Posterior Cadaver Muscle Flashcards
What muscle is #1?What are its origins, insertions, and actions?
Trapezius
O: occipital bone, spinous process of C7-T12
I: acromion and spine of scapula, clavicle
A: elevate or depress scapula, retract and upwardly rotate scapula
What muscle is #2?What are its origins, insertions, and actions?
Latissimus Dorsi
O: spinous process of T7-T12, ribs 9-12, iliac crest
I: Intertubercular groove
A: extends, adducts, medially rotates arm
What muscle is #3?What are its origins, insertions, and actions?
Levator Scapulae
O: transverse process of C1-C4
I: medial border
A: elevated, retracts, downwardly rotates scapula
What muscle is #4?What are its origins, insertions, and actions?
Rhomboid Major
O: spinous process of T2-T5
I: medial border
A:retracts and downwardly rotates scapula
What muscle is #5?What are its origins, insertions, and actions?
Rhomboid Minor
O: spinous process of C7-T1
I: medial border
A: retracts and downwardly rotates scapula
What muscle is #6?What are its origins, insertions, and actions?
Supraspinatus
O: Supraspinous fossa
I: glenoid tubercle
A: abducts arm
What muscle is #7?What are its origins, insertions, and actions?
Infraspinatus
O: infraspinous fossa
I: glenoid tubercle
A: laterally rotates arm
What muscle is #8?What are its origins, insertions, and actions?
Teres Minor
O: lateral border
I: glenoid tubercle
A: laterally rotates arm
What muscle is #9?What are its origins, insertions, and actions?
Teres Major
O: inferior angle
I: medially lip of inter-tubercular sulcus
A: adducts, extends, medially rotates arm
What muscle is #10?
Splenius Capitis
What muscle is #11?
Semispinalis Capitis
What muscle is #12?
Iliocostalis
What muscle is #13?
Longissimus
What muscle is #14?
Spinalis
What muscle is #1? What are its origin, insertion, and actions?
Triceps Brachii Long Head
O: infraglenoid tubercle
I: olecranon process
A: extends forearm
What muscle is #2? What are its origin, insertion, and actions?
Triceps Brachii Lateral Head
O: shaft of humerus
I: olecranon process
A: extends forearm
What muscle is #3? What are its origin, insertion, and actions?
Triceps Brachii Medial Head
O: shaft of humerus
I: olecranon process
A: extends forearm
What muscle is #4? What are its origin, insertion, and actions?
Subscapularis
O: subscapular fossa
I: lesser tubercule
A: medically rotates arm
What muscle is #1?
Flexor Carpi Radialis
What muscle is #2?
Palmaris Longus
What muscle is #3?
Flexor Carpi Ulnaris
What muscle is #4?
Pronator Teres
What muscle is #5?
Brachioradialis
What muscle is #6?
Flexor Digitorum Superficialis
What muscle is #7?
Supinator
What muscle is #8?
Flexor Digitorum Profundus
What muscle is #9?
Flexor Pollicis Longus
What muscle is #10?
Pronator Quadratus
What muscle is #1?
Abductor Pollicis Brevas
What muscle is #2?
Flexor Pollicis Brevis
What muscle is #3?
Opponens Pollicis
What muscle is #4?
Adductor Pollicis
What muscle is #5?
Abductor Digiti Minimi
What muscle is #6?
Flexor Digiti Minimi Brevis
What muscle is #7?
Opponens Digiti Minimi
What muscle is #8?
Lumbricals
What muscle is #9?
Palmar Interossei
What is muscle #1? What are its origins, insertions, and actions?
Gluteus Maximus
O: Ilium, Sacrum, Coccyx
I: Gluteal tuberosity, iliotibial tract
A: extends, laterally rotates, abducts thigh
What is muscle #2? What are its origins, insertions, and actions?
Gluteus Medius
O: gluteal surface
I: greater trochanter
A: abducts, medially rotates thigh
What is muscle #3? What are it’s origins, insertions, and actions?
