Structure and Functional Organization of the Upper Extremity MSK system

Question 1

What are the regions of the vertebral column?

Answer 1

cervical
thoracic
lumbar
coccyx

Question 2

number of vertebrae in each region of the vertebral column

Answer 2

Cervical-7
Thoracic-12
Lumbar-5
Coccyx-4

Question 3

Which vertebrae are lordotic?

Answer 3

cervical and lumbar

Question 4

Which vertebrae are Kyphotic?

Answer 4

Thoracic and sacral

Question 5

which vertebrae have facets for rib articulation?

Answer 5

Thoracic

Question 6

What are the largest and strongest vertebrae?

Answer 6

the lumbar

Question 7

What is the foundation for the pelvic girdle and contains foramina for nerves and blood vessels?

Answer 7

Sacrum

Question 8

what has four vertebrae fused into one?

Answer 8

coccyx

Question 9

What are the bones of the thorax?

Answer 9

Sternum
a. Manubrium
b. Body
c. Xyphoid process

Question 10

Which ribs are true ribs?

Answer 10

R1-R7 are true ribs

Question 11

Which ribs are false ribs?

Answer 11

R8-R10 are false ribs

Question 12

Which ribs are floating ribs?

Answer 12

R11-R12 are floating ribs

Question 13

Bones of the pectoral/shoulder girdle

Answer 13

Clavicle, Scapula

Question 14

What is the “strut” between the scapula and sternum, articulates with the acromion laterally, and the sternum medially?

Answer 14

clavicle

Question 15

What are the parts of the scapula?

Answer 15

Spine, body (vertebral border, axillary border), acromion (extends over humeral head), and the coracoid (attachment site)

Question 16

What are the ligaments of the shoulder/pectoral girdle?

Answer 16

acromioclavicular ligament
coracoclavicular ligament
coracoacromial ligament

Question 17

What is the ring called that deepens the glenoid cavity and provides stability?

Answer 17

labrum

Question 18

What percentage of the humeral head makes contact with the glenoid cavity?

Answer 18

25%

Question 19

What are the SITS muscles?

Answer 19

Supraspinatus, infraspinatus, teres minor, subscapularis

Question 20

What is the action of the supraspinatus?

Answer 20

assists deltoid in abduction of the humerous at the shoulder

Question 21

what is the action of the infraspinatus?

Answer 21

external rotation of the shoulder joint

Question 22

What is the action of the teres minor

Answer 22

extends arm at shoulder, rotation externally

Question 23

What is the action of the subscapularis?

Answer 23

internal rotation of the arm at the shoulder

Question 24

What are the bones of the elbow?

Answer 24

Humerus
Radius
Ulna

Question 25

What is the action of the biceps brachii?

Answer 25

flexes arm at shoulder flexes and supinates forearm at elbow

Question 26

What is the action of the brachialis?

Answer 26

flexes forearm at the elbow

Question 27

what is the action of the brachioradialis?

Answer 27

flexes forearm at the elbow joint

Question 28

what is the action of the triceps brachii

Answer 28

extends forearm at the elbow joint extends arm at the shoulder

Question 29

What is the action of the supinator?

Answer 29

supinates forearm

Question 30

what is the action of the pronator teres

Answer 30

pronates forearm