Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
21 Cards in this Set
- Front
- Back
|
Temporalis
|
O - lateral surface of the temporal bone
I - coronoid process & ramus of mandible A - closes and retracts jaw |
|
|
Masseter
|
O - Zygomatic arch
I - lateral surface of ramus of mandible A - Closes jaw, assists in protraction, moves jaw side to side |
|
|
Buccinator
|
O - Alveolar processes of Maxilla and mandible
I - Orbicularis oris (lips) A - presses cheeks against teeth ie whistling/blowing. Keeps food between teeth. |
|
|
Orbicularis oris
|
O - Maxilla, mandible, lips and buccinator
I - skin at corner of mouth A - lip closure, shapes lips during speech. |
|
|
Sternocleidomastoid
|
O - anterior and superior manubrium & medial third of clavicle
I - Lateral aspect of "mastoid process" and anterior half of superior nuchal line A - Flexes and laterally rotates cervical spine. Protracts head when acting together . Extends neck when neck already partially extended |
|
|
Scalene muscles (ant, medius, posterior)
|
O - transverse processes of cervical vertebra
I - ant and Medius to 1st rib, posterior to 2nd rib A - Accessory to inspiration, hold your head up. |
|
|
Pectoralis Major
|
O - clavicle (Clavicular head), sternum and costal cartilages of the 2nd - 6th ribs
I - greater tubercle and intertubercular sulcus of the humerus. A - Adduction and medial rotation of the humerus |
|
|
Pectoralis minor
|
O- Anterior 3,4,5 ribs
I - coracoid process of scapula A - Elevates ribs if scapula fixed, protracts (adduction as in pushup or punch) scapula |
|
|
subclavius
|
O - 1st rib
I - clavicle A - stabilises clavicle |
|
|
Intercostals
|
External - O - inferior border of ribs 1 - 11
I - superior border of ribs 2 - 12 A - elevate ribs during inspiration Internal intercostals O - superior border of ribs below I - inferior border of ribs above A - assists in expiration |
|
|
serratus anterior
|
O - outer surface of upper 8 ribs
I - vertebral border and inferior angle of scapula A - protraction and laterally rotates scapula |
|
|
trapezius
|
O - ligamentum nuchae (occiput), C7 - T12
I - lateral clavicle, acromion process A - laterally rotates, elevates and retracts scapula. If scapula is fixed, extends and laterally flexes neck |
|
|
subscapularis
|
O - subscapular fossa
I - lesser tubercle of humerus A - medial rotation of humerous |
|
|
Rhomboid major
|
O - T2 - t5
I - vertebral border of scapula A - retraction - downward rotation of scapula |
|
|
Rhomboids minor
|
o - c7 - t1
I - root of spine at scapula A - retraction - downward rotation of scapula |
|
|
Teres Major
|
O - inferior angle of scapula
I - medial lip of bicipital groove of humerus A - extension, medial rotation & adduction of humerus |
|
|
Teres minor
|
O - Upper axillary border of scapula
I - greater tubercle of humerus A - lateral rotation - extension of humerus |
|
|
Supraspinatus
|
O - supraspinous fossa of scapula
I - greater tubercle of humerus A - stabilise head of humerus to initiate abduction |
|
|
Infraspinatus
|
O - infraspinous fossa of scapula
I - greater tubercle of humerus A - lateral rotation - extension of humerus |
|
|
Latissimus dorsi
|
O - T7 - iliac crest, lowere 3 or 4 ribs, inferior angle of scapula
I - intertubercular sulcus of humerus A - Extends, adducts and medially rotates arm. Costal attachment helps with deep inspiration and forced expiration |
|
|
Levator scapula
|
O - C1 - 4
I - superior vertebral border of scapula A - eleavates scapula and rotates it downward |