Gluteus Minimus
O: gluteal surface
I: greater trochanter
A: abducts, medially rotates thigh
What is muscle #4? What are its origins, insertions, and actions?
Piriformis
O: anterior sacrum
I: greater trochanter
A: laterally rotates thigh, horizontal abduction/extension
What is muscle #5? What are its origins, insertions, and actions?
Obturator Internus
O: greater sciatic notch, obturator foreamen
I: greater trochanter
A: laterally rotates thigh, horizontal abduction/extension
What is muscle #6? What are its origins, insertions, and actions?
Long Head
O: ischial tuberosity
I: fibula head, lateral condyle of tibia
A: extends thigh, flexes, & laterally rotates leg
What is muscle #7? What are its origins, insertions, and actions?
Semitendinosus
O: ischial tuberosity
I: shaft of tibia
A: extends thigh, flexes & medially rotates leg
What is muscle #8? What are its origins, insertions, and actions?
Semimembranosus
O: ischial tuberosity
I: medial condyle
A: extends thigh, flexes & medially rotates leg
What is muscle #9? What are its origins, insertions, and actions?
Superior Gemellus
O: ischial spine
I: greater trochanter
A: laterally rotates thigh, horizontal abduction/extension
What is muscle #10? What are its origins, insertions, and actions?
Inferior Gemellus
O: ischial spine
I: greater trochanter
A: laterally rotates thigh, horizontal abduction/extension
What is muscle #11? What are its origins, insertions, and actions?
Quadratus Femoris
O: ischial tuberosity
I: intertrochanteric crest
A: laterally rotates thigh
What is muscle #12? What are its origins, insertions, and actions?
Short Head
O: linea aspera
I: fibula head, lateral condyle of tibia
A: flexes & laterally rotates leg
What is muscle #1? What are its origins, insertions, and actions?
Gastrocnemius
O: lateral & medial condyles of femur
I: calcaneus via calcaneal tendon
A: plantar flexion, flex leg
What is muscle #2? What are its origins, insertions, and actions?
Soleus
O: tibia, fibula, i.o. membrane
I: calcaneus via achilles tendon
A: plantar flexion
What is muscle #3? What are its origins, insertions, and actions?
Plantaris
O: femur
I: calcaneus via calcaneal tendon
A: flexes leg, plantar flexion
What is muscle #4? What are its origins, insertions, and actions?
Popliteus
O: lateral condyle
I: proximal tibia
A: flexes & medially rotates leg to unlock knee
What is muscle #5? What are its origins, insertions, and actions?
Flexor Digitorum Longus
O: shaft of tibia
I: distal phalanges 2-5
A: plantar flexion, inversion, flexes digits 2-5
What is muscle #6? What are its origins, insertions, and actions?
Tibialis Posterior
O: tibia, fibula, i.o. membrane
I: navicular, cuneiforms, metatarsals 2-4
A: plantar flexion, inversion
What is muscle #7? What are its origins, insertions, and actions?
Flexor Hallucis Longus
O: shaft of tibia, i.o. membrane
I: 1st distal phalanx
A: plantar flexion, inversion, flexes hallux
What is muscle #8? What are its origins, insertions, and actions?
Fibularis Brevis
O: fibula shaft
I: 5th metatarsal
A: plantar flexion, eversion
What is muscle #9? What are its origins, insertions, and actions?
Fibularis Longus
O: head of fibula
I: medial cuneiform, 1st metatarsal
A: plantar flexion, eversion
What is muscle #10?
Extensor Digitorum Brevis
What is muscle #1?
Abductor Digiti Minimi
What is muscle #2?
Flexor Digitorum Brevis
What is muscle #3?
Abductor Hallucis
What is muscle #4?
Flexor Accessorius
What is muscle #5?
Flexor Digitorum Longus Tendons
What is muscle #6?
Flexor Hallucis Longus Tendons
What is muscle #7?
Lumbricals
What is muscle #8?
Flexor Digiti Minimi Brevis
What is muscle #9?
Adductor Hallucis
What is muscle #10?
Flexor Hallucis Brevis
What is muscle #11?
Interosseous Muscles
