of the following is an action of the levator scapula?

    • Rotate head and neck to the opposite side

    • Upwardly rotate the scapula

    • Elevate the scapula

    • Depress the scapula

    Correct Answer
    A. Elevate the scapula
    Explanation
    The levator scapula is a muscle responsible for elevating the scapula, which means it helps to lift the shoulder blade upwards. This action is important for various movements of the shoulder and arm, such as lifting objects or reaching overhead. The other options mentioned in the question, such as rotating the head and neck to the opposite side or depressing the scapula, are not actions of the levator scapula.

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  • 30. 

    The pectoralis minor is located deep to which muscle?

    • Serratus anterior

    • Pectoralis major

    • Deltoid

    • Trapezius

    Correct Answer
    A. Pectoralis major
    Explanation
    The pectoralis minor is located deep to the pectoralis major muscle. The pectoralis major is a large muscle that covers the upper part of the chest, while the pectoralis minor is a smaller muscle that lies underneath it. This arrangement allows the pectoralis major to provide the main bulk and strength to the chest, while the pectoralis minor assists in movements of the shoulder and scapula.

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  • 31. 

    Which of the following is the only muscle of the posterior arm?

    • Triceps brachii

    • Biceps brachii

    • Coracobrachialis

    • Brachilais

    Correct Answer
    A. Triceps brachii
    Explanation
    The triceps brachii is the only muscle of the posterior arm. It is a three-headed muscle located on the back of the upper arm. It is responsible for extending the forearm at the elbow joint. The biceps brachii is a muscle of the anterior arm, while the coracobrachialis and brachialis are also muscles of the anterior arm. Therefore, the triceps brachii is the correct answer as it is the only muscle listed that belongs to the posterior arm.

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  • 32. 

    Which is the origin of the deltoid?

    • Shaft of clavicle, acromion and superior angle of scapula

    • Medial two-thirds of clavicle, angle of acromion and spine of scapula

    • Lateral one-third of clavicle, acromion and spine of scapula

    • Medial one-third of clavicle, lateral border of scapula

    Correct Answer
    A. Lateral one-third of clavicle, acromion and spine of scapula
    Explanation
    The deltoid muscle originates from the lateral one-third of the clavicle, the acromion, and the spine of the scapula. This means that these three structures provide the attachment site for the deltoid muscle, allowing it to perform its functions such as shoulder abduction and flexion. The other options mentioned do not accurately describe the origin of the deltoid muscle.

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  • 33. 

    Which of the following is an action of the biceps brachii?

    • Flex the elbow

    • Pronate the forearm

    • Depress the scapula

    • Abduct the shoulder

    Correct Answer
    A. Flex the elbow
    Explanation
    The biceps brachii is a muscle located in the upper arm that is responsible for flexing the elbow joint. When the biceps brachii contracts, it causes the forearm to move towards the upper arm, resulting in the bending of the elbow. This action is commonly used in activities such as lifting objects or performing bicep curls.

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  • 34. 

    Which is the insertion of the latissimus dorsi

    • Intertubercular groove of the humerus

    • Crest of the greater tubercle of humerus

    • Shaft of the humerus

    • Angle of acromion

    Correct Answer
    A. Intertubercular groove of the humerus
    Explanation
    The correct answer is the intertubercular groove of the humerus. The latissimus dorsi muscle is a large muscle of the back that originates from the lower back and inserts into the upper arm. It attaches to the humerus bone by inserting into the intertubercular groove, which is a groove located between the two tubercles of the humerus bone. This attachment allows the latissimus dorsi muscle to play a role in various movements of the shoulder and arm, such as extension, adduction, and internal rotation.

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  • 35. 

    Which of the following is a part of the origin of the pectoralis major?

    • Cartilage of ribs 7 - 12

    • Medial half of clavicle and sternum

    • Sternum, xiphoid process and linea alba

    • Lateral half of clavicle and coracoid process

    Correct Answer
    A. Medial half of clavicle and sternum
    Explanation
    The pectoralis major is a large muscle in the chest region. It originates from the medial half of the clavicle (collarbone) and the sternum (breastbone). This means that the muscle attaches to and originates from these two bones. The other options listed, such as the cartilage of ribs 7-12, the sternum, xiphoid process, and linea alba, and the lateral half of the clavicle and coracoid process, are not part of the origin of the pectoralis major. Therefore, the correct answer is the medial half of the clavicle and sternum.

