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Anatomy- Muscles > 1st Midterm Fall 2017 Semester > Flashcards

1st Midterm Fall 2017 Semester Flashcards

1
Q

Trapezius Upper

A

O: med 1/3 sup uncharted line, occipital bone, ligamentum nuchae line, SP C7

I: 1/3 lat border of post clavicle

N: spinal accessory nerve

A: elevate clavicle

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2
Q

Middle Trapezius

A

O: SP T1-T6

I: Medial border of acromion & sup lip of scapula spine

N: spinal accessory nerve

A: retract scapula

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3
Q

Inferior Trapezius

A

O: SP T7-T12

I: triangular area medial to base of spine of scapula

N: Spinal Accessory

A: Depression of scapula

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4
Q

Latissimus Dorsi

A

O: SP T7-T12, SP lumbar and sacrum, posterior iliac crest

I: floor of the bicipital groove,

N: thoracodorsal

A: addiction, external & medial rotation of humerus and depression of scapula

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5
Q

Rhomboid Major

A

O: SP T2-5

I:medial border if scapula between root of spine and inferior border

N: dorsalscapular

A:retraction and downward rotation & upward slide

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6
Q

Rhomboid Minor

A

O: C7-T1

I: At root of spine

N: scapular dorsal

A: retraction and assist with downward rotation & upward slide

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7
Q

Levator Scapula

A

O: TP C1-4 only TP origin of the superficial and intermediate muscles)

I:between the root of scapula spine and superior angle

A: upward slide, downward rotation of scapula, contralateral rot of head, ipsi side bend and bilateral next ext

N:dorsal scapular & branch of spinal nerve

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8
Q

Serratus Posterior Superior (SPS)

A

O: SP C7-T3

I: superior border ribs 2-5

A: elevation of rib cage

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9
Q

Serratus Posterior Inferior (SCI)

A

O: SP T11-L2

I: inferior border of ribs 9-12

A: depression of ribs

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10
Q

Rectus Abdominus (need to be able to identify by pic)

A

Action: flexion of lumbar spine w/ fixed pelvis, Posterior pelvic tilt w/fixed rib cage, expiration, intra-dominal pressure

Fibers run vertically

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11
Q

Transverse Abdominus (need to be able to identify by pic)

A

Stabilize lumbar spine and pelvis before movement of upper/lower limbs occur

Fibers run horizontally
Wraps around to the back of body

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12
Q

Internal obliques (need to be able to identify by pic)

A

Unilateral contraction: ipsilateral side flexion and rotation of trunk, associated with forced expiration

Fibers run opposite of external obliques

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13
Q

External obliques (need to be able to identify by pic)

A

Action:contraction there’s ipsilateral flexion of spine and contralateral trunk rotation

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14
Q

Abdominal Muscle Arrangement

A

Superficial to Deep

Rectus Abdominus»>Ext Obl»>internal obliq»>Transvers (REI-T)

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15
Q

SubOcciptal Muscles

A

4 pairs

Superior to Inferior

RCP-MINOR
RCP-Major
OC-Superior
OC-Inferior

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16
Q

Splenius Muscles

A

2 groups: (Capitus & Cervicis)

Unilateral: ipsilat rot & SB neck
Bilateral: ext of neck

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17
Q

Deep Back Muscles
Erector Spinae
Name 3 groups

A

Deep To Splenius Muscles
Lateral> Medial

Iliiocostalis > longissimus > spinalis muscle groups

SB & ext Spine > head and spine > ext of spine

18
Q

Illiocostalis Muscle Group

A

Cervicis
O: ribs 3-6, I: TP C4-C6

Thoracis
O: ribs 7-12, I: ribs 1-6

Lumborum
O: CEST, I: ribs 6 or 7-12

19
Q

Deep Muscles

Longissimus

A

Capitus (O: TP T1-T4,I: Mastoid)
*be able to identify by pic

Cervicis (O: TP T1-4, (I: TP C2-6)

Thoracis (O: lumbar region on CEST, I: TP T1-12 & ribs 3-12)

Action:
Uni (each one): rot head, SB head, SB head
Bilat (each one): ext head, ext spine,ext spine)

20
Q

Deep Muscles

Spinalis

A

Capitus: (O: blends w/ semispinalis, I: NONE)
Cervicis: (O: lower ligament nuchae & sp C7, I: SPC2)
Thoracis: (O: SP T11-L2, I: SP T1-T4)

