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BIOL 110 > Chapter 11 - Muscle to know > Flashcards

Chapter 11 - Muscle to know Flashcards

1
Q

Orbicularis Oris

Origin, Insertion, Action

A

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

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2
Q

Orbicularis Oculi

Origin, Insertion, Action

A

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

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3
Q

Frontalis

Origin, Insertion, Action

A

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

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4
Q

Occipitalis

Origin, Insertion, Action

A

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

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5
Q

Temporalis

Origin, Insertion, Action

A

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

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6
Q

Buccinator

Origin, Insertion, Action

A

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

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7
Q

Masseter

Origin, Insertion, Action

A

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

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8
Q

Extrinsic Eye Muscles

Origin, Insertion, Action

A

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

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9
Q

Sternocleidomastoid

Origin, Insertion, Action

A

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

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10
Q

Scalene Muscles

Origin, Insertion, Action

A

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

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11
Q

Splenis Capitis

Origin, Insertion, Action

A

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

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12
Q

Erector Spinae

Origin, Insertion, Action

A

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

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13
Q

Pectoralis Minor

Origin, Insertion, Action

A

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

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14
Q

Pectoralis Major

Origin, Insertion, Action

A

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

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15
Q

Lastissimus Dorsi

Origin, Insertion, Action

A

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

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16
Q

Biceps Brachii

Origin, Insertion, Action

A

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

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17
Q

Diaphragm

Origin, Insertion, Action

A

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

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18
Q

External Intercostals

Origin, Insertion, Action

A

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

19
Q

Internal intercostals

Origin, Insertion, Action

A

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

20
Q

Trapezius

Origin, Insertion, Action

A

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

21
Q

Deltoid

Origin, Insertion, Action

A

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

22
Q

Rectus abdominus

Origin, Insertion, Action

A

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

23
Q

External Oblique

Origin, Insertion, Action

A

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

24
Q

Internal Oblique

Origin, Insertion, Action

A

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

25
Q

Triceps Brachii

Origin, Insertion, Action

A

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

26
Q

Brachioradialis

Origin, Insertion, Action

A

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

27
Q

Thenar

Origin, Insertion, Action

A

origin- wrist tendons
insertion- thumb
action - oppose thumb

28
Q

Hypothenar

Origin, Insertion, Action

A

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

29
Q

Urinary Sphincter

Origin, Insertion, Action

A

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

30
Q

External Anal Sphincter

Origin, Insertion, Action

A

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

31
Q

Levator ani

Origin, Insertion, Action

A

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

32
Q

Gluteus Maximus

Origin, Insertion, Action

A

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

33
Q

Gluteus Minimus

Origin, Insertion, Action

A

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

34
Q

Gluteus Minimus

Origin, Insertion, Action

A

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

35
Q

Psoas Major

Origin, Insertion, Action

A

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

36
Q

Iliacus

Origin, Insertion, Action

A

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

37
Q

What muscles combine together to form the Quadricep Group?

A

rectus femoris
vastus lateralis
vastus intermedius
vastus medialis

38
Q

Quadricep Group

Origin, Insertion, Action

A

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

39
Q

Adductors

Origin, Insertion, Action

A

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

40
Q

what muscle groups combine together to form the Hamstring group?

A

biceps femoris
semitendinosus
semimembranosus

41
Q

Hamstring Group

Origin, Insertion, Action

A

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

42
Q

Tibialis anterior

Origin, Insertion, Action

A

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

43
Q

What muscles combine to form the Gastrocsoleus

A

gastrocnemius and soleus muscles

44
Q

Gastrocsoleus

Origin, Insertion, Action

A

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

BIOL 110 (17 decks)

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