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37 terms

Anatomy muscle actions USA

Here are some of the muscle actions taken out of the anatomy note-pack questions
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Rotation of the head to the right?
Left trapezius, left, sternocleidomastoid, right
splenius capitis, right longissimus capitis, left semispinalis capitis, right rectus capitis posterior major, and right obliquus capitis inferior
Side bending of the head?
Sternocleidomastoid, upper, trapezius, splenius capitis, longissimus capitis, and obliquus capitis superior.
Side bending of the neck?
Splenius cervicis, iliocostalis cervicis, longissimus cervicis, intertransversarius, scalenes, lev. Scapulae, and trapezius
Extension of the lumbar spine?
Iliostalis lumborum, multifidus, interspinalis, quadratus
lumborum
Extension of the thoracic spine?
Iliocostalis thoracis, longissimus thoracis, semispinalis
thoracis, multifidus, spinalis, and interspinalis.
Side bending of the lumbar spine?
Iliostalis lumborum, multifidus, intertransversarius,
and quadratus lumborum, psoas major.
Scapular retraction.
Trapezius and rhomboids.
Scapular elevation.
Upper trapezius, levator scapulae, and rhomboids.
Scapular protraction.
Serratus anterior.
Scapular upward rotation.
Upper and lower trapezius, and serratus anterior.
Scapular downward rotation.
pectoralis minor, rhomboids, and levator scapulae.
Glenohumeral flexion:
Anterior deltoid, coracobrachialis, biceps, and pectoralis
major/latissimus dorsi (when glenohumeral joint is in extension)
Glenohumeral abduction.
Deltoid, supraspinatus, biceps (when the arm is externally
rotated).
Glenohumeral external rotation.
Infraspinatus, supraspinatus, teres minor, and
posterior deltoid.
Glenohumeral internal rotation.
Pectoralis major, latissimus dorsi, anterior deltoid,
teres major, and subscapularis.
Glenohumeral adduction and internal rotation.
Pectoralis major, latissimus dorsi, and teres major.
Glenohumeral joint extension and external rotation.
Posterior deltoid, infraspinatus (from flexed position)
Glenohumeral joint flexion and internal rotation.
Anterior Deltoid, and with the arm extended the pectoralis major, teres major, and subscapularis.
Which of the anteromedial forearm muscles flex the elbow?
Flexor carpi radialis, flexor carpi ulnaris, pronator teres, and flexor digitorum superficialis.
Gluteal Muscles Abduction and internal rotation.
gluteus medius and minimus
Gluteal Muscles Extension and external rotation.
gluteus maximus
Gluteal Muscles External rotation.
gluteus maximus, piriformis, quadratus femoris, superior and
inferior gemelli, internal and external obturators
Anterior compartment Flex the hip.
iliopsoas, sartorius, rectus femoris, pectineus
Anterior compartment Extend the knee.
Vastus lateralis, vastus medialis, rectus femoris, vastus intermedius
Anterior compartment Externally rotate the hip.
Sartorius
Which medial compartment muscles both medially rotate and adduct the hip?
Gracilis, adductor logus, adductor brevis, adductor magnus
Posterior compartment Flex the knee.
Semitendinous, semimembranous, long and short heads of the biceps femoris
Posterior compartment Internally rotate the tibia.
Semitendinous, semimembranous
Posterior compartment Extend the hip.
Semitendinous, semimembranous, long head of the biceps femoris
Posterior compartment Externally rotate the tibia.
Long and short heads of the biceps femoris
Posterior compartment Ankle plantarflexion
Gastrocnemius, soleus, plantaris, posterior tibialis, flexor
digitorum longus, flexor hallicis longus
posterior compartment Ankle dorsiflexion.
None
posterior compartment Foot inversion.
Gastrocnemius, soleus, plantaris, posterior tibialis
posterior compartment Knee flexion.
Gastrocnemius
posterior compartment Foot eversion.
None
deep neck Flexion of head
longus capitis and rectus capitis anterior;
deep neck flexion of neck
longus colli group