Anatomy Upper Limb

Front 1

The clavicle connects the upper limb to the

Back 1

Trunk

Front 2

The sternal end of the clavicle articulates with the

Back 2

manubrium of the sternum at the sternoclavicular (SC) joint

Front 3

The acromial end of the clavicle articulates with the

Back 3

acromion of the scapula at the acrominoclavicular (AC) joint.

Front 4

Which part of the clavicle is convex anteriorly

Back 4

The medial two-thrids of the shaft

Front 5

What part of the clavicle is flattened and concave anteriorly?

Back 5

The lateral third

Front 6

3 Functions of the clavical

Back 6

1.rigid support from which the clavicle and free limb are suspended: keeping the limb lateral to the thorax so the arm can have max movement. This position also helps ribs elevate for deep inspiration.

2. Forms one boundary of the cervico-axillary canal (between the neck and arm) for protection of nerves supplying the arm.

3. Transmits shocks (impacts) fromt eh upper limb to the axial skeleton.

Front 7

This bone is a triangular flat bone that lies on the posterolateral aspect of the thorax, overlying the 2nd through 7th ribs.

Back 7

The Scapula

Front 8

The convex posterior surface of the scapula is unevenly divided by the spine of the scapula and is divided into

Back 8

small supraspinous fossa and a much larger infraspinous fossa

Front 9

The concave costal surface of the scapula has a large

Back 9

subscapular fossa

Front 10

The 3 borders of the scapula

Back 10

medial, lateral, and superior borders

Front 11

The angles of the scapula

Back 11

superior, inferior and lateral angles.

Front 12

The medial border of the scapula is located on the

Back 12

axillary side

Front 13

The lateral border of the scapula is located on the

Back 13

vertebral side

Front 14

The glenoid cavity is located at the

Back 14

head of the scapula.

Front 15

The superior border of the scapula is marked near the junction of the medial two thirds and lateral third by the

Back 15

suprascapular notch

Front 16

The spine of the scapula continues laterally, expanding to for the ____________.

Back 16

acromion process

Front 17

The glenoid cavity articulates with the

Back 17

head of the humerus at the glenohumeral (shoulder) joint.

Front 18

This part of the scapula is a shallow, concave, oval fossa, which is directed anterolaterally and slightly superiorly and is considerably smaller than the head of the humerus for which it serves as a socket

Back 18

glenoid cavity

Front 19

The largest bone in the upper limb

Back 19

The humerus

Front 20

The humerus articulates with the

Back 20

scapula at the glenohumeral joint and the radius and ulna at the elbow joint.

Front 21

This separates the lesser tubercles from the greater tubercles of the humerus.

Back 21

The intertubercular sulcus (bicipital groove).

Front 22

The anatomical neck of the humerus

Back 22

seperates the head from the tubercles

Front 23

Surgical neck of the humerus

Back 23

Where the humerus gets sustains injury most often.

Front 24

The shaft of the humerus has two prominent features:

Back 24

1. deltoid tuberosity: laterally

2. radial groove: postesteriorly for the radial nerve and profunda brachii artery.

Front 25

The two articular surfaces of the condyle of the humerus:

Back 25

1.lateral capitulum (L. little Head) for articulation with the head of the radius

2. medial trochlea (L. pulley) for articulation with the trochlear notch of the ulna.

Front 26

The __________, is superior to the trochlea of the humerous and it receives the coronoid process of the ulna during full flexion of the arm.

Back 26

Coronoid fossa

Front 27

The_______________ of the humerus accommodates the olecranon of the ulna during extension of the elbow.

Back 27

olecranon fossa

Front 28

The low________ (of the humerus) accommodates the edge of the head of the radius when the elbow is fully flexed.

Back 28

radial fossa

Front 29

The stabilizing bone of the forearm

Back 29

ulna

Front 30

Of the two forearm bones, which is more medial and longer?

Back 30

ulna

Front 31

The two prominent projections of the ulna

Back 31

1. coronoid process

2. the olecranon

Front 32

The olecranon and coronoid processes of the ulna from the

Back 32

trochlear notch

Front 33

The trochlear notch of the ulna articulates with the

Back 33

trochlea of the humerus

Front 34

the radial notch of the ulna articulates with the

Back 34

head of the radius

Front 35

Which of the two forearm bones do not articulate directly with the

Back 35

carpal bones

Front 36

Which of the 2 forearm bones is lateral and shorter?

