Chapter 11 - Muscle to know Flashcards Preview

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Flashcards in Chapter 11 - Muscle to know Deck (44):
1

Orbicularis Oris
Origin, Insertion, Action

Origin- opening of mouth
Insertion- skin at corner of mouth
Action - closes and protrudes lips, shapes lips for speech

2

Orbicularis Oculi
Origin, Insertion, Action

Origin - Medial wall of orbit
Insertion - circular path around orbit
action - closes eye

3

Frontalis
Origin, Insertion, Action

Origin - Epicranial aponeurosis
Insertion - skin superior to supraorbital margin
action - draws scalp anteriorly, raises eyebrows

4

Occipitalis
Origin, Insertion, Action

origin - occipital and temporal bones
insertion - epicranial aponeurosis
action - draws scalp posteriorly

5

Temporalis
Origin, Insertion, Action

origin - temporal bone
insertion - mandible
action- elevates and retracts mandible

6

Buccinator
Origin, Insertion, Action

origin - maxilla and mandible
insertion - orbicularis oris
action - presses cheek against teeth

7

Masseter
Origin, Insertion, Action

origin -maxilla and zygomatic arch
insertion - mandible
action - elevates mandible

8

Extrinsic Eye Muscles
Origin, Insertion, Action

origin - back of orbit
insertion - different parts of the eyeball
action- precise and rapid eye movements

9

Sternocleidomastoid
Origin, Insertion, Action

origin- clavicle and sternum
insertion- temporal bone
action- flex and rotate the head

10

Scalene Muscles
Origin, Insertion, Action

origin - cervical vertebrae
insertion - 1st and 2nd ribs
action - flex neck, elevate 1st and 2nd rib

11

Splenis Capitis
Origin, Insertion, Action

origin - C7-T4
insertion - occipital and temporal bones
action- flex neck, elevate 1st and 2nd rib

12

Erector Spinae
Origin, Insertion, Action

origin- ribs and illiac crest
insertion - ribs
action - extend and maintain erect posture

13

Pectoralis Minor
Origin, Insertion, Action

origin - 2nd - 5th ribs
insertion - scapula
action - abducts scapula, and rotates it downward

14

Pectoralis Major
Origin, Insertion, Action

origin - clavicle and sternum
insertion - proximal humerus
action - adducts and medially rotates the arm at the shoulder joint

15

Lastissimus Dorsi
Origin, Insertion, Action

origin - spines of T7-L5 and iliac bone
insertion - mid humerus
action - drives are anteriorly and posteriorly

16

Biceps Brachii
Origin, Insertion, Action

origin- scapula
insertion - radius
action - flexes forearm at elbow joint and flexes arm at shoulder joint

17

Diaphragm
Origin, Insertion, Action

origin- Xiphoid Process, inferior 6 ribs, lumbar vertebrae
insertion - central tendon
action -normal inhalation

18

External Intercostals
Origin, Insertion, Action

origin- inferior border or rib above
insertion - superior border of rib below
action - normal breathing

19

Internal intercostals
Origin, Insertion, Action

origin- superior border or rib below
insertion - inferior border of rib above
action - deep breathing

20

Trapezius
Origin, Insertion, Action

origin- occipital bone and cervical spine
insertion - clavicle and acromion and scapula spine
action- moves scapula up, down, in, and out

21

Deltoid
Origin, Insertion, Action

origin- clavicle and upper scapula
insertion- humerus
action- abducts, flexes, and medially rotates the upper arm

22

Rectus abdominus
Origin, Insertion, Action

origin-pubic bone
insertion- ribs 5-7 and xiphoid process
action - flexes vertebral column, compresses abdomen

23

External Oblique
Origin, Insertion, Action

origin - ribs 5-12
insertion - iliac crest and linea alba
action- compresses abdomen and sideways bending

24

Internal Oblique
Origin, Insertion, Action

origin- iliac crest, inguinal ligament, lumbar fascia
insertion- ribs 7-10 and linea alba
action- compresses abdomen and sideways bending

25

Triceps Brachii
Origin, Insertion, Action

origin- scapula and posterior surface of humerus
insertion- olecranon process of ulna
action- extends forearm at elbow joint and arm at shoulder joint

26

Brachioradialis
Origin, Insertion, Action

origin- humerus
insertion- distal radius
action- supinates forearm at the radioulnar joint

27

Thenar
Origin, Insertion, Action

origin- wrist tendons
insertion- thumb
action - oppose thumb

28

Hypothenar
Origin, Insertion, Action

origin- wrist tendons
insertion- little finder
action- oppose thumb

29

Urinary Sphincter
Origin, Insertion, Action

origin- Ischial and Pubic Rami
insertion- median raphe (male), vaginal wall (female)
action - help expel urine

30

External Anal Sphincter
Origin, Insertion, Action

origin- anococcygeal ligament
insertion- perineal body of perineum
action- keeps anal canal and anus closed

31

Levator ani
Origin, Insertion, Action

origin- pubis and ischial spine
insertion- coccyx
action- supports and maintains position of pelvic viscera

32

Gluteus Maximus
Origin, Insertion, Action

origin- iliac crest, saccrum, coccyx
insurtion- femur
action- extends thigh at hip joint

33

Gluteus Minimus
Origin, Insertion, Action

origin- illium
insertion- femur
action- abducts thigh at hip joint, rotates thigh medially

34

Gluteus Minimus
Origin, Insertion, Action

origin- ilium
insertion- femur
action- abducts thigh at hip joint, rotates thigh medially

35

Psoas Major
Origin, Insertion, Action

origin- lumbar vertebrae
insertion- femur
action- flex thigh at hip joint, laterally rotate thigh, flex trunk on hip

36

Iliacus
Origin, Insertion, Action

origin- iliac crest, saccrum
insertion- femur
action- flex thigh at hip joint, laterally rotate thigh, flex trunk on hip

37

What muscles combine together to form the Quadricep Group?

rectus femoris
vastus lateralis
vastus intermedius
vastus medialis

38

Quadricep Group
Origin, Insertion, Action

origin- iliac spine and proximal femur
insertion- patella and proximal tibia
action- flexes thigh at hip joint, and extends leg at knee joint

39

Adductors
Origin, Insertion, Action

origin- pubis
insertion- femur
action- adducts and flexes thigh at hip joint and rotates thigh

40

what muscle groups combine together to form the Hamstring group?

biceps femoris
semitendinosus
semimembranosus

41

Hamstring Group
Origin, Insertion, Action

origin- Ischial tuberosity
insertion- proximal tibia and fibula
action- flexes leg at knee joint and extends thigh at hip joint

42

Tibialis anterior
Origin, Insertion, Action

origin- tibia
insertion- first cuneiform and first metatarsal
action- dorsiflexes and inverts foot

43

What muscles combine to form the Gastrocsoleus

gastrocnemius and soleus muscles

44

Gastrocsoleus
Origin, Insertion, Action

origin- femur, capsule of knee, head of fibula
insertion - calcaneus
action- plantar flexes foot