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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
Diaphragm
(Muscle of the thorax) Action: Depresses floor of thoracic cavity for inhalation.
26
External intercostals
(Muscle of the thorax) Action: Elevates ribs for inhalation
27
Internal intercostals
(Muscle of the thorax) Action: Depresses ribs for exhalation
28
External Abdominal Oblique
(Muscle of the Abdominal) Action: Compression of Abdomen, flexion (lateral and anterior) and rotation of vertebral column.
29
Internal Abdominal oblique
(Muscle of the Abdominal) Action: of abdomen, flexion (lateral and anterior), and rotation of vertebral column.
30
Transverse Abdominis
(Muscle of the Abdominal) Action: Compression of of Abdomen.
31
Rectus Abdominis
(Muscle of the Abdominal) Action: Compression of abdomen and flexion (anterior) of vertebral column.
32
Pectoralis Minor
(Muscle that act upon the Scapula) Action: Depression and protraction of scapula.
33
Serratus Anterior
(Muscle that act upon the Scapula) Action: Protraction and rotation of scapula.
34
Rhomboid
(Muscle that act upon the Scapula) Action: Elevation, traction, and rotation of scapula.
35
Trapezius
(Muscle that act upon the Scapula) Action: Superior Fibers- elevation of scapula Middle Fibers- retraction of scapula Inferior Fibers- depression of scapua
36
Deltoid
(Muscle Acting on the arm) Action: Abduction, flexion, extension, and rotation of the arm.
37
Pectoralis Major
(Muscle Acting on the arm) Origin: Sternum, clavicle, and ribs. Insertion: Intertuberular sulcus of humerus. Action: Flexion, medial rotation, and adduction of arm.
38
Latissimus Dorsi
(Muscle Acting on the arm) Action: Extension, medial rotation, and adduction of arm.
39
Teres Major
(Muscle Acting on the arm) Action: Extension of shoulder, and adduction, and rotation of the arm.
40
Supraspinatus (S)
(Muscle Acting on the arm) Origin: Supraspinous fossa of scapula Insertion: Greater Tubercle of humerus Action: Abduction of arm.
41
Infraspinatus (I)
(Muscle Acting on the arm) Origin: Infraspinous fossa of scapula Insertion: Greater Tubercle of humerus Action: Adduction and lateral rotation of arm.
42
Teres Minor (T)
(Muscle Acting on the arm) Origin: Lateral edge of scapula Insertion: Greater Tubercle of Humerus Action: Adduction and lateral rotation of arm.
43
Subscapularis (S)
(Muscle Acting on the arm) Origin:Subscapular fossa Insertion: Lesser tubercle of humerus. Action: Medial Rotation of arm.
44
Biceps Brachii
(Muscle Acting on the Forearm) Origin: Scapula Insertion: Radial Tuberosity Action: Flexion and supination of forearm.
45
Brachialis
(Muscle Acting on the Forearm) | Action: Flexion of forearm.
46
Brachioradialis
(Muscle Acting on the Forearm) | Action: Flexion of forearm
47
Triceps Brachii
(Muscle Acting on the Forearm) Origin: Scapula and Humerus Insertion: Olecranon process of Ulna Action: Extension of forearm
48
Pronator Teres
(Muscle Acting on the Forearm) | Action: Pronation of forearm
49
Supinator
(Muscle Acting on the Forearm) | Action: Supination of forearm
50
Flexor Carpi radialis
(Muscle of forearm acting on wrist, hands, and fingers) | Action: Flexion of wrist and Abduction of hand.
51
Flexor Carpi Ulnaris
(Muscle of forearm acting on wrist, hands, and fingers) | Action: Flexion of wrist and adduction of hand.
52
Flexor Digitorum
(Muscle of forearm acting on wrist, hands, and fingers) | Action: Flexion of wrist and digits.
53
Extensor Carpi Radialis
(Muscle of forearm acting on wrist, hands, and fingers) | Action: Extension of wrist and abduction of hand
54
Extensor Carpi Ulnaris
(Muscle of forearm acting on wrist, hands, and fingers) | Action: Extension of wrist an adduction of hand.
55
Extensor Digitorum
(Muscle of forearm acting on wrist, hands, and fingers) | Action: Extension of wrist and digits.
56
Iliopsoas
(Muscle Acting on the thigh) | Action: Flexion of thigh at hip
57
Gluteus Maximus
(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
Gluteus Medius
(Muscle Acting on the thigh) Origin: Ilium Insertion: Greater trochanter of femur Action: Abduction of thigh at hip
59
Gluteus Minimus
(Muscle Acting on the thigh) Origin: Ilium Insertion: Greatr Trochanter of femur Action: Abduction of thigh at hip
60
Quadriceps Femoris
(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
Sartorius
(Muscle of the Thigh) | Action: Flexion of thigh and knee and lateral rotation of thigh.
62
Adductors
(Muscle of the Thigh) | Action: Adduction of Thigh
63
Hamstrings
(Muscle of the Thigh) | Action: Flexion of the knee.
64
Gastrocnemius
(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
Soleus
(Muscle acting on Leg, Ankle, and Foot) | Action: Flexion of foot.

Bio 211 (2 decks)

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