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BIO 241 A&P Spring 2022 SCC > Muscles Chapter 11 Test > Flashcards

Muscles Chapter 11 Test Flashcards

1
Q

Epicranial aponeurosis

A

draws scalp anteriorly and posteriorly; skin of supraorbital margin

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2
Q

orbicularis oculi

A

closes eyes

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3
Q

levator labii superioris

A

elevates lower lip

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4
Q

zygomaticus major

A

origin zygomatic bone

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5
Q

depressor labii inferioris

A

depresses lower lip

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6
Q

orbicularis oris

A

closes lips

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7
Q

extrinsic eye muscles

A

3 pairs of muscles move the eyes. Includes: superior and inferior recti, lateral and medial recti, superior and inferior obliques

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8
Q

lateral pterygoid

A

depression of mandible

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9
Q

masseter

A

Origin: zygomatic arch; Insertion: lateral surface of mandibular ramus and angle; elevation of mandible

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10
Q

deglutition

A

swallowing

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11
Q

glenioglossus

A

Origin: mandible; pulls tongue downward and forward

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12
Q

styloglossus

A

Origin: styloid process; pulls tongue upward and backward

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13
Q

hyoglossus

A

Origin: hyoid bone; pulls tongue downward and flattens it

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14
Q

sternocleidomastoid

A

Origin: manubrium of sternum and clavicle; insertions: mastoid process; flexion of cervical vertebrae and rotation of the head

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15
Q

diaphragm inhalation

A

contraction of this muscle, causes muscle to flatten

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16
Q

diaphragm exhalation

A

relaxation causes it to move superiorly

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17
Q

external intercostals

A

extend downward and anteriorly from rib to rib, pulls ribcage up and downward during inspiration (11 prs)

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18
Q

internal intercostals

A

extends upward and anteriorly from rib to rib, pulls ribcage up and outward during inspiration (11 prs)

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19
Q

pectoralis minor

A

connects ribs 3-5

20
Q

pectoralis major

A

connects ribs 1-9; Origin: medial half of clavicle, costal cartilage, external oblique; insertion intertubercular sulcus of humerus; flexes, adducts, and rotates the humerus.

21
Q

latissimus dorsi

A

Origin: vertebrae T7-L5, iliac crest; insertion intertubercular sulcus of humerus; adducts, extends, and rotates humerus

22
Q

deltoid

A

Origin: acromion, the spine of the scapula, clavicle; insertion: deltoid tuberosity of humerus; abducts, flexes, and extends the arm

23
Q

coracobrachialis

A

Origin: coracoid process of scapula; assists in flexion of the arm

24
Q

teres major

A

assists in extension of arm

25
Q

Biceps Brachii

A

Origin: glenoid cavity and coracoid process; insertion: radial tuberosity; flexion of arm and forearm

26
Q

brachialis

A

inserts on ulna

27
Q

triceps brachii

A

Origin: glenoid cavity and humerus; insertion olecranon; extends the elbow.

28
Q

brachioradialis

A

Insertion: lateral surface of radius; flexion of the elbow

29
Q

pronator teres

A

Origin: medial epicondyle of the humerus and coronoid process of ulna; insertion: radius; pronates forearm

30
Q

supinator muscle

A

Origin: lateral epicondyle of humerus; insertion: radius; supinates arm

31
Q

flexor carpi radialis

A

Origin: medial epicondyle of humerus; insertion: metacarpals 2-3; flexes wrist.

32
Q

flexor carpi ulnaris

A

Origin: medial epicondyle of humerus; insertion: pisiform, hamate, metacarpal V; flexes wrist.

33
Q

flexor digitorum superficialis

A

Origin: medial epicondyle of humerus, olecranon; insertion: middle phalanges 2-5; flexes wrist and phalanges

34
Q

extensor carpi radialis longus

A

Origin: lateral supracondylar ridge of humerus; insertion: metacarpal 2; extends wrist

35
Q

extensor digitorum

A

Origin: lateral epicondyle of humerus; insertion: phalanges 2-5; extends wrists and phalanges

36
Q

gluteus maximus

A

Origin: ilium, iliac crest, coccyx, sacrum; insertion: femur, lateral condyle of tibia; extends and abducts thigh

37
Q

tensor fasciae latae

A

Origin: iliac crest; insertion: lateral condyle of tibia, extends knee, rotates tibia and femur

38
Q

adductor longus

A

origin: body/inferior ramus of pubis; insertion: linea aspera; adducts, rotates, flexes thigh

39
Q

gracilis

A

origin: body/inferior ramus of pubis; insertion: tibia; flexes and rotates tibia

40
Q

rectus femoris

A

origin: anterior inferior iliac spine; insertion: patella, tibial tuberosity, lateral and medial condyles of tibia; extends knee, flexes thigh

41
Q

vastus lateralis, vastus medialis, vastus intermedius

A

extends knee

42
Q

semimembranosus

A

origin: ischial tuberosity; insertion: medial condyle of tibia; flexes knee and extends hip

43
Q

biceps femoris

A

origin: ischial tuberosity/linea aspera; insertion: head of fibula; flexes knee and extends hip

44
Q

extensor digitorum longus

A

extends toes, dorsiflexes foot

45
Q

flexor digitorum longus

A

flexes toes

46
Q

gastrocnemius

A

origin: condyles of femur; insertion calcaneus; plantar flexes foot, flexes knee

BIO 241 A&P Spring 2022 SCC (3 decks)

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