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Anaphy > Muscular System > Flashcards

Muscular System Flashcards

1
Q

Point of attachment that does not move

A

Origin

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2
Q

Point of attachment that moves

A

Insertion

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3
Q

Principle muscle involved in an action

A

Prime mover

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4
Q

Assists prime mover in accomplishing a movement

A

Synergists

Ex. (Brachials and brachioradialis)

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5
Q

Stabilizes insertion points during movement

A

Fixators

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6
Q

Primarily responsible for an action

Also known as the prime mover

A

Agonist

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7
Q

Muscles that produces the opposite movement of the agonist

A

Antagonist

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8
Q

What are skeletal muscle names derived from

A

Greek and Latin root words

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9
Q

What are the easily observable characteristics of muscles

A

Shape
Size comparisons
Orientation of fibers
Number of origins
Action of muscle
Attachment location of
Grouping of muscle

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10
Q

Named for their resemblance of shape

A

Muscle shape

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11
Q

Muscles in a group are sometimes named for their size relative to other muscles in the group

A

Muscle size

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12
Q

Named for the region where they are located

A

Location

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13
Q

Orientation of the muscle fibers and fascicles is used to describe some muscles

A

Orientation of fibers

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14
Q

Number of origins a muscle has can differentiate can differentiate it from other nearby muscles

A

Number of origins

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15
Q

Named for the action the muscle achieves

A

Action

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16
Q

Attachment location can appear in a muscle name

-Origin is always first

A

Attachment

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17
Q

Some muscles exist in groups

A

Grouping

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18
Q

Scientific term for chewing

A

Mastification

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19
Q

What are the muscles that move the lower jaw?

A

Masseter
Temporalis
Pterygoid muscles

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20
Q

It is the Lateral muscle acting on the jaw
And mainly responsible for chewing

Responsible for elevation of the mandible

A

Masseter

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21
Q

It is the muscle just above the jaw and spanning over the lateral bones of the skull

Responsible for the retraction of the mandible

A

Temporalis

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22
Q

Deep facial muscle assisting in chewing

Prime mover
Side to side movement of the jaw opening and closing of the mouth

A

Medial Pterygoid/lateral pterygoid

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23
Q

This pterygoid’s insertion is the medial surface of the ramus and the angle of the mandible

A

Medial pterygoid

24
Q

This pterygoid’s insertion is the joint capsule of the temporomandibular joint and the condyloid process of the mandible

A

Lateral Pterygoid

25
Q

What are the muscles that move the head

A

Sternocleidomastoid
Scalenes

26
Q

A thick muscle that attaches the sternum, clavicle and the mastoid

Prime mover
Flexion of the head and neck

A

Sternocleidomastoid

27
Q

Muscles of the neck that assist the sternocleidomastoid

Flexion of the neck

A

Scalenes

28
Q

What are the muscles that move the humerus

A

Pectoralis major and latissimus dorsi

29
Q

Formed by tendons of subscapulares,
Supraspinatus, infraspinatus and teres minor

Gives structure and stability to the shoulder joint

A

Rotator cuff

30
Q

What are the thigh muscles that move the femur, tibia and fibula

A

Medial compartment
Anterior compartment
Posterior compartment

31
Q

Adducts the femur

A

Medial compartment

32
Q

What are theuscles in the medial compartment

A

Adductor Longus, adductor brevis, adductor magnus, pectineus and gracilis

33
Q

Flexes the thigh and extends the knee

A

Anterior compartment

34
Q

What are the muscles in the anterior compartment

A

Quadriceps femoris, rectus femoris, vastus lateralis,vastusmedialis,vastus intermedius

35
Q

Extends the thigh and flexes the knees

A

Posterior compartment

36
Q

What are the muscles in the posterior compartment

A

Hamstrings, semitendious, semimembranosus, biceps femoris

37
Q

An arrangement of fascicles in skeletal muscle

A

Fascicle arrangement

38
Q

Fascicles are arranged in same direction as long axis of muscle

A

Parallel

39
Q

Parallel formation with large muscle belly in the middle and narrowing ends

A

Fusiform

40
Q

Enlarge when muscles contract

A

Muscle bellies

41
Q

Fascicles blend into tendon in center of muscle

A

Pennate

42
Q

Prefixes that indicate number

A

Uni
Bi/di
Tri
Quad
Multi

43
Q

What are the muscles of facial expression

A

Orbicularis oculi
Orbicularis oris
Occipitofrontalis
Buccinator
Zygomaticus major
Zygomaticus minor

44
Q

Puckers the lips

A

Orbicularis Oris

45
Q

Opens and closes the eyes

A

Orbicularis oculi

46
Q

Moves the scalp and eyebrows

A

Occipitofrontalis

47
Q

Compresses the cheek

A

Buccinator

48
Q

Raising the corners of mouth

A

Zygomaticus major/minor

49
Q

What are the muscles of the thorax

A

Diaphram
Intercostal muscles
External, internal and inermost

50
Q

Depresses the central tendon to create more space in the thorax during inspiration

A

Diaphram

51
Q

Elevates ribs during inspiration

A

External intercostalis

52
Q

Depresses and draws ribs together during expiration

A

Internal intercostals

53
Q

Assists the internal intercostals during expiration

A

Innermost intercoastals

54
Q

What are the muscles that move the feet

A

Anterior compartment
Posterior compartment
Lateral compartment

55
Q

Dorsiflexes the feet

A

Anterior compartment

56
Q

Eversion and plantar flexion of the foot

A

Lateral compartment

57
Q

Plantar flexion of the foot

A

Posterior compartment

Anaphy (7 decks)

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