Action (all): extension of

21
Q

Arm Muscles

A

Anterior: Biceps brachii , brachialis and coracobrachialis)

Posterior: Tricep brachii

22
Q

Biceps Brachii

A 
short head 
O: Corachoid process
 I: flat tendon radial tuberosity
A: flex elbow/humerus & supinator of forearm
N: Musculocutaneous

long head
O: Glenoid labrum & supraglenoid tubercle
I: flat tendon radial tuberosity
A: flex elbow/humerus & supinator of forearm
N: Musculocutaneous

23
Q

Brachialis

A

O:ant surface of humerus along distal 1/2,
I: coronoid of ulna
A: flex of elbow
N: musculocutaneous, radial

24
Q

Coracobrachialis

A

O: coracoid process
I: humerus midway along med border
N: musculocutaneous
A: flex of humerus, add of humerus

25
Q

Triceps Brachii

A

Long Head (O: scapula @ infraglenoid tubercle)

Lateral Head (O: narrow obliq area post surface humerus, sup spiral line & lat intermuscular septum)

Medial Head (O: large area post surface humerus, inf spiral line & med intermuscular septum)

I (all): common tendon to olecranon processof ulna (CTOPU)
N: radial
A (all): ext elbow; long Head-add humerus

26
Q

Thoracic Wall Muscles

A

Pec major
Pec minor
Serratus Anterior
Subclavius (know by pic)

27
Q

Pec Major

A

O: med clavicle, ant sternum & ribs 1-7

I: lateral lip bicipital groove

N: med & lat pectoral

A: OC: hum add & med rot, flex & ext arm
CC: draws trunk upward & forward

28
Q

Pec minor

A

O: ribs 3-5

I: coracoid process

N: med & lat nerve

A: scapular depression, assists w/ protraction

29
Q

Serratus Anterior

A

O: ribs 1-8

I: anterior scapula along med border

N: long thoracic nerve

A: scap up rot, lat slide, prevents scrap winging

30
Q

Semispinalis muscles

Do we need to know by pic or on cadaver?

A

Capitus

Cervicis

Thoracis

30
Q

Semispinalis Capitus

A

O: TP C7-T6 & Articular process C 4-6 (TPCT7-6 & art c4-6)

I: med area b/t sup & inf nuchal lines

A: unilat: minimal C/L rot of head
Bilat: ext of head

31
Q

Semispinalis Cervicis

A

O: TP T1-T5 (TPT1-5)

I: SP C2-5(SPC2-5)

A: unilat: C/L rot of neck
Bilat: ext of spine

32
Q

Semispinalis thoracis

A

O: TP of T6-10 (TPT6-10)

I: SP C6-T4(TPCT6-4)

A: unilat: C/L rot of spine
Bilat: ext of spine

33
Q

Multifidus, long and short rotators

  • know by picture only
A

Uni: C/L rot of spine
Bil: ext of spine

34
Q

Shoulder Girdle Muscle

A 
Deltoid
Rotator Cuff (SITS)
-supraspinatous 
-infraspinatous
-Teres minor
-subscapularis

Teres Major

35
Q

Deltoid

A

O: Anterior: lat 1/3 clavicle
Middle: lat acromion
Posterior: spine of scapula

I: deltoid tuberosity

N: axillary

A: Ant: flex & medial rotation of humerus
Middle: AB-duct
Post: ext & lateral rotation

36
Q

Supraspinatus

Infraspinatus

A

O: Supra- medial 2/3 supraspinatous fossa
Infra-medial 2/3 infraspinatous fossa

I: Supra-superior facet of greater tubercle
Infra- middle facet of greater tubercle

N: suprascapular nerve for both

A: both stabilize GHJ; Supra-ABD & prevents downward translation of humerus; infra-ext rot of humerus

37
Q

Teres Minor

A

O: scapula along superior 2/3 of later border

I: Inferior facet of greater tubercle

N: Axillary

A: ext rotation of humerus, stabilizes GHJ

38
Q

Teres Major

A

O: Inferior 1/3 of the lateral border of the infraspinatus fossa

I: medial border of bicipital groove

N: lower subscapular

A: ext and med rotation of humerus

39
Q

Subscapularis

A

O: medial 2/3 subscapularis fossa

I: lesser tubercle

N: upper and lower subscapular

A: medial rotation

Anatomy- Muscles (2 decks)

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