Beg. Muscle Sets Flashcards
Scalenes
O - C2 - C7
I - 1st 2 Ribs
A - BiLateral - Flexion of the neck
raises 1st 2 ribs during forced inspiration.
Unilateral - Lateral Flexion of the cervical spine
Gastrocnemius
O- medial and lateral epicondyles of the femur
I- Calcaneus via the Achilles’ tendon
A- Plantarflexion or Flexion of the knee, it cannot do both at the same time
Supraspinatus
O- supraspinous fossa on the scapula
I- greater tubercle of the humerus
A- abduction of the first 5°
Tensor Facis Latae (TFL)
O - Iliac Crest just posterior to the anterior superior Iliac Spine
I - Tibia condyle via the iliotibial band
A - abduction
stabilizes the knee
flexion of hip
medial rotation of the femur
Adductor Magnus
O - pubic bone and ishial tuberosity I - Linea Aspera and adductor tuberosity A - adduction of the femur forceful extension of the hip lateral rotation of the hip and femur
Semi tendinosis and semi menbranosus
O - Ishial tuberosity I - tibia A - Flexion of knee extension of the hip medial rotation of the hip and femur
Rhomboids
O - C7 - T5 I - Medial/Vertebral border of the Scapula A - Retraction Downward rotation Slight elevation
Erector Spinae or Paraspinals or Erectors
Superior attachment - Occiput
inferior attachment - sacrum /ThoracoLumbar Aponeurosis
A - bilaterally - extension of the spine
unilaterally - lateral flexion
Pectoralis major
O - sternum and clavicle I - lateral lip of the bicipital groove of the humerus A - adduction Horizontal adduction Medial rotation of the humerus Extension of the flexed shoulder Flexion of the extended shoulder
Splenuis Capitus
O - about C3-T3
I - Mastoid Process
A - bilaterally - extension of the neck
Unilaterally - rotate the head to the same side
lateral flexion of the cervical spine
Thin bandage like muscle covering the neck muscles except the trapezius
Pectoralis Minor
Superior Attachment - Coracoid Process (Part of Scapula) Inferior Attachment - Ribs 3-5 A - Protraction Depression Elevate the ribs during breathing
Teres Minor
O - Lateral Border of the Scapula
I - Greater Tubercle of the Humerus
A - Lateral rotation & Extension
Soleus
O - Soleal Line of the Tibia
I - Calcaneus via the Achilles Tendon
A - Plantarflexion
(Strongest plantarflexor and 2nd layer deep)
Peroneus Longus
O - Head of Fibula (smaller leg bone)
Lateral shaft of fibula
I - Base of the first metatarsal
A - Eversion of the foot & Plantarflexion
Serratus Anterior
O - First 8 ribs posterior lateral side
I - Medial border of the scapula (anterior side)
A - Protraction of the scapula
(Strongest protracting muscle)
Ligaments
connect bone to bone
Sciatic Nerve
Largest nerve in the body
Peronis Muscles
Peronis Longus
Peronis Brevis
Peronis Terius (3rd)
(been renamed to the fibularis muscles)
Upper Trapezius
O - Occiput - C7
I - Lateral 1/3 of ClavicleAcromium
A - Elevation & Upward Rotation
Plantaris
3rd muscle that makes up the Achilles Tendon
Middle Trapezius
O - T1 - T5
I - Spine of the Scapula
A - Retraction
Lower Trapezius
O - T6 - T12
I - Root of the Spine of the Scapula
A - Depression & Upward Rotation
Teres Major
O - Lateral Border of the Scapula I - Medial Lip of the Bicepital groove of the Humerus A - Adduction Extension of the shoulder Medial rotation of the humerus
Latissimus Dorsi
O - ThoracoLumbar Aponeurosis via the Sacrum
I - Medial Lip of the Bicepital groove of the Humerus
A - Adduction
Extension of the shoulder
Medial rotation of the humerus
Levator Scapula
O - C1 - C4 Traverse Processes
I - superior angle of the scapula
A - Elevation & Downward Rotation
Gluteus Maximus
O - Lateral Sacrum & Iliac Crest I - Iliotibial Band & Gluteal Tuberosity A - Forceful Extension of the hip Lateral Rotation of the femur (Strongest muscle of the body/top layer)
Infraspinatus
O - Infraspinous Fossa
I - Greater Tubercle of the Humerus
A - Lateral Rotation & Extension
Tendons
Connects muscle to bone
Subscapularis
O - Subscapular fossa
I - Lesser Tubercle of the Humerus
A - Medial Rotation
Gluteus Medius & Minimus
O - Posterior Ilium I - Greater Trochanter A - Abduction of the femur Extension of the HipMedial Rotation of the hip (2nd layer deep)
Brachial Plexus
bundle of nerves in the neck that go down the arm
SternoCleidoMastiod (SCM)
O - Sternum & Clavicle
I - Mastoid Process (bump behind the ear)
A - Bilaterally - Flexion of the neck (tilt head fwd)
Unilaterally - Rotate head to opposite side
Lateral flexion of the cervical spine
Biceps Femoris
O - Long Head - Ishial Tuberosity (sits bone) Short Head - Linea Aspera I - Fibula (smaller leg bone) A - Flexion of the knee extension of the hip lateral rotation of the femur
Piriformis
O - Anterior Sacrum
I - Greater Trochanter
A - Lateral Rotation of the femur
Largest and strongest deep lateral rotators of the femur
6 deep lateral rotators of the hip
