Organization of the Upper Limb

Question 1

what allows flexibility of the upper limb?

Answer 1

single osseous articulation of scapula to thorax via the clavicle

Question 2

what has burden of stability of upper limb?

Answer 2

sterno-clavicular joint and integrity of muscles that attach the scapula to the thorax

Question 3

type of joint at shoulder?

Answer 3

ball and socket

Question 4

shoulder joint allows what?

Answer 4

reaching above head or swinging while supporting the body

pulling objects toward the body or pushing away in ALL PLANES**

Question 5

type of joint at elbow?

Answer 5

hinge joint

-allows us to bring objects closer to the trunk and face

Question 6

type of joint at radius and ulna?

Answer 6

pivot

-allows pronation and supination

Question 7

what allows for greater flexibility during grasping, pushing off, and support?

Answer 7

bones of wrist and hand

Question 8

what allows for precision of manipulating objects?

Answer 8

finger joints

Question 9

superficial fascial layers?

Answer 9

camper - superficial

scarpa - deep

Question 10

segments of upper limb?

Answer 10

shoulder, arm, forearm, hand

Question 11

what is made of deep fascia?

Answer 11

intermuscular septae
interosseous membrane
palmar carpal ligament
flexor/extensor retinaculum
palmar aponeurosis

Question 12

one major artery to limb?

Answer 12

subclavian

Question 13

artery travel in upper limb?

Answer 13

surrounded by deep fascia
along bones

for protection

Question 14

deep veins?

Answer 14

named for the arteries they travel with

Question 15

distal veins?

Answer 15

usually doubled, located lateral and medial to artery with which they travel

Question 16

superficial veins

Answer 16

basilic and cephalic
median cubital

join deep veins as they course centrally

veins in limbs have valves***

Question 17

two sets of lymphatics in upper limb?

Answer 17

superficial - in skin

deep - drains muscles and joints paralleling arteries

Question 18

drainage of lymphatics?

Answer 18

meet at nodes located in axilla

Question 19

lymph flow**

Answer 19

subclavian duct (parallel subclavian a.) leaves axillary lymph nodes to join thoracic duct

thoracic duct joins jugulovenous angle (junction of internal jugular vein with subclavian vein

returns lymph to venous circulation

Question 20

sensory innervation distribution?

Answer 20

distributed radially

Question 21

motor innervation distribution?

Answer 21

distributed longitudinally

Question 22

right side lymphatic duct?

Answer 22

right lymphatic duct

Question 23

left side lymphatic duct?

Answer 23

thoracic duct