Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

A&P1 Test 5 Upper Limb > Bones of the upper limb > Flashcards

Bones of the upper limb Flashcards

1
Q

What is the fxn of the pectoral girdle and what bones compose it

A

Fxn: attach upper limbs to the axial skeleton Composed of: clavicle and scapula

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the fxn of the clavicle

A

to transmit mech force from the upper limb to the trunk

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

True or False the clavicle is one of the most frequently broken bones of the body

A

True

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What portion of the clavicle is typically the site of the fx

A

the junction of the curves

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are the 2 ends of the clavicle

A

the acromial extremity and the sternal extremity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Describe the conoid tubercle

A

site of attachment of the coracoclavicular ligament

coracoclavicular ligament attaches the
conoid process to the coracoid process of the clavicle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

How is the scapula held in place posteriorly

A

only by shoulder and back muscles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Describe the acromion

A

part of the scapula that is the most superior portion the scapula

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Describe the glenoid cavity

A

part of the scapula that accepts the head of the humerus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Name the 3 edges of the scapula and describe them

A
  1. Medial (vertebral) border= edge closer to the vertebral column
  2. Lateral (axial) border= edge closer to the arm
  3. Superior border= edge with the acromion process
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What is the area called where the medial and lateral border meet

A

the inferior angle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the area called where the medial and superior border of the scapula meet

A

the superior angle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the scapular notch and why is it important

A

It is indentation on the superior portion of the scapula

fxn: allow passage of the suprascapular nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What 3 muscles and 3 ligaments attach at the coracoid process of the scapula

A

Muscles: pectoralis minor, biceps brachii , coracobrachialis

Ligaments: coracoacromial, conoid, trapezoid

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are the 3 fossas of the scapula

A

Anterior surface: subscapular fossa

Posterior surface: supraspinous fossa, infraspinous fossa

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What separates the supraspinous fossa and the infraspinous process

A

the spine of the scapula

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Describe the superior transverse scapular ligament

A

Ligament that crosses over the scapular notch and transforms into foramen

  • the suprascapular nerve travels under the ligament
  • the suprascapular artery travels over the ligament

Mnemonic: a navy (nerve) travels under a bridge, an army (artery) travels over a bridge

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Describe suprascapular neuritis

A

What: entrapment of suprascapular nerve (often in the suprascapular notch)

How: from overuse of the arm and excessive traction

Signs/symptoms: C5/C6 dermatome pain that is reproducible with direct pressure over the notch

Can cause: wasting of the supraspinous and infraspinatus muscles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

Name the 3 articulations of the pectoral girdle

A
  1. sternoclavicular joint
  2. acromioclavicular joint
  3. glenohumeral joint
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

What articulation of the pectoral girdle is the only true synovial joint that connects the pectoral girdle to the ribcage

A

the sternoclavicular joint

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

What 2 ligaments stabilize the acromioclavicular joint

A
  1. The acromioclavicular ligament

2. The trapezoid +conoid ligament= coracoclavicular ligament

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

What joint is created by the humerus and the glenoid cavity

A

the glenohumeral joint

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

Name the 2 tubercles of the proximal humerus

A
  1. Greater tubercles

2. Lesser tubercles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

Describe the anatomical neck of the humerus

A

area located between head of the and the greater/lesser tubercles, it is the site of the articular capsule

25
Q

Describe the surgical neck of the humerus

A

narrowing of the humerus just distal to the greater and lesser tubercles.

It is were the humerus is frequently Fx

26
Q

Describe the intertubercular sulcus

A

groove between the greater and lesser tubercles , it contains the head of the biceps brachii muscle

27
Q

Describe the deltoid tuberosity

A

area in the middle of the humerus shaft were the deltoid inserts

28
Q

Describe the capitulum

A

the rounded lateral end of the humerus that articulates w/ radius

29
Q

Describe the lateral epicondyle of the humerus

A

the most lateral end of the distal portion of the humerus, where the lateral supracondylar ridge ends

30
Q

Describe the trochlea

A

the indented medial portion of the distal humerus that articulates w/ the ulna

31
Q

Describe the medial epicondyle of the humerus

A

the most medial end of the distal portion of the humerus, where the medial supracondylar ridge ends

32
Q

What are the depressions on the anterior side of the humerus, where exactly are they located and what are they there for.

