Muscles

Report
MUSCLES
ATTACHMENTS AND MOVEMENTS
MUSCLES OF SHOULDER GIRDLE
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Trapezius
Rhomboids
Serratus Anterior
Levator Scapulae
Pectoralis Minor
TRAPEZIUS
• Proximal Attachments: Occipital Bone, Ligamentus
Nuchae, Thoracic Vertebrae
• Distal Attachments: Spine of Scapula, Distal
posterior 1/3 of the scapula.
• Movements: Elevation, Retraction, Depression,
Upward Rotation
RHOMBOIDS
• Proximal Attachment- c7-t5 of vertebrae
• Distal Attachment- Vertebral (Medial Border of the
scapula.
• Movements: elevation, retraction, downward
rotation.
SERRATUS ANTERIOR
• Proximal Attachment- the top of the back surface
of the top nine ribs.
• Distal Attachment- Vertebral Border of the scapula
on the underside
• Movements- upward rotation, protraction
LEVATOR SCAPULAE
• Proximal Attachment- Transverse Process of the top
4 cervical vertebrae.
• Distal Attachment- Superior angle of the scapula
• Movements- Elevation of scapula, lateral flexion of
the neck
PECTORALIS MINOR
• Proximal Attachment- 3-5th rib
• Distal Attachment- corocoid process
• Movements depression, downward rotation,
protraction
MUSCLES OF THE SHOULDER JOINT
(GLENOHUMERAL JOINT)
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Anterior Deltoid
Medial Deltoid
Posterior Deltoid
Pectoralis Major
Latissimus Dorsi
Teres Major
Rotator Cuff Muscles
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InfraSpinatus
SupraSpinatus
Subscapularis
Teres Minor
ANTERIOR DELTOID
• Proximal Attachment-distal anterior 1/3 of the
clavicle
• Distal Attachment- deltoid tuberosity (humerus)
• Movements: flexion, inward rotation, minor in
horizontal adduction
POSTERIOR DELTOID
• Proximal Attachment- spine of scapula
• Distal Attachment- deltoid tuberosity
• Movements: outward rotation, extension, horizontal
abduction
MEDIAL DELTOID
• Proximal Attachment- acromion process
• Distal Attachment- deltoid tuberosity
• Movements: abduction
PECTORALIS MAJOR
• Proximal Attachments- sternum, clavicle
• Distal Attachment- bicepital groove (humerus)
• Movements: horizontal adduction, inward rotation,
flexion.
LATISSIMUS DORSI
• Proximal Attachment- crest of ilium via lumbosacral
fascia, lower 6 thoracic vertebrae, all of lumbar
vertebrae
• Distal Attachment- bicepital groove (humerus)
• Movements: extension, inward rotation, adduction
TERES MAJOR
• Proximal Attachment- inferior angle of the scapula
• Distal Attachment- bicepital groove (humerus)
• Movements: extension, inward rotation, adduction
INFRASPINATUS (ROT.CUF.)
• Proximal Attachment- infraspinus fossa
• Distal Attachment- greater tubericle
• Movements: outward rotation, horizontal abduction
SUPRASPINATUS (ROT.CUF.)
• Proximal Attachment- supraspinus fossa
• Distal Attachment- top of the greater tubericle
• Movements: abduction
SUBSCAPULARIS (ROT.CUF.)
• Proximal Attachment- subscapular fossa
• Distal Attachment- lesser tubericle
• Movements: medial rotation, horizontal adduction
TERES MINOR (ROT.CUF.)
• Proximal Attachment- axillary (lateral) border of the
scapula
• Distal Attachment- greater tubericle
• Movements: outward rotation, horizontal abduction
MUSCLES OF THE ELBOW
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Triceps
Biceps
Brachialis
Brachioradialis
TRICEPS
• Proximal Attachment: (long head) underneath
glenoid fossa, (lateral head) back of the humerus
about an inch below the head of the humerus,
back surface of the humerus.
• Distal Attachment: ulecranon process
• Movements: Elbow extension
BICEPS
• Proximal Attachment: On top of the glenoid fossa,
corocoid process
• Distal Attachment: radial tuberosity
• Movements: Elbow flexion, forearm supination
BRACHIALIS
• Proximal Attachment: distal anterior 2/3 of the
humerus
• Distal Attachment: coronoid process (ulna)
• Movements: Elbow flexion,
BRACHIORADIALIS
• Proximal Attachment: supracondylar ridge of
humerus
• Distal Attachment: styloid process of the radius
• Movements: elbow flexion, forearm pronation
WRIST FLEXORS
• Proximal Attachment: Medial Epicondyle of the
Humerus
• Distal Attachment: Carpals, and Metacarpals (Palm
side)
• Movements: Wrist flexion
WRIST EXTENSORS
• Proximal Attachment: lateral epicondyle of the
humerus
• Distal Attachment: dorsal surface of the carpals
and metacarpals.
