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Chapter 11Muscular System: Axial & Appendicular
Key:
P = proximal attachment
D = distal attachment
S = soft tissue
B = bony attachment
S = superior attachment
I = inferior attachment
M = medial
L = lateral
Posterior = color
Anterior = color
11.8c: move forearm at the elbow joint
Name the action, P/D Attachment of the biceps brachii
• Action: flexes forearm
• P: scapula
• D: radial tuberosity
Name the action, S/I/ OR M/L (medial/lateral) attachment
of the teres minor
• Action: laterally rotates arm (agonist); adducts arm
• M: scapula
• L: humerus
Name the action, P/D Attachment of the brachialis
• Action: flexes forearm
• P: humerus
• D: tuberosity & coronoid process of ulna
Name the action, P/D Attachment of the
Brachioradialis
• Action: flexes forearm
• P: humerus
• D: styloid process of radius
What is the flexion, pronation, and supination of the triceps brachii?
• F: brachialis
• P: pronator teres
• S: biceps brachii
Pronator teres action, P/D attachment
, • Action: pronates forearm
• P: Humerus & Ulna
• radius
11.8d: move at the wrist joint, hand & fingers
2 Muscles in hypothenar group (medial aspect of palm)
• Flexor digiti minimi brevis
• Abductor digiti minimi
2 Muscles in thenar group (lateral aspect of palm)
• Flexor pollicis brevis
• Abductor pollicis brevis
Name the action, P/D attachment of the flexor digiti
minimi brevis (hypo)
• Action: flex finger 5
• P: hamate bone
• D: proximal phalanx 5
Name the action, P/D Attachment of the abductor
digiti minimi (hypo group)
• Action: abducts finger 5
• P: pisiform bone
• D: proximal phalanx 5
Name the action, P/D Attachment of the Flexor pollicis brevis (thenar)
• Action: flex thumb
• P: trapezium
• D: proximal phalanx thumb
Name the action, P/D Attachment of the abductor pollicis brevis (thenar)
• Action: abducts thumb
• P: trapezium
• D: proximal phalanx thumb
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