Pectoral and Shoulder Regions

Question 1

what activity do human upper limb have

Answer 1

prehensile not locomotor or postural

Question 2

shoulder girdle movement is when

Answer 2

when the shoulder is abducted more then 90 degress

Question 3

where does hte glenoid fossa face when the shoulder is abducted more then 90 degrees

Answer 3

superiorly

Question 4

what are the 4 things that are ventral elements of the shoulder

Answer 4

• clavicle
• coracoid process
• anterior soft tissues of arm
• upper 1/3 of glenoid fossa

Question 5

what kind of elements are the ribs and sternum

Answer 5

ventral

Question 6

muscles are ventral muscles if they attach to?

Answer 6

ventral elements

• clavicle
• coraocid process
• upper 1/3 glen foss
• anterior comp. of arm

Question 7

what are the 4 dorsal compartments

Answer 7

• spine of scap & acromian
• blade of scap
• vertebral column
• posterior comp. of arm

Question 8

wat are the 8 muscles of the pectoral girdle

Answer 8

1. trapeziues
2. levator scapulae
3. serratus anterior
4. rhomboids
5. pec major
6. pec minor
7. latissimus dorsi
8. subclavius

Question 9

what innervates trapezius

Answer 9

accessory n.

Question 10

what innervates serratus anterior

Answer 10

long thoracic n.

Question 11

what innervates levator scapulae

Answer 11

dorsal scapular n.

Question 12

what innervates rhomboids

Answer 12

dorsal scapular n.

Question 13

what innervates pec major

Answer 13

lateral and medial pectoral n

Question 14

what innervates pec minor

Answer 14

medial pectoral n

Question 15

what innervates latissimus dorsi

Answer 15

thoracodorsal n

Question 16

what innervates subclavius

Answer 16

n. to subclavius (C5-C6)

Question 17

what are the scapulohumeral muscles (6)

Answer 17

• deltoid
• teres major
• teres minor
• supraspinatus
• infraspinatus
• subscapularis

Question 18

what innercates deltoid

Answer 18

axillary n.

Question 19

what innervates teres major

Answer 19

lower subscapular n.

Question 20

what innervates teres minor

Answer 20

axillary n.

Question 21

what innervates supraspinatus

Answer 21

suprascapular n

Question 22

what innervates infraspinatus

Answer 22

suprascapular n

Question 23

what innervates subscapularis

Answer 23

upper and lower subscapular n

Question 24

muscles anterior to shoulder joint are

Answer 24

flexors (pec major and delt)

Question 25

muscles posterior to shoulder joint are?

Answer 25

extensors (post. delt, teres major, latissmus dorsi)

Question 26

muscles that are superior to the shoulder are?

Answer 26

abducters (middle delt, supraspinatus)

Question 27

muscles inferior to the shoulder joint are

Answer 27

adducters (pec major, latissmus dorsi, teres major)

Question 28

muscles that approach the long axis of the humerus at an angle

Answer 28

rotators - teres major - latissmus dorsi - pec major - subscapularis

Question 29

what is important about the dorsal scapular artery

Answer 29

it sometimes comes directly off of the subclavian artery and has nothing to do with the transverse cervical arteru

Question 30

what goes over the suprascapular ligament and what goes under

Answer 30

suprascapular artery suprascapular nerve

Question 31

what passes through the triangular space

Answer 31

circumflex scapular a.

Question 32

what passes through the quadratus space

Answer 32

posterior circumflex humeral a. and axillary nerve

Question 33

due to the arteries that wrap around the shoulder (posterior circumflex humeral, anterior circumflex humeral, and deltoid artery, what is achieved

Answer 33

blood flow to the arm incase the major blood pathway is ligated or blocked (axillary artery)

Question 34

where do clavicular fractures usually happen

Answer 34

middle 1/3 of the bone

Question 35

shoulder separation is also known as?

Answer 35

acromioclavicular joint seperation

Question 36

what disrupts the coraco-clavicular ligament and leads to the elevation of the upper subluxatoni of the trapezoid

Answer 36

severe trauma

Question 37

what kind of injury causes the separation of acromio-clavicular

Answer 37

minor injury

Question 38

shoulder dislocation occurs were

Answer 38

glenohumeral joint

Question 39

what shoulder dislocation is common

Answer 39

anterior

Question 40

what two nerves can be damaged if there is a glenohumeral joint

Answer 40

axillary n & radial nerve

Question 41

what is posterior dislocation associated with

Answer 41

epileptic seizure caused by electrocution

Question 42

what is usually involved in rotator cuff disorders

Answer 42

supraspinatus

Question 43

what can impinge the supraspinatus

Answer 43

- muscle swelling - excess fluid of subacromial bursa - subacromial bony spurs growing

Question 44

what are the three things that cause tendinopathy?

Answer 44

- repeated trauma - tendon degenerates and can tear - painful arm movemwent

Question 45

when there is an elevation of medial border of scapula off posterior thoracic wall what is it called

Answer 45

scapular winging

Question 46

when there is medial or lateral displacement of the scapula along the posterior thoracic wall its called

Answer 46

scapular winging

Question 47

lateral winging

Answer 47

when the superior border of the scapula will not move medially because the trapezius is paralyzed so it moves laterally