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Anatomy exam 3 > appendicular muscles > Flashcards

appendicular muscles Flashcards

(50 cards)

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1
Q

originate on the axial skeleton and insert on the clavicle and scapula

A

muscles of the pectoral girdle

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2
Q

Pectoralis Minor
Location
Action

A

Location - anterior thoracic muscle, deep to pectoralis major

Action - protract and depress scapula

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3
Q

Serratus Anterior
Location
Action

A

Location -lateral surface of upper ribs, under axillary region

Action - protracts and depress the scapula. Stabilizes the scapula to body. Superiorly rotates the scapula

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4
Q

Rhomboid Major
Rhomboid Minor
Location
Action

A

Location - deep to the trapezius

Action - retract (adduct), elevate and inferiorly rotate scapula

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5
Q

Trapezius
Location
Origin
insertion
Action

A

Location - diamond shape muscle that extends from the skull and vertebral column to pectoral girdls

Origin - Occipital bone (superior nuchal line) spinous processes of C7-T12

Insertion - clavicle, acromion and spine of scapula

Action - elevates and adducts the scapula, extends neck

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6
Q

Latissimus Dorsi
Location
Origin
Insertion
Action

A

Location - Triangular muscle on the inferior part of the back

Origin - Spinous processes of T7-T12, lower ribs, iliac crest, thoracolumbar fascia

Insertion - intertubercular groove of humerus

Action - Prime mover of arm extension, draws humerus down and back while rotating medially, adduction “swimmers muscle”

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7
Q

Pectoralis Major
Location
Origin
Insertion
Action

A

Location - Chest - superior portion of thorax

Origin - medial clavicle, costal cartilage of upper ribs and sternum

Insertion - lateral part of interrubercular groove of the humerus

Action - flex, adduct, and internally (medially) rotate the shoulder/arm

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8
Q

Deltoid
Location
Origin
Insertion
Action

A

Location - Shoulder (good site for intramuscular injections)

Origin - acromion end of clavicle, the acromion and the spine of the scaupla

Insertion - deltoid tuberosity of the humerus

Action - Anterior fibers - flex and medially rotate arm
Middle fibers - Prime abductor of arm
Posterior fibers - extend and laterally rotate arm

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9
Q

Corocobrachialis
Location
Action

A

Locaiton - axillary region under biceps brachii

Action - flexing and adduction the arm

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10
Q

Teres Major
Location
Action

A

Location - just superior and deep to latissimus dorsi

Action - arm extension, draws humerus down and back (adduction) while rotating it medially (mini latissimus dorsi)

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11
Q

What four muscles make up the rotator cuff

A

supraspinatus, infrapinatus, Teres Minor, subscapularis (SITS muscles)

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12
Q

Supraspinatus
Location
Action

A

Location - Superior to scapular spine

Action - Abducts the arm and depress the head of the humerus

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13
Q

Infraspinatus
Location
Action

A

Location - infraspunous fossa

Action - laterally rotate and stabilizes arm

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14
Q

Infraspinatus/ teres minor
Location
Action

A

Location - Infraspinatus - inferior to scapular spine
Teres Minor - Just superior to the teres major

Action -Adducts and laterally rotates the shoulder joint

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15
Q

subscapularis
Location
Action

A

Location - anterior surface of the scapula

Action - internally (medially) rotate the shoulder/arm

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16
Q

this divides the muscles of the brachium in to an anterior compartment and a posterior compartmetn

A

deep fascia

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17
Q

Biceps Brachii
Location
Origin
Insertion
Action

A

Location - Anterior portion of humerus

Origin - Long head - supraglendoid tubercle of scapula
Short head - coracoid process of scapula

Insertion - radial tuberosity of radius, bicipital aponeurosis

Action - flexes elbow joint, supinator of forearm at elbow joint, long head flexes the shoulder

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18
Q

Triceps brachii
Location
Origin
Insertion
Action

A

Location - Posterior portion of humerus

Origin - Long head - infraglenoid tubercle of scapula
Lateral head - posterior humerus above radial grove
Medial head - posterior humerus below radial grove

Insertion - olecranon of ulna

Action- extends the elbow joint

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19
Q

are there muscles located within your digits

A

no

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20
Q

the anterior compartment muscles of the forearm are

A

flexors of the wrist and fingers

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21
Q

the posterior compartment muscles of the forearm are

Study These Flashcards
A

extensors of the wrist and fingers

22
Q

flexor retinaculum

Study These Flashcards
A

hold the tendons close and prevents them from bowstringing outward in the wrist. Median nerve passes through here which is the cause of carpal tunnel

