Which muscle has a tendon of the long head that passes within the intertubercle groove of the humerus and also through the capsule of the shoulder joint itself?
Biceps Brachii
Which muscle may have a an additional head attaching to the midshaft of the humerus (approximately 10% of cadavers)
Bicep Brachii
What are the origins of the Biceps Brachii?
supraglenoid tubercle of the scapula (long head)
coracoid process of the scapula (short head)
What are the insertions of the Biceps Brachii?
radial tuberosity
bicipital aponeurosis
What are the actions of the Biceps Brachii?
flexes the elbow
supinates the forearm
flexes the shoulder
What is the nerve for Biceps Brachii?
Musculocutaneous nerve.
Which muscle is the most effective arm flexor?
Brachialis
Which muscle pushes the biceps brachii up in arm flexion from underneath to make the biceps look bigger?
Brachialis
What is the origin of the Brachialis?
distal anterior humeral shaft
What is the insertions of the Brachialis?
ulnar tuberosity
coracoid process of the ulna
What is the action of the Brachialis?
flexes the elbow
What is the nerve for the Brachialis?
Musculocutaneous nerve.
Which muscle can be palpated on the radial side of your forearm that appears to bulge?
Brachioradialis
Between which two tendons is the radial pulse located near the wrist?
Brachioradialis
Flexor Carpi Radialis
What is the origin of Brachioradialis?
lateral supracondylar ridge of the humerus
What is the insertion of the Brachioradialis?
styloid process of the radius
What is the action of Brachioradialis?
flexes the elbow
what is the nerve of Brachioradialis?
radial nerve
Which two muscles are called the "Boxer's Muscle" because they deliver the straight arm knock out punch?
Serratus Anterior
Triceps Brachii
Between which muscle's lateral and medial head dose the radial nerve sit virtually on the humerus, thus compression of this area can cause injury to the radial nerve?
Triceps Brachii
What are the origins of the Triceps Brachii?
infraglenoid tubercle of the scapula (long head)
posterior proximal humeral shaft (lateral head)
posterior distal humeral shaft (medial head)
What is the insertion of the Triceps Brachii?
Olecranon process
What are the actions of the Triceps Brachii?
extends the elbow
extends the shoulder
adducts the shoulder
What is the nerve for the Triceps Brachii?
radial nerve
What is the origin of the Anconeus?
lateral epicondyle of the humerus
What are the insertions of Anconeus?
olecranon process
superior eight (1/8) of the ulnar shaft
Buen Viaje lv.2 ch 8