A

The radial fossa= proximal (above) to the capitulum, it contains part of the radius during flexion

The coronoid fossa= proximal (above) to the trochlea, it contains the coronoid process of the ulnar

33
Q

What is the depression on the posterior side of the humerus and what is it there for

A

The olecranon fossa= it receives the olecranon process of the ulna when the forearm is extended

34
Q

Define impact fx

A

1 fragment of bone is driven into the spongy bone of another fragment

-tend to be stable, arm is passively moveable, limited pain

35
Q

Define transverse fx

A

fx that crosses the bone

  • caused by direct blow
  • if humerus is fracted the proximal fragment is pulled laterally
36
Q

Define avulsion fx

A

fx that occurs when a ligament or tendon attached to bone pulls away part of the bone

  • usually result from a fall
  • repaired by open reduction and screws
37
Q

A fx at the surgical neck of the humerus is associated with damage to what nerve

A

axillary nerve

38
Q

A fx at the shaft/radial groove of the humerus is associated with damage to what nerve

A

radial nerve

39
Q

A fx at the distal end of the humerus is associated with damage to what nerve

A

median nerve

40
Q

A fx at the medial epicondyle of the humerus is associated with damage to what nerve

A

ulnar nerve

41
Q

Name the 2 bones of the forearm and briefly describe them

A
  1. Ulna= pinky side, it is the stabilizing bone of the forearm.
  2. Radius= thumb side, it is the shorter movable bone
42
Q

What is the name of the proximal end of the ulna that forms the prominence of the elbow

A

olecranon

43
Q

What is the name of the area on the ulnar that receives the trochlea of the humerus

A

the trochlear notch

44
Q

What is the name of the area distal to the trochlear notch of the proximal end of the ulna

A

the olecranon

45
Q

What is the area of the ulna that receives the head of the radius

A

radial notch

46
Q

Describe the ulnar tuberosity

A

area just distal/inferior to the coronoid process were the brachialis muscle inserts

47
Q

Where is the head of the ulna

A

at the distal end closets to the wrist

48
Q

What part of the radius articulates with the capitulum

A

the head of the radius

49
Q

Where is the radial tuberosity and what attaches here

A

roughened area inferior distal to the neck of the radius where the biceps brachii attaches

50
Q

Describe the radial styloid process

A

on the lateral side of the radius, it is the insertion for the brachioradialis muscle and where the radial collateral ligament of the wrist attaches

51
Q

Describe the interosseous membrane

A

broad flat fibrous connection between the shafts of the radius and ulna where some deep muscles of the forearm originate

52
Q

How many radioulnar articulations are there

A

2= proximal and distal radioulnar joints

53
Q

Describe the distal tubercle of the radius

A

aka listers tubrcle

small prominence on the distal dorsal (palmer) aspect of the radius that the tendon of the extensor pollices uses as a pulley

54
Q

What are the 8 carpal bones and a Mnemonic for remembering them

A

Proximal medial then distal medial

Some= scaphoid
Lovers=lunate
Try=triquetrum
Positions= pea shaped

That=trapezium
They=trapezoid
Cannot=capitate
Handle=hamate

55
Q

True or false the ulnar participates in the wrist joint

A

False

56
Q

What proximal carpal bone does not articulate with the radius and what is its fxn

A

Pisiform acts as a sesamoid bone increasing the leverage of the flexor carpi ulnaris

57
Q

How many metacarpals are there on each hand

A

5

58
Q

Where does numbering of the metacarpals begin

A

1 is proximal to the thumb

59
Q

How many phalanges are there on each had

A

14 total

3 per finger
2 per thumb

A&P1 Test 5 Upper Limb (10 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions