| Question |
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| Answer |
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| Which muscle is called the "corkscrew" muscle? |
Biceps Brachii |
| 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 |
| What is the action of the Anconeus? |
extends elbow |
| What is the nerve for Anconeus? |
Radial nerve |
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