Teres Major
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Meaning: teres- long and rounded shape
Origin: lateral border of scapula
Insertion: greater tubercle of humerus
Action: lateral rotation at shoulder
Stretch:
Teres Minor
• Meaning: same as teres major
• Origin: inferior angle of scapula
• Insertion: intertubercular groove of the
humerus
• Action: adduction and medial rotation at the
shoulder (rotator cuff muscle)
• Stretch:
Deltoid Muscle
By: Hannah Thomas
Delta = Triangle, so it is triangular shaped
Origin: Clavicle and Scapula (Acromion and Adjacent Scapular Spine)
Insertion: Deltoid Tuberosity of Humerous
Primary Actions: Abduction at Shoulder
Stretches: Arm cross, shoulder roll
Pectoralis Major
Hillary Pyatt
“pectoralis major”- large
pectoral muscle
Origin- cartilege of ribs 2-6,
body of sternum and clavicle.
Insertion- greater tubercle of
humorous
Action- flexion, adduction, and
medial rotation at shoulder.
Exercise- pushup
Levator Scapulae
• Levator means to lift – lifts the
scapula
• Origin: Transverse Process of
first 4 cervical vertebrae
• Insertion: Vertebral border of
scapula
• Primary action: Elevate
scapula
• Stretch: Sit with feet flat on
the floor, relax shoulders,
bring chin back towards
shoulders, eyes look straight
ahead
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Tensor=to stretch; Fascia=band; Latae=side
Origin: Iliac crest
Insertion: Iliotibial tract
Action: Flexion, abduction, and medial
rotation at hip
Adductors
• An athlete pulls
one of these
muscles when
strains his/her
groin
– Adductor brevis
– Adductor longus
– Adductor magnus
– Pectineus
– Gracilis
ADDUCTORS
ORGIN
INSERTION
ACTION
Adductor Brevis:
Inferior ramus of
the pubis
Linea aspera of
pubis
Adduction, flexion,
and medial rotation
at hip
Adductor Longus:
Inferior ramus of
pubis posterior to
adductor brevis
Linea aspera of
pubis
Adduction, flexion,
and medial rotation
at hip
Adductor Magnus
Inferior ramus of
pubis posterior to
adductor brevis
Linea aspera of
pubis
Adduction at hip
joint; superior
portion produces
flexion, inferior
portion produces
extension
Pectineus
Superior ramus of
pubis
Inferior to lesser
Adduction, flexion,
trochanter of femur medial rotation at
hip joint
Gracillis
Inferior ramus at
pubis
Medial surface of
tibia inferior to
medial condyle
Flexion at knee;
adduction and
medial rotation at
hip
Transverse Abdominis Mackenzie Gordon
•Name: ‘Transverse’ refers to going across
•‘Vacuum’ excercise
Shape: Resembles the Big Dipper on its side
Location: Deepest of the abdominals, lateral to the rectus abdominis
Origin: Lateral inguinal ligament, iliac crest, thoracolumbar fascia,
cartilage of lower 6 ribs
Insertion: Abdominal aponeurosis to linea alba
Primary Actions: Compresses abdominal contents, assists respiration
Rectus Abdominis
•Name: ‘Rectus’ means strait
•Back bend
Shape: ‘Six pack’, vertical strip
Location: Superficial, medial to the external oblique
Origin: Pubic crest and pubic symphysis
Insertion:Cartilage of 5th, 6th, 7th ribs, and xiphoid process
Primary Actions: Flexes the vertebral column (allows you to stand up strait)
Vastus Intermedius
• Origin- anterior and lateral
surface of femur along
linea aspera
• Insertion- tibial tuberosity
by way of patellar ligament
• Primary actions- extension
at knee
• Exercise- quad stretch
Vastus Lateralis
• Origin- anterior and
inferior to greater
trocanter of femur
and along linea aspera
• Insertion- tibial
tuberosity by way of
patellar ligament
• Primary actionsextension at knee
• Exercise- quad stretch
Vastus Medalis
• Origin- entire length
of linea aspera of
femur
• Insertion- tibial
tuberosity by way of
patellar ligament
• Primary actionsextension at knee
• Exercise- quad stretch
SartoriusLatin root-Sartor (meaning tailor)-reference to the cross legged position
in which tailors sit.
Origin-Anterior superior spine of illeum.
Insertion-Medial surface of tibia, near tibial tuberocity.
Action-Flexion at knee; flexion and lateral rotation at hip.
Stretch/Exercise- Climbing stairs
Supraspinatus( above the spine)
• Origin: supraspinous fossa of the scapula
• Insertion: greater tubercle of the humerus
• Primary actions: abduction of the arm at the
shoulder (assists deltoid)
Infraspinatus (below the spine)
• Origin: infraspinous fossa of the scapula
• Insertion: same as above
• Primary actions: extension, horizontal (transverse)
extension and lateral rotation of humerus at the
shoulder joint
• Origin
– Spinous processes of the lower thoracic
vertebrae, ribs, and lumbar vertebrae
• Insertion
– Intertubercular groove of humerus
• Primary Actions
– Extension, adduction, and medial rotation at
shoulders
The name derives from the Greek word
"spléníon," which means bandage. Capitis
means of the head, and cervicis means of
the neck.
Origin
Spinous processes of lower cervical( 7th) and upper T3 or T4.
Insertion
Inserts under the Sternocleidomastoideus, into the mastoid process and
into the occipital bone and between the upper cervical vertebrae.
Action
Extends and rotates cervical spine The splenius muscle is a prime mover for
head extension.
Stretch
lateral flexion and rotation of the neck and hyper extending the neck.
ORIGIN
Spinous processes and supraspinous ligaments of T36.
Insertion
Posterior tubercles of transverse processes of C1-3.
ACTION
Extends and rotates cervical spine
Stretch
Internal and External Obliques
•Internal obliques are under external
ones
•External: Origin—lower 8 ribs
•Insertion—linea alba and iliac crest
•Action—compresses abdomen,
depresses ribs, flexes or laterally flexes
vertebral column
•Internal: Origin—Iliac crest, and
adjacent connective tissues
•Insertion—lower ribs, xiphoid of sternum
and linea alba
Internal and External Obliques
•Internal obliques are under external
ones
•External: Origin—lower 8 ribs
•Insertion—linea alba and iliac crest
•Action—compresses abdomen,
depresses ribs, flexes or laterally flexes
vertebral column
•Internal: Origin—Iliac crest, and
adjacent connective tissues
•Insertion—lower ribs, xiphoid of sternum
and linea alba