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Bio 211 > Muscles (exam 2) > Flashcards

Muscles (exam 2) Flashcards

1
Q

Semispinalis Capitis

A

(Muscle moving the head) Action: Extends and Rotates head

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2
Q

Splenius Capitis

A

(Muscle moving the head) Action: extends, rotates, and flexes laterally the head.

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3
Q

Sternocleidomastoid

A

(Muscle moving the head) Origin: Manubrium and clavicle. Insertion: Mastoid process and superior nuchal line of occipital bone. Action: Simultaneous contraction of both heads of muscle- flexion of head Individual contraction- rotates and flexes head to opposite side of contracting muscle.

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4
Q

Buccinator

A

(Muscle of facial expression) Action: Compresses (pulls inward) cheeks. (as in whistling and kissing).

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5
Q

Depressor labii inferioris

A

(muscle of facial expression) Action: Depresses lower lip (as in frowning or expression of doubt).

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6
Q

Levator labii superioris

A

(Muscle of facial expression) Action: Elevates upper lip (as in sneering).

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7
Q

Occipitofrontalis

A

(Muscle of facial expression) Action: Elevates eyebrows, wrinkles skin of forehead, draws scalp anteriorly (expressions of surprise or fright).

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8
Q

Orbicularis oculi

A

(muscle of facial expression) Action: Closes eye by depressing upper eyelid and elevating lower eyelid (blinking or squinting)

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9
Q

Orbicularis oris

A

(Muscle of facial expression) Action: compresses lip, protrudes and purses lip (as in kissing)

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10
Q

Platysma

A

(Muscle of facial expression) Action: depresses mandible, depresses lower lip back and down, tenses skin of neck

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11
Q

Zygomaticus

A

(Muscle of facial expression) Action: Retracts and elevates upper lip and corner of mouth (as in smiling)

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12
Q

Temporalis

A

(Muscle of Mastication) Origin: temporal lines on parietal and frontal bones. Insertion: Coronoid process of mandible. Action: Elevates and retracts mandible for biting and chewing

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13
Q

Masseter

A

(Muscle of Mastication) Origin: Zygomatic arch. Insertion: Lateral side of mandible. Action: Elevates and protracts mandible.

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14
Q

Digastric

A

(Hyoid muscle) Origin: Mastoid process (posterior belly), mandible near midline (anterior belly). Insertion: Hyoid.

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15
Q

Geniohyoid

A

(Hyoid muscle) Action: Protracts and elevates hyoid, depresses mandible.

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16
Q

Mylohyoid

A

(Hyoid muscle) Action: Elevates floor of mouth and hyoid during swallowing

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17
Q

Omohyoid

A

(Hyoid muscle) Action: Depresses hyoid, fixes hyoid for depression of mandible

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18
Q

Sternohyoid

A

(Hyoid muscle) Action: Depresses hyoid

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19
Q

Iliocostalis

A

(Muscle acting on the vertebral column) Action: Extends and flexes laterally vertebral column

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20
Q

Longissimus

A

(Muscle acting on the vertebral column) Action: Extends and flexes laterally vertebral column.

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21
Q

Spinalis

A

(Muscle acting on the vertebral column) Action: Extends vertebral column

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22
Q

Semispinalis

A

(Muscle acting on the vertebral column) Action: Extends neck and vertebral column

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23
Q

Interspinales

A

(Muscle acting on the vertebral column) Action: Extends back and neck

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24
Q

Multifidus

A

(Muscle acting on the vertebral column) Action: Extends and rotates vertebral column

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25
Q

Diaphragm

A

(Muscle of the thorax) Action: Depresses floor of thoracic cavity for inhalation.

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26
Q

External intercostals

A

(Muscle of the thorax) Action: Elevates ribs for inhalation

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27
Q

Internal intercostals

A

(Muscle of the thorax) Action: Depresses ribs for exhalation

28
Q

External Abdominal Oblique

A

(Muscle of the Abdominal) Action: Compression of Abdomen, flexion (lateral and anterior) and rotation of vertebral column.

29
Q

Internal Abdominal oblique

A

(Muscle of the Abdominal) Action: of abdomen, flexion (lateral and anterior), and rotation of vertebral column.

30
Q

Transverse Abdominis

A

(Muscle of the Abdominal) Action: Compression of of Abdomen.

31
Q

Rectus Abdominis

A

(Muscle of the Abdominal) Action: Compression of abdomen and flexion (anterior) of vertebral column.

32
Q

Pectoralis Minor

A

(Muscle that act upon the Scapula) Action: Depression and protraction of scapula.

33
Q

Serratus Anterior

A

(Muscle that act upon the Scapula) Action: Protraction and rotation of scapula.

34
Q

Rhomboid

A

(Muscle that act upon the Scapula) Action: Elevation, traction, and rotation of scapula.

