Myology of Muscles of The Arm Flashcards
How many muscles are in the muscles of the arm group?
5
Name the 5 muscles of the arm?
CORACOBRACHIALIS \+ BICEPS BRACHII \+ BRACHIALIS \+ TRICEPS BRACHII \+ ANCONEUS
(O) Superior/proximal attachment:
CORACOID PROCESS
(I) Inferior/distal attachment:
MIDDLE, MEDIAL HUMERUS
Actions:
G - H FLEXION (WEAK)
G - H ADDUCTION
CORACOBRACHIALIS
Name the 2 actions coracobrachialis is responsible for?
G - H FLEXION (WEAK)
+
G - H ADDUCTION
What is the superior/proximal attachment for coracobrachialis?
CORACOID PROCESS
What is the inferior/distal attachment for coracobrachialis?
MIDDLE, MEDIAL HUMERUS
Which muscles of the ARM attach to the coracoid process?
CORACOBRACHIALIS
+
BICEPS BRACHII
Name the prime mover for elbow flexion?
BICEPS BRACHII
(O) Superior/proximal attachment (long head):
SUPRAGLENOID TUBERCLE
(O) Superior/proximal attachment (short head):
CORACOID PROCESS
(I) Inferior/distal attachment:
RADIAL TUBEROSITY, BICIPITAL APONEUROSIS
Actions:
G - H FLEXION
ELBOW FLEXION
BICEPS BRACHII
The biceps _________ head travels through the bicipital groove to its proximal attachment.
LONG
Biceps long head has a __________ to protect it from the transverse humeral ligament.
SHEATH
The transverse humeral ligament holds which muscle in place during contraction/movement?
BICEPS BRACHII
Name the fascia which runs from the biceps tendon and merges with the fascia of the anterior forearm?
***part of inferior attachment point for biceps brachii
BICIPITAL APONEUROSIS
Name the 2 actions biceps brachii is responsible for?
G - H FLEXION
+
ELBOW FLEXION
What is the superior/proximal attachment for biceps brachii long head?
SUPRAGLENOID TUBERCLE
What is the superior/proximal attachment for biceps brachii short head?
CORACOID PROCESS
What is the inferior/distal attachment for biceps brachii?
RADIAL TUBEROSITY, BICIPITAL APONEUROSIS
(O) Superior/proximal attachment:
ANTERIOR DISTAL 1/2 OF HUMERUS
(I) Inferior/distal attachment:
ULNAR TUBEROSITY, CORONOID PROCESS
Actions:
ELBOW FLEXION
BRACHIALIS
Brachialis is __________ to biceps brachii.
DEEP
like soleus to gastroc
Name the prime mover for elbow flexion in pronation?
BRACHIALIS
What is the only action brachialis is responsible for?
ELBOW FLEXION
What is the superior/proximal attachment for brachialis?
ANTERIOR DISTAL 1/2 OF HUMERUS
What is the inferior/distal attachment for brachialis?
ULNAR TUBEROSITY, CORONOID PROCESS
(O) Superior/proximal attachment (long head):
INFRAGLENOID TUBERCLE
(O) Superior/proximal attachment (lateral head):
PORTERIOR PROXIMAL HUMERUS (SUPERIOR TO RADIAL GROOVE)
(O) Superior/proximal attachment (medial head):
POSTERIOR DISTAL HUMERUS (INFERIOR TO THE RADIAL GROOVE)
(I) Inferior/distal attachment:
OLECRANON PROCESS
Actions:
G - H EXTENSION (LONG HEAD ONLY)
ELBOW EXTENSION (ALL HEADS)
TRICEPS BRACHII
The action of G - H extension is performed specifically by triceps brachii _______ head.
LONG
All heads of triceps brachii perform which action?
ELBOW EXTENSION
ALL HEADS
What is the superior/proximal attachment for triceps brachii long head?
INFRAGLENOID TUBERCLE
The superior/proximal attachment for triceps brachii ________ head is posterior proximal humerus.
*** superior to the radial groove
LATERAL
The superior/proximal attachment for triceps brachii ________ head is posterior distal humerus.
*** inferior to the radial groove
MEDIAL
The lateral head attachment for triceps brachii is ___________ to the radial groove.
SUPERIOR
The medial head attachment for triceps brachii is ___________ to the radial groove.
INFERIOR
Name the inferior/distal attachment for triceps brachii?
*** also for anconeus
OLECRANON PROCESS
(O) Superior/proximal attachment:
LATERAL EPICONDYLE
(I) Inferior/distal attachment:
OLECRANON PROCESS
Actions: ELBOW EXTENSION (assists triceps)
ANCONEUS
The anconeus is a _____________ to the triceps brachii.
SYNERGIST
What is the action which anconeus synergistically assist all head of triceps brachii with?
ELBOW EXTENSION
Name the superior/proximal attachment for anconeus?
LATERAL EPICONDYLE
Name the inferior/distal attachment for anconeus?
OLECRANON PROCESS
The middle, medial humerus is the inferior/distal attachment for which muscle of the arm?
CORACOBRACHIALIS
The supraglenoid tubercle is the superior/proximal attachment for the long head of which muscle of the arm?
BICEPS BRACHII
The posterior ___________ humerus is the superior/proximal attachment of the LATERAL head of triceps brachii, while the posterior ___________ humerus provides the attachment point for the MEDIAL head.
PROXIMAL
+
DISTAL
