1st Midterm Fall 2017 Semester

Question 1

Trapezius Upper

Answer 1

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

Question 2

Middle Trapezius

Answer 2

O: SP T1-T6

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

N: spinal accessory nerve

A: retract scapula

Question 3

Inferior Trapezius

Answer 3

O: SP T7-T12

I: triangular area medial to base of spine of scapula

N: Spinal Accessory

A: Depression of scapula

Question 4

Latissimus Dorsi

Answer 4

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

Question 5

Rhomboid Major

Answer 5

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

Question 6

Rhomboid Minor

Answer 6

O: C7-T1

I: At root of spine

N: scapular dorsal

A: retraction and assist with downward rotation & upward slide

Question 7

Levator Scapula

Answer 7

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

Question 8

Serratus Posterior Superior (SPS)

Answer 8

O: SP C7-T3

I: superior border ribs 2-5

A: elevation of rib cage

Question 9

Serratus Posterior Inferior (SCI)

Answer 9

O: SP T11-L2

I: inferior border of ribs 9-12

A: depression of ribs

Question 10

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

Answer 10

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

Fibers run vertically

Question 11

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

Answer 11

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

Fibers run horizontally
Wraps around to the back of body

Question 12

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

Answer 12

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

Fibers run opposite of external obliques

Question 13

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

Answer 13

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

Question 14

Abdominal Muscle Arrangement

Answer 14

Superficial to Deep

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

Question 15

SubOcciptal Muscles

Answer 15

4 pairs

Superior to Inferior

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

Question 16

Splenius Muscles

Answer 16

2 groups: (Capitus & Cervicis)

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

Question 17

Deep Back Muscles
Erector Spinae
Name 3 groups

Answer 17

Deep To Splenius Muscles
Lateral> Medial

Iliiocostalis > longissimus > spinalis muscle groups

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

Question 18

Illiocostalis Muscle Group

Answer 18

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

Question 19

Deep Muscles

Longissimus

Answer 19

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)

Question 20

Deep Muscles

Spinalis

Answer 20

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

Question 21

Arm Muscles

Answer 21

Anterior: Biceps brachii , brachialis and coracobrachialis)

Posterior: Tricep brachii

Question 22

Biceps Brachii

Answer 22

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

Question 23

Brachialis

Answer 23

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

Question 24

Coracobrachialis

Answer 24

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

Question 25

Triceps Brachii

Answer 25

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

Question 26

Thoracic Wall Muscles

Answer 26

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

Question 27

Pec Major

Answer 27

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

Question 28

Pec minor

Answer 28

O: ribs 3-5 I: coracoid process N: med & lat nerve A: scapular depression, assists w/ protraction

Question 29

Serratus Anterior

Answer 29

O: ribs 1-8 I: anterior scapula along med border N: long thoracic nerve A: scap up rot, lat slide, prevents scrap winging

Question 30

Semispinalis muscles Do we need to know by pic or on cadaver?

Answer 30

Capitus Cervicis Thoracis

Question 30

Semispinalis Capitus

Answer 30

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

Question 31

Semispinalis Cervicis

Answer 31

O: TP T1-T5 (TPT1-5) I: SP C2-5(SPC2-5) A: unilat: C/L rot of neck Bilat: ext of spine

Question 32

Semispinalis thoracis

Answer 32

O: TP of T6-10 (TPT6-10) I: SP C6-T4(TPCT6-4) A: unilat: C/L rot of spine Bilat: ext of spine

Question 33

Multifidus, long and short rotators * know by picture only

Answer 33

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

Question 34

Shoulder Girdle Muscle

Answer 34

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

Question 35

Deltoid

Answer 35

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

Question 36

Supraspinatus Infraspinatus

Answer 36

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

Question 37

Teres Minor

Answer 37

O: scapula along superior 2/3 of later border I: Inferior facet of greater tubercle N: Axillary A: ext rotation of humerus, stabilizes GHJ

Question 38

Teres Major

Answer 38

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

Question 39

Subscapularis

Answer 39

O: medial 2/3 subscapularis fossa I: lesser tubercle N: upper and lower subscapular A: medial rotation