muscle Attachment Of The Humerus Flashcards
What is the anatomical term for the upper arm bone?
Humerus
True or False: The humerus articulates with the scapula at the shoulder joint.
True
Which muscle attaches to the greater tubercle of the humerus?
Supraspinatus
Fill in the blank: The _____ is the muscle responsible for flexing the elbow and attaches to the coronoid process of the ulna.
Biceps brachii
What muscle attaches to the lesser tubercle of the humerus?
Subscapularis
Which muscles are known to insert at the deltoid tuberosity of the humerus?
Deltoid muscle
True or False: The triceps brachii originates from the humerus.
False
What is the primary action of the rotator cuff muscles?
Stabilizing the shoulder joint
Which part of the humerus is associated with the attachment of the teres major muscle?
Medial lip of the intertubercular sulcus
Which muscle is responsible for the extension of the elbow and attaches to the olecranon?
Triceps brachii
What is the name of the groove on the humerus where the biceps tendon runs?
Intertubercular sulcus
True or False: The brachialis muscle attaches to the anterior surface of the humerus.
True
What is the function of the coracobrachialis muscle?
Flexion and adduction of the arm
Which muscle originates from the lateral border of the scapula and attaches to the humerus?
Teres minor
Fill in the blank: The muscle that inserts on the medial condyle of the humerus is the _____ muscle.
Flexor carpi ulnaris
What muscle attaches to the lateral epicondyle of the humerus?
Extensor carpi radialis brevis
True or False: The pectoralis major muscle attaches to the humerus.
True
Which muscle has its origin at the spinous processes of the thoracic vertebrae and attaches to the humerus?
Latissimus dorsi
What is the primary function of the deltoid muscle?
Abduction of the arm
Which muscle is responsible for medial rotation of the arm and attaches to the lesser tubercle of the humerus?
Subscapularis
Fill in the blank: The _____ muscle attaches to the humerus and is involved in shoulder flexion.
Pectoralis major
Which rotator cuff muscle is responsible for external rotation of the arm?
Infraspinatus
True or False: The humerus has a head that articulates with the radius.
False
What is the name of the muscle that originates from the supraglenoid tubercle and attaches to the radial tuberosity?
Biceps brachii
Which muscle inserts on the posterior aspect of the humerus?
Triceps brachii
Fill in the blank: The _____ muscle is a primary flexor of the forearm that attaches to the distal humerus.
Brachialis
Which muscle is involved in shoulder extension and attaches to the humerus?
Latissimus dorsi
True or False: The teres major and minor have similar attachment sites on the humerus.
False
What is the function of the extensor muscles that originate from the lateral epicondyle of the humerus?
Extension of the wrist and fingers
Which muscle is known for its role in shoulder abduction and attaches to the deltoid tuberosity?
Deltoid
Fill in the blank: The _____ muscle is a strong supinator of the forearm that does not attach to the humerus.
Supinator
What structure is formed by the attachment of the biceps brachii tendon to the humerus?
Bicipital groove
True or False: The coracobrachialis muscle is primarily responsible for shoulder abduction.
False
Which muscle provides stability to the shoulder and attaches to the humerus?
Rotator cuff muscles
What is the primary role of the pectoralis minor in relation to the humerus?
It does not attach to the humerus directly but stabilizes the scapula.
Fill in the blank: The _____ muscle is responsible for the medial rotation of the humerus and attaches to the greater tubercle.
Teres major
Which muscle originates from the lateral border of the scapula and stabilizes the shoulder joint?
Teres minor