35
Q

Trapezius

A

(Muscle that act upon the Scapula) Action:
Superior Fibers- elevation of scapula
Middle Fibers- retraction of scapula
Inferior Fibers- depression of scapua

36
Q

Deltoid

A

(Muscle Acting on the arm) Action: Abduction, flexion, extension, and rotation of the arm.

37
Q

Pectoralis Major

A

(Muscle Acting on the arm) Origin: Sternum, clavicle, and ribs.
Insertion: Intertuberular sulcus of humerus.
Action: Flexion, medial rotation, and adduction of arm.

38
Q

Latissimus Dorsi

A

(Muscle Acting on the arm) Action: Extension, medial rotation, and adduction of arm.

39
Q

Teres Major

A

(Muscle Acting on the arm) Action: Extension of shoulder, and adduction, and rotation of the arm.

40
Q

Supraspinatus (S)

A

(Muscle Acting on the arm)
Origin: Supraspinous fossa of scapula
Insertion: Greater Tubercle of humerus
Action: Abduction of arm.

41
Q

Infraspinatus (I)

A

(Muscle Acting on the arm)
Origin: Infraspinous fossa of scapula
Insertion: Greater Tubercle of humerus
Action: Adduction and lateral rotation of arm.

42
Q

Teres Minor (T)

A

(Muscle Acting on the arm)
Origin: Lateral edge of scapula
Insertion: Greater Tubercle of Humerus
Action: Adduction and lateral rotation of arm.

43
Q

Subscapularis (S)

A

(Muscle Acting on the arm)
Origin:Subscapular fossa
Insertion: Lesser tubercle of humerus.
Action: Medial Rotation of arm.

44
Q

Biceps Brachii

A

(Muscle Acting on the Forearm)
Origin: Scapula
Insertion: Radial Tuberosity
Action: Flexion and supination of forearm.

45
Q

Brachialis

A

(Muscle Acting on the Forearm)

Action: Flexion of forearm.

46
Q

Brachioradialis

A

(Muscle Acting on the Forearm)

Action: Flexion of forearm

47
Q

Triceps Brachii

A

(Muscle Acting on the Forearm)
Origin: Scapula and Humerus
Insertion: Olecranon process of Ulna
Action: Extension of forearm

48
Q

Pronator Teres

A

(Muscle Acting on the Forearm)

Action: Pronation of forearm

49
Q

Supinator

A

(Muscle Acting on the Forearm)

Action: Supination of forearm

50
Q

Flexor Carpi radialis

A

(Muscle of forearm acting on wrist, hands, and fingers)

Action: Flexion of wrist and Abduction of hand.

51
Q

Flexor Carpi Ulnaris

A

(Muscle of forearm acting on wrist, hands, and fingers)

Action: Flexion of wrist and adduction of hand.

52
Q

Flexor Digitorum

A

(Muscle of forearm acting on wrist, hands, and fingers)

Action: Flexion of wrist and digits.

53
Q

Extensor Carpi Radialis

A

(Muscle of forearm acting on wrist, hands, and fingers)

Action: Extension of wrist and abduction of hand

54
Q

Extensor Carpi Ulnaris

A

(Muscle of forearm acting on wrist, hands, and fingers)

Action: Extension of wrist an adduction of hand.

55
Q

Extensor Digitorum

A

(Muscle of forearm acting on wrist, hands, and fingers)

Action: Extension of wrist and digits.

56
Q

Iliopsoas

A

(Muscle Acting on the thigh)

Action: Flexion of thigh at hip

57
Q

Gluteus Maximus

A

(Muscle Acting on the thigh)
Origin: Ilium, sacrum and coccyx
Insertion: Posterior side of femur
Action: Extension and lateral rotation of thigh at hip.

58
Q

Gluteus Medius

A

(Muscle Acting on the thigh)
Origin: Ilium
Insertion: Greater trochanter of femur
Action: Abduction of thigh at hip

59
Q

Gluteus Minimus

A

(Muscle Acting on the thigh)
Origin: Ilium
Insertion: Greatr Trochanter of femur
Action: Abduction of thigh at hip

60
Q

Quadriceps Femoris

A

(Muscle of the Thigh)
Origin: Ilium, greater trochanter of femur and shaft of femur.
Insertion: Tibial Tuberosity of tibia
Action: Extension of the knee

61
Q

Sartorius

A

(Muscle of the Thigh)

Action: Flexion of thigh and knee and lateral rotation of thigh.

62
Q

Adductors

A

(Muscle of the Thigh)

Action: Adduction of Thigh

63
Q

Hamstrings

A

(Muscle of the Thigh)

Action: Flexion of the knee.

64
Q

Gastrocnemius

A

(Muscle acting on Leg, Ankle, and Foot)
Origin: Lateral and medial condyles of femur
Insertion: Calcaneus (gastrocnemius and soleus attach to calcaneus via the calcaneal tendon).
Action: Flexion of the foot.

65
Q

Soleus

A

(Muscle acting on Leg, Ankle, and Foot)

Action: Flexion of foot.

Bio 211 (2 decks)

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