Human Muscle Identification: Origins and Functions Flashcards
Latissimus dorsi
O -
Sacral, lumbar, and lower thoracic vertebrae
Pelvis
Ribs
F -
Extension of shoulder
Adduction and medial rotation of arm
Depression and retraction of shoulder
Trapezius
O -
Occipital bone
C7 and all thoracic vertebrae
F -
Rotation and retraction of scapula
Superior portion elevates scapula
Inferior portion depresses scapula
Deltoid
O -
Scapula
Clavicle
F -
Lateral portion abducts arm
Anterior portion flexes shoulder
Posterior portion extends shoulder
Biceps brachii
O -
Scapula
F -
Flexion of the elbow
Supination of the forearm and hand
Triceps brachii
O -
Scapula
Humerus
F -
Extension of elbow
Brachioradialis
O -
Humerus
F -
Flexion of elbow
Pectoralis major
O -
Clavicle
Sternum
Ribs
F -
Flexion of shoulder
Adduction and medial rotation of the arm
Serratus anterior
O -
Ribs
F -
Protraction and rotation of scapula
Rectus abdominis
O -
Pelvis
F -
Compression of abdomen
Flexion of vertebral column
External oblique
O -
Ribs
F -
Compression of abdomen
Flexion and rotation of vertebral column
Gluteus maximus
O -
Pelvis
F -
Abduction and medial rotation of thigh
Rectus femoris
O -
Pelvis
F -
Extension of knee
Flexion of hip
Vastus lateralis
O -
Femur
F -
Extension of knee
Vastus medialis
O -
Femur
F -
Extension of knee
Biceps femoris
O -
Pelvis
Femur
F -
Flexion of knee
Lateral rotation of leg
Extension of hip
Semitendinosus
O -
Pelvis
F -
Flexion of knee
Medial rotation of leg
Extension of hip
Semimembranosus
O -
Pelvis
F -
Flexion of knee
Medial rotation of leg
Extension of hip
Gastrocnemius
O -
Femur
F -
Plantar flexion of foot
Flexion of knee
Frontalis
O -
Occipital bone
F -
Elevation of eyebrows
Occipitalis
O -
Occipital bone
F -
Elevation of eyebrows
Masseter
O -
Zygomatic bone
F -
Elevation and protraction of mandible
Sternocleidomastoid
O -
Sternum
Clavicle
F -
One-sided contraction: Rotation of head
Simultaneous contraction: Flexion of the head
Temporalis
O -
Temporal bone
F -
Elevation and retraction of the mandible
Orbicularis oculi
O -
Maxilla
Frontal bone
F -
Closes eye
Zygomaticus
O -
Zygomatic bone
F -
Elevation of the corner of the mouth
Buccinator
O -
Maxilla
Mandible
F -
Compression of cheeks
Orbicularis oris
O -
Muscles near the mouth
F -
Closes and protrudes lips
Platysma
O -
Fascia in upper chest
F -
Depression of lower lip and angle of the mouth
Digastric
O -
Mandible
Temporal bone
F -
Opening of mouth
Depression of mandible
Sternothyroid
O -
Manubrium of sternum
F -
Depression of larynx and hyoid bone
Sternohyoid
O -
Manubrium
Clavicle
F -
Depression of larynx and hyoid bone if mandible is fixed
Mylohyoid
O -
Mandible
F -
Elevation of hyoid bone
Elevation of the floor of the mouth
Flexor digitorum superficialis
O -
Humerus
Ulna
Radius
F -
Flexion of wrist and joints of fingers
Flexor carpi ulnaris
O -
Humerus
Ulna
F -
Flexion of wrist
Adduction of hand
Flexor carpi radialis
O -
Humerus
F -
Flexion of wrist
Abduction of hand
Extensor carpi ulnaris
O -
Humerus
Ulna
F -
Extension of wrist
Adduction of hand
Extensor digitorum
O -
Humerus
F -
Extension of joints of the fingers
Extensor carpi radialis longus
O -
Humerus
F -
Extension of wrist
Abduction of hand
Fibularis longus
O -
Tibia
Fibula
F -
Plantar flexion and eversion of the foot
Supports arch
Tibialis anterior
O -
Tibia
F -
Dorsiflexion and inversion of foot
Extensor digitorum longus
O -
Tibia
Fibula
F -
Dorsiflexion of foot
Extension of toes
Soleus
O -
Fibula
Tibia
F -
Plantar flexion of foot
Gracilis
O -
Pelvis
F -
Adduction of thigh
Flexion of knee
Gluteus medius
O -
Pelvis
F -
Abduction and medial rotation of thigh
Tensor fascia latae
O -
Pelvis
F -
Abduction of thigh
Flexion of hip
Medial rotation of thigh
Sartorius
O -
Pelvis
F -
Flexion of knee
Flexion of hip
Abduction and lateral rotation of thigh
Medial rotation of leg
Adductor longus
O -
Pelvis
F -
Adduction of thigh
Flexion of hip