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  • 36. 

    Which of the following is an action of the pectoralis major's upper fibers?

    • Horizontally abduct the shoulder

    • Horizontally adduct the shoulder

    • Extend the shoulder

    • Laterally rotate the shoulder

    Correct Answer
    A. Horizontally adduct the shoulder
    Explanation
    The pectoralis major's upper fibers are responsible for horizontally adducting the shoulder. This means that they bring the arm closer to the midline of the body when it is already abducted or extended. This action is commonly seen when hugging someone or crossing the arms in front of the body.

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  • 37. 

    The rhomboids are superficial to the erector spinae and deep to which muscle?

    • Trapezius

    • Serratus anterior

    • Latissimus dorsi

    • Levator scapula

    Correct Answer
    A. Trapezius
    Explanation
    The rhomboids are located between the erector spinae muscles and the trapezius muscle. They are superficial to the erector spinae and deep to the trapezius muscle.

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  • 38. 

    Which of the following is an action of the brachioradialis?

    • Extend of the elbow

    • Flex the wrist

    • Flex the elbow

    • Extend the wrist

    Correct Answer
    A. Flex the elbow
    Explanation
    The brachioradialis is a muscle located in the forearm. Its main action is to flex the elbow joint. When the brachioradialis contracts, it helps to bend the forearm towards the upper arm. This muscle is responsible for movements such as lifting objects or performing a bicep curl. It does not have any significant role in extending the elbow, flexing the wrist, or extending the wrist.

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  • 39. 

    Which rotator cuff muscle creates shoulder abduction?

    • Supraspinatus

    • Infraspinatus

    • Teres minor

    • Subscapularis

    Correct Answer
    A. Supraspinatus
    Explanation
    The supraspinatus muscle is responsible for shoulder abduction. It is one of the four muscles that make up the rotator cuff, located on the top of the shoulder blade. When the supraspinatus muscle contracts, it helps to lift the arm away from the body, allowing for abduction of the shoulder joint. This muscle is commonly involved in rotator cuff injuries and is important for maintaining shoulder stability and range of motion.

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  • 40. 

    Which is the insertion of the infraspinatus?

    • Greater tubercle of humerus

    • Head of the humerus

    • Spinous process of C-7

    • Lesser tubercle of humerus

    Correct Answer
    A. Greater tubercle of humerus
    Explanation
    The insertion of the infraspinatus muscle is the greater tubercle of the humerus. This means that the infraspinatus muscle attaches to the larger bump on the upper end of the humerus bone.

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  • 41. 

    Which is the origin of the subscapularis?

    • Subscapular fossa of scapula

    • Greater tubercle of humerus

    • Supraspinous fossa of scapula

    • Medial border of scapula

    Correct Answer
    A. Subscapular fossa of scapula
    Explanation
    The subscapularis muscle originates from the subscapular fossa of the scapula. This fossa is located on the anterior surface of the scapula, and it provides the attachment site for the subscapularis muscle. The greater tubercle of the humerus is the insertion point for the subscapularis muscle, not the origin. The supraspinous fossa of the scapula is the origin of the supraspinatus muscle, not the subscapularis. The medial border of the scapula is not the origin of the subscapularis muscle.

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  • 42. 

    Which is the origin of the supraspinatus?

    • Supraspinous fossa of scapula

    • Lesser tubercle of humerus

    • Supraspinous crest of scapula

    • Greater tubercle of humerus

    Correct Answer
    A. Supraspinous fossa of scapula
    Explanation
    The supraspinatus muscle originates from the supraspinous fossa of the scapula. This is a shallow depression located on the posterior aspect of the scapula, above the spine of the scapula. The supraspinatus muscle plays an important role in shoulder abduction and stabilization of the shoulder joint.

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  • 43. 

    Which is the insertion of the teres minor?