23
Q

lateral compartment of thight

Study These Flashcards
A

abductor of the thigh

24
Q

anterior compartment of the thigh

Study These Flashcards
A

extensors of the knee or flexors of the thigh

25
posterior compartment of the thigh
flexors of the knee and extensors of the thigh
26
medial compartment of the thigh
adductors of the thigh
27
hip flexor muscles and actions
Psoas major and illacus (iliopsoas) Action - flex the hip joint
28
Sartorius muscle Location origin insertion Action
Location - obliquely crosses the anterior aspect of the thigh Origin - anterior superior iliac spine Insertion - medial side of tibial tuberosity (pes ansurine) Action - flexes thigh and laterally rotates thigh. Flexes leg and knee joint and rotates crural region medially (crossing legs) Action -
29
gracilis location action
location - medial surface of thigh Action - adducts hip joint and flexes leg at knee joint
30
tensor fascia latae Location origin insertion action
location - iliotibal tract band (I.T. band) Origin - iliac crest and lateral surface of the anterior superior iliac spine Insertion - Iliotibial track (IT band) Action - abducts thigh at hip join Medially rotates thigh
31
site of pain with IT band syndrome
lateral side of knee (common in runners)
32
Iliotibial tract/band
extends down the lateral thigh. inserts on the lateral tibial condyle
33
Gluteus Maximus Location Origin insertion Action
location - Buttocks muscle (good for injections) Origin - Iliac crest, sacrum and coccyx Insertion - IT band, linea aspera of femur and gluteal tuberosity of femur Action - extends the hip joint, laterally rotates hip joint
34
Piriformis muscle
deep to gluteus maximus when tight it can pinch the sciatic nerve (piriformis syndrome)
35
Rectus femoris Location origin insertion action
Location - Middle anterior thigh Origin - Anterior inferior iliac spine Insertion - quadriceps tendon Action - extends leg and knee joint
36
Vastus Lateralis Location Origin Insertion Action
Location - aneriolateral surface of thigh Origin - Greater trochanter and linea aspera of femur Insertion - quadriceps tendon Action - extends leg and knee joint
37
Vastus Medialis Location Origin Insertion Action
Location - anermedial surface of thight Origin - intertrochanteric line and linea aspera of femur Insertion - quadriceps tendon Action - extends the leg at knee joint
38
Vastus intermedius Location origin insertion action
location - deep to rectus femoris Origin - anterior and lateral surface of thigh Insertion - quadriceps tendon Action - extends the leg at knee joint
39
Bicep Femoris Location Origin insertion action
Location - Posterior lateral surface of the thigh Origin - Long head - ischial tuberosity Short heat - Linea aspera of femur Insertion - Head of fibula Action - Extends thigh and flexes leg at knee joint. Laterally rotates leg
40
what does the bicep femoris tendon of insertion form
lateral margin of the popliteal fossa
41
Semimembranosous Location Origin Insertion Action
Location - deep and medial to semitendinosous Origin - ischial tuberosity Insertion - Posterior surface of medial condyle of tibia Action - Extends thigh and flexes leg at knee joint. Medially rotates leg
42
Semitendinosus Location Origin Insertion Action
Location - Posterior medial surface of thigh Origin - ischial tuberosity Insertion - Pes ansurine (proximal medial surface of the tibia Action - Extends thigh and flexes leg at knee joint. Medially rotates leg
43
What 3 muscles insert on the Pes Ansurine
Sartorius Gracilis Semitendinosus
44
Tibialis Anterior Location Action
Location - anterolateral compartment of the leg Action - dorsiflex the ankle and invert the foot at the ankle
45
Peroneus (fibularis) Longus Location Action
Location - Superficial lateral, covers fibula Action - evert and plantarflex the foot at the ankle
46
Gastrocnemius Location Origin insertion Action
Location - calf muscle Origin - Superior posterior medial and lateral condyles of femur Insertion - Calcaneus via the Achilles tendon Action - Plantarflexes foot and flexes knee joint
47
Soleus Location Action
Location - Deep to gastrocnemius Action - Plantarflex the foot at the ankle
48
What are the gastrocnemeus and soleus collectively known as
Triceps Surae
49
Originate and insert in the foot. Support the arches and move the toes
Intrinsic muscles of the foot
50
Plantar fascia/aponeurosis
Plantar surface of foot. Extends between the phalanges of the toes and the calcaneus

Anatomy exam 3 (6 decks)

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