Superior to Inferior Piriformis Gemellus Superior Obturator Internus Gemellus Inferior Obturator Externus Quadratus Femoris
Adductor Group
Adductor Magnus Adductor Brevis Adductor Longus Pectineus Gracilis
SITS Muscles
Supraspinatus Infraspinatus Teres Minor Subscapularus A - Stabilize the head of the humerus in the glenoid fossa (Rotator cuff muscles)
Masseter
O – Zygomatic Arch
I – Ramus(flat) of the mandible
A – Mastication (closes the jaw, chewing)
Protraction of the jaw
Pterygoids
deep to the Masseter Muscle
Temporalis
O – Temporal Fossa
I – Coranoid Process of the Mandible
A – Mastication (closes the jaw, chewing)
Retraction of the jaw
Frontalis
O – Epicranial Aponeurosis, aka, Galea Aponeurosis
I – Eyebrows
A – Raises the Eyebrows
Deltoid
I - Deltoid Tuberosity
O - Anterior – Clavical
A - Flexion & Horizontal ADduction & Medial Rotation
O - Middle – Acromium
A - Abduction 5-90 degrees
O - Posterior –Spine of Scapula
A - Extension& Horizontal ABduction & Lateral Rotation
Biceps Brachii (Arm)
O – Long: SupraGleinod Tubercle of the Scapula via Bicipital Groove Short: Coracoid Process of the Scapula I – Tuberosity of Radius A – Flexion of the Elbow Flexion of the Shoulder Supination
Brachioradialis
O- Supracondylar ridge of the humerus
I- Styloid Process of the radius (bone above the thumb)
A- Flexion of the elbow with hand in Neutral position (drinking position)
Forearm Extensors
O - Lateral Epicondyle of the humerus
I - Hand & Fingers on the back of the hand
A - Extension of the wrist and fingers
Forearm Flexors
O - Medial Epicondyle of the humerus
I - Hand & Fingers on the palm of the hand
A - Flexion of the wrist and fingers
Triceps Brachii
O – Long: InfraGleinod Tubercle of the Scapula
Medial: Below the Spinal Grooves of the Humorous
Lateral: Above the Spinal Grooves
I – Olecranon Process of Ulna
A – Extension of the Elbow
Long Head- Extension of the Shoulder
Rectus Abdominus
Superior Attachment - Xiphoid Process (bottom part of Sternum)
Inferior Attachment - Pubic Bone
A - Flexion of the spine (brings shoulders off groun or hips off ground slight movement)
Top layer
External Oblique
O - Lower Ribs and ThoracoLumbar Aponeurosis
I -Linea Alba via the external oblique aponeurosis
A - Rotation of the trunk to the opposite Side
Lateral Flexion
2nd Layer
Internal Oblique
O - ThoracoLumbar Aponeurosis and Iliac Crest
I -Linea Alba via the internal oblique aponeurosis
A - Rotation of the trunk to the same Side
Lateral Flexion
3rd Layer
Transverse Abdominus
O - ThoracoLumbar Aponeurosis
I -Linea Alba via the transverse aponeurosis
A - Expels content out of respective openings (all abdominal muscles assist with this.
Rectus Femoris
O - Anterior Inferior Illiac Spine (AIIS)
I - Tibia Condyle via the patella tendon/ligament
A - Extension of the Knee
Flexion of the Hip
Vastus Lateralis/Vastus Medialis
O - Linea Aspera
I - Tibia Condyle via the patella tendon/ligament
A - Extension of the Knee
Vastus Intermedius
O - Anterior Shaft of the Femur
I - Tibia Condyle via the patella tendon/ligament
A - Extension of the Knee
Sartorius
O - Anterior Superios Illiac Spine (ASIS)
I - Tibia (Pes Anserinus)
A - Flexion of the Hip
Flexion of the knee
Lateral Rotation of the Femur
-Longest muscle in the body
-Tailor’s Muscle - Actions to go into cross-leg position
Tibialis Anterior
O - Lateral Shaft of the Tibia I - Base of 1st Metatarsal A - Dorsiflexion Inversion Antagonist to Peronis Longus
Eunice Ingham
Founder of Reflexology
Psoas
O - L1 - L5
I - Lessor Trochanter of Femor (back of femur)
A - Flexion of the hip (strongest/initiates walking)
Lateral Rotation
One being tight, that leg will appear longer
Both Tight cause pelvis to tilt forward (anterior pelvic tilt)
Iliacus
O - Iliac Fossa - Anterior
I - Lessor Trochanter
A - Flexion of the Hip (2nd Strongest)
Lateral rotation
Quadratus Lumborum
Superior Attachment - 12th Rib Inferior Attachment - Iliac Crest A - Elevation of the hip (hip hiker) Lateral flexion of the Lumbar spine Deepest low back muscle Tight will make that leg shorter
Posterior Suboccipitals
Rectus Capitus Posterior Minor
Rectus Capitus Posterior Major
Obliquus Capitis Inferior
Obliquus Capitis Superior
O-occipital Ridge
I-C1 & C2
A-Extension & Rotation to same side
Platysma
O - Subcutaneous tissue surrounding clavicle
I -Base of mandible, skin of cheeks, orbicularis oris m.
A - Frowning and depression of mandible
Top most layer
Anterior Pelvic Tilt - Possible Causes
Tight muscles - Psoas, Illiacus, Rectus Femoris, TFL, Satorius
Weak muscles - Gluteus Muscles, Hamstrings
Seated posture has the most to do with anterior pelvic tilt
Peroneus Longus
O - Head of Fibula (smaller leg bone)
Lateral shaft of fibula
I - Base of the first metatarsal
A - Eversion of the foot & Plantarflexion