Muscle Movements Flashcards
Eye muscles that adduct vs abduct eye
abduct- lateral rectus
adduct- mediala rectus
Elevate vs depress eye
superior rectus (elevate)
Inferior rectus (depress)
Intorsion vs extorsion of eye (rotation of eye medially/laterally when head it tilted)
superior oblique vs inferior oblique
closes eyelid vs open
orbicularis oculi vs levator palpebrae superioris
puckers lips vs compress cheek
orbicularis oris vs buccinator
raises upper lip (snarling) vs raise/lower upper corners of mouth (smiling/frowning)
levator labii superioris vs. zygomaticus/ depressor anguli oris
Muscles that elevate the mandible + _______= mastication muscles
masseter/ temporalis+ buccinator=mastication
Protracts vs. retract tongue
genioglossus vs. styloglossus
Suprahyoid muscles: All muscles that elevate hyoid bone (which of them also depress mandible)
Stylohyoid, digastric, mylohyoid
digastric and mylohyoid
Infrahyoid bones: depress hyoid bone
omohyoid and sternohyoid
muscle used to inhale and exhale vs forceful exhale
external intercostal (lateral to medial fibers) vs internal intercostal
Sternocleidomastoid characteristics + origin and insertion
most superficial muscle of neck, largest muscle in anterior-lateral aspect of neck
sternum and clavicle—->temporal bone (mastoid process)
Prevertebral muscles functions
bilateral contraction: flexion of vertebral column and/or compress abdomen
unilateral contraction: Lateral flexion of vertebral column (some rotate VC)
Neck flexion(bi), neck lateral flexion(uni), and neck rotation(uni)
scalenes and sternocleidomastoid
trunk flexion(bilateral), trunk lateral flexion (uni), and waist rotation(uni)
external and internal oblique
Rectus abdominis vs transversus abdominis
(ALL BI) both compress abdomen
RA also does trunk flexion and flex pelvis on VC
Does trunk or thigh flexion (bilateral) as well as thigh flexion at hip joint (unilateral)
Iliopsoas
Flexion of thigh at hip joint and abducts thigh at hip joint
tensor faciae latae
All muscles that flex the thigh at hip joint
iliopsoas, tensor fasciae latae, sartorius, rectus femoris
Flexion of thigh at hip joint, lateral rotation of the thigh at hip joint, and flexion of the leg at knee joint
sartorius (yoga pose)
Insertion and origin of quad muscles
Origin of vastus lateralis, vastus medialis, and vastus intermedius is femur
origin of rectus femoris is os coxa
All insert at tibial tuberosity of TIBIA via patellar ligament
Gluteus maximus vs gluteus medius vs gluteus minimus
Maximus- extension of thigh at hip, lateral rotation of the thigh at hip joint (toes outward aka squat form)
medius-abduction of thigh at hip joint, medial rotation of the thigh at hip, walking muscle (important pelvis stabilization (not allowing side-side movement)
minimus- abduction of thigh at hip, medial rotation of thigh at hip
Hip DEEP external rotators: lateral rotation of the thigh at the hip joint
piriformis, superior/inferior gemellus, obturator internus
Hamstrings: extension of thigh at hip joint/ flexion at the knee joint
biceps femoris, semitendinosus, semimembranosus
Muscles that adduct at the hip joint
gracilis, adductor longus, adductor magnus
Muscle that only does plantar flexion (ankle joint) what is it important for?
Soleus (standing/walking)
flexion of leg at knee joint w/ or w/o plantar flexion
Gastrocnemius(jumping) , plantaris, popliteus (no plantar flextion)
Tom, Dick and Harry muscles (Posterior) functions plus names
plantar flexion, inversion, and flexion of hallux or toes
Tibialis posterior, flexor digitorum longus, flexor hallucis longus
Tom, Dick and Harry muscles (Anterior) functions plus names
Dorsiflexion, inversion, and extension of hallux or toes
Tibialis anterior, extensor digitorum longus, extensor hallucis longus
Eversion (inter tarsal joint) of the foot (lateral muscles)
fibularis longus and fibularis brevis
Abduction/protraction of the scapula
anterior chest muscles: pectoralis minor, serratus anterior
Elevate the scapula
levator scapulae
adduction/retraction of the scapula
rhomboid major and minor
Differentiate between the movements of the superior, middle, and inferior fibers of the trapezius
superior- upward rotate scapula
middle-adducts/retract scapula
inferior- depress and upward rotate scapula
A lady between two Major mucles function and names
pectoralis MAJOR, LAtissimus dorsi, teres MAJOR
ALL adduct the arm at the shoulder joint and medially rotate the arm at the shoulder joint
Teres major only one to also extend (extension) the arm at shoulder joint
SITS in the Scapula muscles +functions
Supraspinatus -abduction of arm at the shoulder joint
Infraspinatus- lateral rotation of arm at shoulder
Teres minor- same as above
Subscapularis- medial rotation of arm at shoulder
Deltoid insertion and action of anterior, lateral, and posterior fascicles
insertion- deltoid tuberosity of humerus
anterior- flexion and medial rotation of the arm at shoulder
lateral- abduction of the arm at shoulder
posterior-extension and lateral rotation of arm at shoulder
Extension of the arm at shoulder and extension of forearm at the elbow
triceps brachii
adduction of hand at wrist joint and extension
extensor carpi ulnaris
Forearm flexors will ____ while the extensors will ____
flexion/ extension
Forearm flexors: abduction and adduction of wrist
flexor carpi ulnaris (adduction) (antagonist)
flexor carpi radialis (abduction)
Forearm extensors: abduction and adduction of wrist
extensor carpi ulnaris (adduction)
extensor carpi radialis (abduction)