    • Lesser tubercle of humerus

    • Supraglenoid tubercle of scapula

    • Greater tubercle of humerus

    • Infraglenoid tubercle of scapula

    Correct Answer
    A. Greater tubercle of humerus
    Explanation
    The teres minor muscle is inserted on the greater tubercle of the humerus. This means that the muscle attaches to the bony prominence on the lateral side of the humerus. The greater tubercle is located just above the surgical neck of the humerus and serves as a point of attachment for various muscles, including the teres minor.

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  • 44. 

    Which of the following is an action of the brachialis?

    • Flex the elbow

    • Pronate the forearm

    • Extend the elbow

    • Supinate the forearm

    Correct Answer
    A. Flex the elbow
    Explanation
    The brachialis is a muscle located in the upper arm. Its main action is to flex the elbow joint, which means it is responsible for bending the arm at the elbow. This action is important for various everyday activities such as lifting objects, throwing a ball, or performing bicep curls. The brachialis works in conjunction with other muscles in the arm to provide strength and stability during elbow flexion.

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  • 45. 

    Which is the origin of the brachiordialis?

    • Distal shaft of humerus

    • Medial epicondyle of humerus

    • Medial supracondylar ridge of humerus

    • Proximal two-thirds of the lateral supracondylar ridge of humerus

    Correct Answer
    A. Proximal two-thirds of the lateral supracondylar ridge of humerus
    Explanation
    The origin of the brachiordialis is the proximal two-thirds of the lateral supracondylar ridge of the humerus.

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  • 46. 

    Which of the following is a part of the origin of the latissimus dorsi?

    • Lateral border of scapula

    • Anterior superior iliac crest

    • Greater tubercle of humerus

    • Thoracolumbar aponeurosis

    Correct Answer
    A. Thoracolumbar aponeurosis
    Explanation
    The latissimus dorsi muscle originates from the thoracolumbar aponeurosis. The thoracolumbar aponeurosis is a broad, flat tendon that covers the lower back and connects to the spine and the iliac crest. It serves as an attachment point for several muscles, including the latissimus dorsi. This muscle plays a role in shoulder extension, adduction, and medial rotation, as well as in stabilizing the lower back. The other options listed (lateral border of scapula, anterior superior iliac crest, and greater tubercle of humerus) are not part of the origin of the latissimus dorsi muscle.

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  • 47. 

    In which part of the body does lateral flexion occur?

    • Shoulder joint

    • Scapula

    • Axial skeleton

    • Feet

    Correct Answer
    A. Axial skeleton
    Explanation
    Lateral flexion refers to the movement of bending the body sideways. This movement primarily occurs in the axial skeleton, which includes the skull, vertebral column, and rib cage. The shoulder joint allows for movement in multiple directions but is not specifically responsible for lateral flexion. The scapula is a bone in the shoulder girdle and does not directly participate in lateral flexion. The feet are not involved in lateral flexion as they primarily provide support and balance. Therefore, the axial skeleton is the correct answer as it is the main region where lateral flexion occurs.

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  • 48. 

    Which is the insertion of the triceps brachii?

    • Olecranon process of ulna

    • Tuberosity of radius

    • Medial epicondyle of humerus

    • Shaft of ulna

    Correct Answer
    A. Olecranon process of ulna
    Explanation
    The correct answer is the olecranon process of the ulna. The triceps brachii is a muscle that is responsible for extending the forearm. It is attached to the olecranon process of the ulna, which is a bony prominence at the back of the elbow. When the triceps brachii contracts, it pulls on the olecranon process, causing the forearm to straighten. The other options mentioned, such as the tuberosity of the radius, medial epicondyle of the humerus, and shaft of the ulna, are not sites of insertion for the triceps brachii muscle.

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  • 49. 

    Which of the following is an action of all fibers of the deltoid?

    • Abduct the shoulder

    • Extend the shoulder

    • Pronate the shoulder

    • Medially rotate the shoulder

    Correct Answer
    A. Abduct the shoulder
    Explanation
    The deltoid is a muscle located in the shoulder that is responsible for various movements of the arm. One of its main actions is to abduct the shoulder, which means to move the arm away from the body. This movement is commonly seen when raising the arm sideways. Therefore, the correct answer is "abduct the shoulder".

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Quiz Review Timeline (Updated): Dec 8, 2023 +

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  • Dec 08, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Apr 16, 2012
    Quiz Created by
    Dawnnoelle
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