Appendicular skeleton Pectoral girdle and upper limbs

Question 1

What does the appendicular skeleton consist of

Answer 1

pectoral girdle, upper extremities, pelvic girdle and lower extremities

Question 2

purpose of pectoral girdle

Answer 2

provides attachment of the arms and many of the arms associated muscles. It is a delicate structure

Question 3

keep the scapulae and shoulders laterally

Answer 3

delicate clavicles

Question 4

Congenital absence of clavicles

Answer 4

you have no clavicles so you can bring shoulders almost into contact with eachother

Question 5

allows for ligaments to attach on clavicles

Answer 5

conoid tubercle

Question 6

Acromioclavicular joint (A-C joint)

Answer 6

connects acromion of scapula and lateral end of clavicle

Question 7

Sternoclavicular joint

Answer 7

connects sternum and medial end of clavicle

Question 8

lays over ribs 2-7 on the posterior aspect of the rib cage

Answer 8

scapula

Question 9

The head of the humerus articulates here

Answer 9

glenoid cavity (shallow socket allows for a lot of movement but really bad stability)

Question 10

anterior surface of the scapula

Answer 10

subscapular fossa

Question 11

intertubercular groove of the humerous

Answer 11

one of the biceps runs through it

Question 12

interacts with the head of the radius

Answer 12

capitulum

Question 13

creates joint with the ulna

Answer 13

throchlea

Question 14

is the funny bone a bone

Answer 14

no it is the ulnar nerve

Question 15

radial fossa

Answer 15

accommodates the head of the radius

Question 16

coronoid fossa of the humerus

Answer 16

receives the coronoid process of the ulna when the elbow is flexed

Question 17

olecranon fossa

Answer 17

receives the olecranon of the ulna when the elbow is extended

Question 18

medial bone of the antebrachium

Answer 18

ulna

Question 19

lateral bone of the antebrachium

Answer 19

radius

Question 20

where does the radius sit in the ulna

Answer 20

radial notch of the ulna

Question 21

creates a U-shaped arrangement to help stabilize the bones of the wrist

Answer 21

styloid processes of on the distal radius and ulna

Question 22

ulnar notch

Answer 22

located at the distal end of the radius, articulates with the ulna

Question 23

this helps keep the radius and ulna a fixed distance from one another and also allows rotation of the forearm

Answer 23

interosseous membrane

Question 24

how many carpal bones are there

Answer 24

8

Question 25

what to worry about when you fracture your clavicle

Answer 25

damaging underlying arteries and veins. immobilize as soon as possible

Question 26

fracture in the scapula

Answer 26

can result in fracture of the underlying ribs

Question 27

what can happen if you have a scapular fracture through the genoid cavity

Answer 27

you can develop arthritis because the head of the humerus is articulating weird with the cavity

Question 28

Blow or falls on the tip of the shoulder

Answer 28

dislocation of the acromion process of the scapula from the clavicle (A/C separation)
this is usually considered a shoulder separation

Question 29

is it good to compare both sides of the body when examining a shoulder

Answer 29

yes

Question 30

Anterior dislocation of the shoulder

Answer 30

humerus comes out anteriorly and sits in front of the glenoid cavity

Question 31

Posterior dislocation of the shoulder

Answer 31

humerus comes out posteriorly and sits behind the glenoid cavity. Can be noticed by looking from the side

Question 32

what does a wrist dropping mean when someone breaks their humerus

Answer 32

radial nerve has been cut or damaged

Question 33

Supracondylar fracture of the humerus

Answer 33

fracture at the distal part of the humerus around the condyles

you lose a lot of motion in joints and you will need a lot of physical therapy

Question 34

dislocation of the elbow

Answer 34

olecranon moves posterior away from the humerus

Question 35

lateral epicondylitis (tennis elbow)

Answer 35

lateral epicondyle of the humerus is put under tremendous stress during a backhand stroke. Can occur when gripping things a lot

Question 36

radial ulnar fracture

Answer 36

fracture in the radius and the ulna

Question 37

Colles fracture

Answer 37

break in lower end of the radius with lower fragment displacement. Usually occurs with a FOOSH injury

silver fork deformity

Question 38

What does FOOSH stand for?

Answer 38

fall on out stretched hand