Back 36

The radius

Front 37

The wrist or carpus has how many carpal bones?

Back 37

eight

Front 38

The carpal bones are arranged in

Back 38

proximal and distal rows of four

Front 39

The function of the carpal bones

Back 39

give flexibility to the wrist.

Front 40

The proxiaml four carpal bones

Back 40

Scaphoid, Lunate, Triquetrum, and Pisiform

Front 41

The four bones of the distal row

Back 41

Trapezium, Trapezoid, Capitate, and Hamate

Front 42

These for the skeleton of the palm

Back 42

metacarpus

Front 43

There are how many metacarpal bones

Back 43

five

Front 44

The metacarpals consist of?

Back 44

base, shaft, and head

Front 45

What articulates with the proximal bases of the metacarpals?

Back 45

The carpal bones

Front 46

What articulates with the distal heads of the metacarpals?

Back 46

The proximal phalanges of the knuckles

Front 47

What is the thickest and shortest metacarpal?

Back 47

The 1st, which is the metacarpal of the thumb.

Front 48

Each digit has 3 phalanges, what are they?

Back 48

proximal, middle, and distal (except for the thumb, it only has 2)

Front 49

Each phalanx has 3 parts

Back 49

base (prox), shaft, and a head (distal)

Front 50

The weakest part of the clavicle?

Back 50

The junction of the middle and lateral 3rds

Front 51

What elevates the medial fragment of the clavicle once it is fractured?

Back 51

the sternocleidomastoid (SCM)

Front 52

What makes the shoulder drop when the clavicle is fractured?

Back 52

The trapezius muscle is unable to hold up the lateral fragment due to the weight of the upper limb, and the shoulder drops. The lateral fragment becomes depressed and can be pulled medially by the pectoralis major.

Front 53

When the surgical neck of the humerus is fractured what nerve may be injured?

Back 53

The axillary

Front 54

When the radial groove of the humerus is fractured, what part of the nerve may be injured?

Back 54

The radial nerve

Front 55

What nerve may be injured when the distal humerus of the humerus is fractured?

Back 55

The median nerve

Front 56

What nerve may be injured when the medial epicondyle is fractured?

Back 56

The ulnar nerve.

Front 57

p. 409

Back 57

start notecards on this page

Front 58

Pectoralis Major Proximal attachment

Back 58

1. Clavicular head: anterior surface of medial half of clavicle

2. Sternocostal head: anterior surface of sternum, superior six costal cartilages, aponerurosis of external oblique muscles.

Front 59

Pectoralis Major Distal Attachment

Back 59

Lateral lip of intertubercular sulcus of humerus

Front 60

Innervation of the pectoralis major

Back 60

Lateral and medial pectoral nerves,

Front 61

Action of the pectoralis major

Back 61

adducts and medially rotates shoulder joint, draws scapula anteriorly and inferiorly.

Front 62

Proximal Attachment of the Pectoralis minor

Back 62

3rd-5th ribs near their costal cartilages

Front 63

Distal attachment of the pectoralis minor

Back 63

medial border and superior surface of coracoid process of scapula

Front 64

Innervation of the pectoralis minor

Back 64

Medial pectoral nerve

Front 65

Action of the pectoralis minor

Back 65

stabilizes scapula by drawing inferiorly and anteriorly against thoracic wall

Front 66

Proximal attachment of the subclavius

Back 66

Junction of the 1st rib and its costal cartilage

Front 67

Distal attachment of the subclavius

Back 67

inferior surface of middle third clavicle

Front 68

The subclavius is innervated by

Back 68

subclavian nerve (C5, C6)

Front 69

What is the function of the subclavius muscle?

Back 69

Anchors and depresses the clavicle

Front 70

The serratus anterior's proximal attachment

Back 70

External surfaces of lateral parts of 1st-8th ribs

Front 71

The serratus anterior distal attachment

Back 71

Anterior surface of medial border of scapula

Front 72

Function of the serratus anterior

Back 72

Protracts scapula and holds against thoracic wall.

Rotates scapula