Lab 7 Flashcards

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1
Q

Levator Scapulae

Origin, Insertion, Innervation, Function, Antagonist, and Synergist

A
Origin: Transverse process of C1-4.
Insertion: Medial edge of scapula.
Innervation: Dorsal scapular nerve (C4,5).
Function: Elevates scapula.
Antagonist:
Synergist:
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2
Q

Rhomboideus Major

Origin, Insertion, Innervation, Function, Antagonist, and Synergist

A

Origin: Spinous processes of T2-5.
Insertion: Medial edge of scapula.
Innervation: Dorsal scapular nerve (C4,5).
Function: Retracts, elevates, adducts scapula.
Antagonist:
Synergist:

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3
Q

Rhomboideus Minor

Origin, Insertion, Innervation, Function, Antagonist, and Synergist

A

Origin: Spinous process of C7-TI.
Insertion: Medial edge of scapula.
Innervation: Dorsal scapular nerve (C4,5).
Function: Retracts, elevates, and adducts scapula.
Antagonist:
Synergist:

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4
Q

Serratus Anterior

Origin, Insertion, Innervation, Function, Antagonist, and Synergist

A

Origin: Ribs 1-9.
Insertion: Medial border and inferior angle of scapula.
Innervation: Long thoracic nerve (C5,6).
Function: Protracts and stabilizes scapula.
Antagonist:
Synergist:

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5
Q

Deltoideus

Origin, Insertion, Innervation, Function, Antagonist, and Synergist

A

Origin: Lateral third of clavicle, acromion and spine of scapula.
Insertion: Deltoid tuberosity (lateral side) of humerus.
Innervation: Axillary nerve (C4,5,6).
Function: Elevates humerus.
Antagonist:
Synergist:

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6
Q

Teres Major

Origin, Insertion, Innervation, Function, Antagonist, and Synergist

A

Origin: Inferior apex of scapula.
Insertion: Anterior face of humerus (inter tubercular groove).
Innervation: Lower subscapular nerve (C5,6).
Function: Adducts, extends and medially rotates humerus.
Antagonist:
Synergist:

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7
Q

Teres Minor

Origin, Insertion, Innervation, Function, Antagonist, and Synergist

A
Origin: Lateral border of scapula.
Insertion: Greater tubercle of humerus.
Innervation: Axillary nerve (CS,6).
Function: Laterally rotates humerus, stabilizes shoulder joint.
Antagonist:
Synergist:
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8
Q

Subscapularis

Origin, Insertion, Innervation, Function, Antagonist, and Synergist

A

Origin: Subscapular fossa of scapula.
Insertion: Lesser tubercle of humerus.
Innervation: Upper and lower subscapular nerves (C5,6).
Function: Medially rotates humerus, stabilizes shoulder joint.
Antagonist:
Synergist:

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9
Q

Brachioradialis

Origin, Insertion, Innervation, Function, Antagonist, and Synergist

A
Origin: 
Insertion:
Innervation:
Function:
Antagonist:
Synergist:
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10
Q

Supraspinatus

Origin, Insertion, Innervation, Function, Antagonist, and Synergist

A
Origin: Supraspinous fossa of scapula.
Insertion: Greater tubercle of humerus.
Innervation: Suprascapular nerve (C5,6).
Function: Abducts humerus, stabilizes shoulder joint.
Antagonist:
Synergist:
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11
Q

Infraspinatus

Origin, Insertion, Innervation, Function, Antagonist, and Synergist

A
Origin: Infraspinous fossa of scapula.
Insertion: Greater tubercle of humerus.
Innervation: Suprascapular nerve (C5,6).
Function: Laterally rotates humerus, stabilizes shoulder joint. 
Antagonist:
Synergist:
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12
Q
Pectoralis Major (Clavicular Head)
Origin, Insertion, Innervation, Function, Antagonist, and Synergist
A

Origin: Medial half of clavicle.
Insertion:Lateral side of humerus (intertubercular groove).
Innervation: Medial and lateral pectoral nerves (C5,6).
Function: Adducts humerus.
Antagonist:
Synergist:

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13
Q

Pectoralis Minor

Origin, Insertion, Innervation, Function, Antagonist, and Synergist

A
Origin: Ribs (3-5).
Insertion: Coracoid process of scapula.
Innervation: Medial pectoral nerve (C6,7); carries both cranial ventral and caudal ventral fibers.
Function: Depresses scapula.
Antagonist:
Synergist:
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14
Q

Biceps Brachii

Origin, Insertion, Innervation, Function, Antagonist, and Synergist

A

Origin: Long head, coracoid process of scapula: short head, anterior, proximal surface of humerus.
Insertion: Radial tuberosity of anterior face of radius.
Innervation: Musculocutaneous nerve (C5,6).
Function: Flexes humerus at shoulder; flexes and supinates forearm.
Antagonist:
Synergist:

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15
Q

Brachialis

Origin, Insertion, Innervation, Function, Antagonist, and Synergist

A

Origin: Anterior surface of humerus.
Insertion: Anterior face of proximal surface of ulna.
Innervation: Musculocutaneous nerve (C5,6).
Function: Flexes forearm.
Antagonist:
Synergist:

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16
Q

Triceps-Long Head

Origin, Insertion, Innervation, Function, Antagonist, and Synergist

A
Origin: Infraglenoid tubercle of scapula.
Insertion: Olecranon process of ulna.
Innervation: Axillary nerve (C4,5,6).
Function: Extends and adducts forearm. 
Antagonist:
Synergist:
17
Q

Triceps-Lateral Head

Origin, Insertion, Innervation, Function, Antagonist, and Synergist

A
Origin: Posterior body and lateral surface of humerus.
Insertion: Olecranon process of ulna.
Innervation: Radial nerve (C7,8).
Function: Extends forearm.
Antagonist:
Synergist:
18
Q

Triceps-Medial Head

Origin, Insertion, Innervation, Function, Antagonist, and Synergist

A
Origin: Posterior Surface of Humerus.
Insertion: Olecranon process of Ulna.
Innervation: Radial Nerve (C7,8).
Function: Extends forearm.
Antagonist:
Synergist:
19
Q

Latissimus Dorsi

Origin, Insertion, Innervation, Function, Antagonist, and Synergist

A

Origin: Spines of T7-12, thoracolumbar facia.
Insertion: Bicipital groove (proximal end) of humerus.
Innervation: Thoracodorsal nerve (C7,8). A bit of C6.
Function: Retracts humerus, rotates scapula downward via attachement to humerus.
Antagonist:
Synergist:

20
Q
Pectoralis Major (Sternal Head)
Origin, Insertion, Innervation, Function, Antagonist, and Synergist
A

Origin: Sternum; costal cartilages 1-6.
Insertion: Upper, lateral surface of humerus.
Innervation: Medial and lateral Pectoral nerves (C7,8,T1).
Function: Flexes, adducts and medially rotates humerus.
Antagonist:
Synergist:

21
Q

Trapezius

Origin, Insertion, Innervation, Function, Antagonist, and Synergist

A

Origin: Superior, Occipital bone; middle, ligament niche; inferior, spine of vertebrae.
Insertion: Superior, lateral third of clavicle and part of acromion process of scapula; middle, acromion and spine of scapula, inferior, spine of scapula.
Innervation: Motor, cranial nerve XI
Function (Superior Portion): adducts and elevates scapula.
Function (Middle Portion): Retracts scapula.
Function (Inferior Portion): Depresses Scapula.
Antagonist:
Synergist: