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Bio 230 > Ch 10 Skeletal Muscle System > Flashcards

Ch 10 Skeletal Muscle System Flashcards

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Biology 101 flashcards
1
Q

Axial muscles

A

Support and position axial skeleton

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2
Q

Appendicular Muscles

A

Support and move the limbs

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3
Q

Tendons

A

Attaches muscles to bone

Dense regular collagen connective tissue

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4
Q

Origin

A

Immobile site muscle does not move

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5
Q

Insertion

A

Mobile moves the muscle

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6
Q

Agonist (or Prime Mover) Muscle

A

Muscle whose contraction is responsible for producing a particular movement

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7
Q

Antagonist Muscle

A

Muscle that opposes agonist

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8
Q

Temporalis muscle (o: Temporal bone; i: Mandible bone)

A

Chewing muscle

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9
Q

Eye Muscles

A

6 muscles move each eye

2 Oblique, 4 Rectus Muscles

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10
Q

Superior Rectus

A

moves eye to look superiorly

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11
Q

Inferior Rectus

A

moves eye to look inferiorly

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12
Q

Lateral Rectus

A

moves eye to look laterally

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13
Q

Medial Rectus

A

moves eye to look medially

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14
Q

Superior Oblique

A

rolls eye to look inferiorly and laterally

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15
Q

Inferior Oblique

A

rolls eye to look superiorly and laterally

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16
Q

Muscles of Thorax

A

Intercostal m and Diaphragm m – for respiration.

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17
Q

Muscles of the abdominal wall

A

Rectus abdominis m - flexes vertebral column.

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18
Q

Postural Muscles of the back

A

Erector spinae m – extends the vertebral column. Includes:
Iliocostalis (Lateral) m
Longissimus (Middle) m
Spinalis (Medial) m

19
Q

Diaphragm

A

Separates abdomen from thorax region

20
Q

Intercostal Muscles

A

Intercostal muscles are between ribs
o: rib above
i: rib directly below

21
Q

Rectus Abdominis

A

abs

22
Q

Erector Spina Muscle Group

A

Iliocostalis (Lateral) m
Longissimus (Middle) m
Spinalis (Medial) m

23
Q

lliocostalis

A

Lateral M

24
Q

Longissimus

A

Middle M

25
Q

Spinalis

A

Medial M

26
Q

Arm Muscles

A

i: Humerus bone (these muscles move the arm)
Deltoid m (o:clavicle & scapula): It abducts arm
Pectoralis major m (o:clavicle & sternum): It flexes the arm

27
Q

Deltoid

A

Deltoid m (o:clavicle & scapula): It abducts arm

28
Q

Pectoral’s Major

A

Pectoralis major m (o:clavicle & sternum): It flexes the arm

29
Q

Forearm

A

O: scapula; i: humerus, radius & ulna bones
Biceps brachii muscle: Flexes the forearm
Triceps brachii muscle: Extends the forearm

30
Q

biceps brachii muscle

A

Biceps brachii muscle: Flexes the forearm

31
Q

Triceps brachii muscle

A

Triceps brachii muscle: Extends the forearm

32
Q

Wrist and hand

A

O:bones of forearm; i: carpal & metacarpal
Flexor muscles – located anteriorly
Extensor muscles – located posteriorly

33
Q

Flexor muscles

A

Flexor muscles – located anteriorly

34
Q

Extensor muscles

A

Extensor muscles – located posteriorly

35
Q

lliopsoas

A

Iliopsoas muscle: o: vertebral & coxal bone; function - prime flexor of the thigh.

36
Q

Gluteus maximus

A

Gluteus maximus: o: coxal bone; function - prime extensor of thigh.

37
Q

Ankle and Foot muscles

A
38
Q

Anterior Tibialis Muscle

A

Anterior Tibialis muscle – located anteriorly; o:Tibia bone; i:tarsal and metatarsal bones. It dorsiflexes foot

39
Q

Gastrocnemius muscle

A

Gastrocnemius muscle – located posteriorly; o:femur; i: tarsal bone. It plantarflexes foot

40
Q

Orbicularis Oculi Muscle

A

Orbicularis oculi – closes eye tightly

41
Q

Orbicularis Oris Muscle

A

Orbicularis oris – purse lips

42
Q

Zygomaticus Makor/Minor muscle

A

Zygomaticus muscle – retracts & elevate corner of mouth

43
Q

Temporalis Muscle

A

Temporalis muscle (o: Temporal bone; i: Mandible bone)

44
Q

Sternocleidomastoid muscle

A

Sternocleidomastoid muscle (o:sternum & clavicle bones; i:Mastoid process)

Bio 230 (8 decks)

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