• Movements: wrist extension, and wrist
hyperextension
MUSCLES OF THE HIP
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Sartorius
Rectus Femoris
Psoas
Illiacus
Tensor Fascia Latae
Gluteus Maximus
Gluteus Medius
Gluteus Minimus
Hip Adductor Muscles
SARTORIUS
• Proximal Attachment: Anterior Superior Iliac Spine
• Distal Attachment: Tibial Tuberosity
• Movements: Hip Flexion, Knee Flexion, Outward
rotation, Abduction
RECTUS FEMORIS
• Proximal Attachment: Anterior Inferior Iliac Spine
• Distal Attachment: Tibial Tuberosity
• Movements: Hip Flexion, Knee Extension
PSOAS
• Proximal Attachment: Anterior portion of all Lumbar
Vertebrae
• Distal Attachment: Lesser Trochanter of the Femur
• Movements: Hip Flexion, Outward Rotation
ILIACUS
• Proximal Attachment: Inside of the Ilium
• Distal Attachment: Lesser trochanter of the Femur
• Movements: Hip flexion, outward rotation,
adduction
TENSOR FASCIA LATAE
• Proximal Attachment: Behind the Anterior Superior
Iliac Spine
• Distal Attachment: Lateral Tibia via the IT band
• Movements: Stabilizes the IT Tract, Assists in Hip
flexion and inward rotation.
GLUTEUS MAXIMUS
• Proximal Attachment: Crest of the Ilium, Lumbosacral fascia, Sacrum
• Distal Attachment: Greater Trochanter of the Femur,
IT Tract
• Movements: Hip Extension, Outward Rotation
GLUTEUS MEDIUS
• Proximal Attachment: Crest of Ilium, Outside Fossa
of the Ilium.
• Distal Attachment: Anterior Portion of the Greater
Trochanter
• Movements: Abduction, Inward Rotation
GLUTEUS MINIMUS
• Proximal Attachment: Same as Medius
• Distal Attachment: Same as Medius
• Movements: Abduction, inward rotation.
HIP ADDUCTORS
• Proximal Attachment: Inferior Ramus
• Distal Attachment: Lineaspera of the Femur
• Movements: Adduction, Outward Rotation.
MUSCLES OF THE KNEE
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Vastus Lateralis
Vastus Medialis
Vastus Intermedius
Semitendinosis
Semimembranosis
Biceps Femoris
Gastrocnemius
Soleus
Anterior Tibialis
VASTUS LATERALIS
• Proximal Attachment: linea aspera
• Distal Attachment: tibial tuberosity
• Movements: knee extension
VASTUS MEDIALIS
• Proximal Attachment: linea aspera
• Distal Attachment: tibial tuberosity
• Movements: knee extension
VASTUS INTERMEDIUS
• Proximal Attachment: upper anterior 2/3 of femur
• Distal Attachment: tibial tuberosity
• Movements: knee extension
SEMIMEMBRANOSIS
• Proximal Attachment: Ishial Tuberosity
• Distal Attachment: Medial portion of tibial tuberosity
(same as the sartorius)
• Movements: Knee Flexion, hip extension, medial
rotation
SEMITENDINOSIS
• Proximal Attachment: Ishial Tuberosity
• Distal Attachment: Medial tibia tuberosity
• Movements: knee flexion, hip extension, medial
rotation.
BICEPS FEMORIS
• Proximal Attachment: Long Head- Ishial Tuberosity,
Short Head- Linea aspera
• Distal Attachment: Tibia, and lateral fibula
• Movements: knee flexion, hip extension,
GASTROCNEMIUS
• Proximal Attachment: back of femur (condyles of
the knee)
• Distal Attachment: Calcaneus
• Movements: Plantarflexion, assists in knee flexion
SOLEUS
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Proximal Attachment: Posterior tibia and fibula
Distal Attachment: calcaneus
(underneath the gastrocnemius
Movements: plantar flexion
ANTERIOR TIBIALIS
• Proximal Attachment: lateral tibia
• Distal Attachment: top of the 1st metatarsal
• Movements: dorsiflexion, inversion
SPINAL MUSCLES
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Erector Spinae
Abdominus Rectus
Internal Obliques
External Obliques
ERECTOR SPINAE
• Proximal Attachment: spinus and vertebral
processes of the vertebrae
• Distal Attachment: “ “, lumbosacral fascia
• Movements: extension and hyperextension of the
spine.
ABDOMINUS RECTUS
• Proximal Attachment: pelvis
• Distal Attachment: costal cartilage of 5-7 ribs
• Movements: flexion, lateral flexion
INTERNAL OBLIQUES
• Proximal Attachment: linea alba, lower 4 ribs
• Distal Attachment: crest of the ilium, lumbosacral
fascia, ingual ligament
• Movements: rotation, flexion, lateral flexion
EXTERNAL OBLIQUES
• Proximal Attachment: bottom 8 ribs,
• Distal Attachment: linea alba, and crest of the ilium
• Movements: flexion, lateral flexion, rotation

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