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47 Cards in this Set
- Front
- Back
Origin is: |
The bone which serves as an attachment site for muscle and DOES NOT MOVE during contraction. PROXIMAL (Closer to body) |
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Insertion is: |
The attachment of a muscle's tendon that DOES MOVE when the muscle contracts. DISTAL (Away from the body) |
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Temporalis muscle shape: |
Fan-shaped muscle |
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Origin of Temporalis muscle: |
Temporal Fossa |
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Insertion of Temporalis Muscle: |
Coranoid process of mandible/ramus |
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Action of Temporalis muscle: |
Closes the jaw |
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Shape of Deltoid Muscle: |
Flesh Triangular muscle forming shoulder muscle mass. |
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Origin of Deltoid Muscle: |
Lateral 1/3 of clavicle; Acromion and spine of scapula |
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Insertion of Deltoid muscle: |
Deltoid tuberosity of humerus |
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Action of Deltoid Muscle: |
Prime mover of arm abduction |
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Shape of Biceps brachii: |
Most familar muscle of anterior humerus, two headed muscle. |
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Origin of Biceps brachii: |
Supraglenoid tubercle of scapula; Tip of coracoid process of scapula |
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Insertion of Biceps Brachii |
Radial tuberosity |
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Action of Biceps Brachii: |
Flexion (Powerful) and supination of forearms |
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Shape of Triceps brachii |
Large fleshy muscle of posterior humerus; three headed origin |
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Origin of Triceps brachii: |
Long head, lateral head, medial head, Infraglenoid tubercle of scapula, superior 1/2 of humerus, inferior 2/3 of humerus. |
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Insertion of Triceps brachii: |
Olecranon of ulna |
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Action of Triceps brachii: |
Powerful forearm extensor |
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Shape of Pectoralis major: |
Large fan-shaped muscle covering upper portion of chest |
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Origin of Pectoralis major: |
Medial 1/2 of clavicle Sternum Rips 1-7 External Oblique muscle |
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Insertion of Pectoralis major: |
Lateral lip of intertubercle grove of humerus |
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Action of Pectoralis major: |
Arm flexion; Arm adduction; Medially rotates arm |
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Shape of Pectoralis Minor: |
Flat, thin muscle deep to the pectoralis major |
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Origin of Pectoralis Minor: |
Anterior surface of ribs 3-5, near their costal cartilages |
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Insertion of Pectoralis Minor: |
Coracoid process of scapula |
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Action of Pectoralis Minor: |
Draws scapula toward and inferior |
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Shape of Rectus Femoris (Part of quads) |
Counteracts the hamstrings to stabilize the knee |
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Origin of Rectus femoirs (part of quads) |
Anterior, Inferior iliac spine; Acetabulum |
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Insertion of Rectus Femoris (part of quads) |
Tibial tuberosity and patella |
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Action of Rectus Femoris (Part of quads) |
Extends leg and flexes knee |
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Shape of Biceps femoris (Part of hamstring) |
Most lateral muscle of group; arises from two heads. |
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Origin of Biceps Femoris (Part of hamstrings) |
Ischial tuberosity (Long head) Linea asperea Distal Femur (short head) |
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Insertion of Biceps Femoris (Part of hamstrings) |
Lateral surface of fibula head; Lateral condyle of fibula |
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Action of Biceps femoris (part of hamstrings) |
Extends thigh; Laterally rotates leg; Flexes leg |
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Shape of Gastrocnemius (Calf muscle) |
"Calf Muscle" Two prominent bellies |
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Origin of Gastrocnemius (Calf muscle) |
By two heads from medial and lateral condyles of femur |
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Insertion of Gastrocnemius (Calf muscle) |
Calcaneus via calcaneal tendon |
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Action of Gastrocnemius (Calf muscle) |
Plantar flexes foot when leg extended |
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Temporalis Muscle |
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Deltoid Muscle |
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Biceps Brachii |
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Triceps Brachii |
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Pectoralis Major |
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Pectoralis Minor |
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Quadriceps Formoris |
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Hamstrings |
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Gastrocnemius |