Unit One Bones Flashcards
Glenoid cavity articulates with
Humeral head
Shape of scapula
Triangular and flat
The triquetrum articulates with
The disc of the radioulnar joint
Manual laborers have what type of clavicles
More robust and curvaceous
What forms the trochlear notch on the ulna
Coronoid process and olecranon process
The rounded head of the radius articulates with what
Capitulum of humerus and radial notch of humerus
In a colle fracture, the fragments are driven
Posteriorly
Deltoid tubercle on scapula is where what attaches
Medial portion of trapezius muscle
What is found on the shaft of the humerus
Deltoid tuberosity and radial groove
Fracture of radial groove of humerus is associated with what nerve
Radial nerve
What epicondyle is used for flexor attachment
Medial epicondyle
What is smith fracture
Fracture of distal radius with ventral displacement of the fragment
The lateral angle of the scapula supports what
Scapular head which supports the glenoid fossa
The lateral spine of the scapula forms the
Acromion
Free upper limb bones are
Humerus, radius, ulna, carpals, metacarpals and phalanges
What do you find in the junction of the neck and shaft of the humerus
Greater and lesser tubercles
What on the humerus allows for the full extension
Olecranon fossa
What is the largest bone of the UE
Humerus
What bones articulate with the distal portion of the radius
Lunate and scaphoid
What are the angles of the scapula
Superior, lateral and inferior
Proximal fractures of the humerus occur where
Surgical neck
The sternoclavicular joint involves
Sternum, clavicle and first rib
Humerus articulates at
Glenohumeral joint (scapula) and elbow joint (radius and ulna)
What is found on Radial groove of humerus
Radial nerve and artery
Distal end of humerus fracture has what associated nerve
Median nerve
What is the deformity called of the colle fracture
Dinner fork
Scaphoid fracture most commonly associated from
A fall on an open palm and occurs across the waist of the bone
The posterior surface of the scapula is divided into
Infraspinous fossa and supraspinous fossa by spine
What muscle attached to the intertubercular groove of the humerus
Tendon of the long head of biceps
most common site for fracture of radius
Middle third ?????
What inserts on the radial tuberosity
Biceps brachii tendon
What bone connects the UE appendicular skeleton to axial skeleton
Clavicle
What is usually associated with colle fracture
Ulnar styloid avulsion fracture
What epicondyle on the humerus has extensor attachment
Lateral epicondyle
Function of the clavicle
To suspend the upper limb laterally from the body to allow freedom of motion
What forms the palm and dorsum of the hand
Metacarpals
What is the stabilizing bone of the forearm
Ulna
Medial epicondyle fracture of humerus has what associated nerve
Ulnar nerve
What causes chauffeurs fracture
Compression of the scaphoid bone of the hand against the styloid process of the distal radius
Distal extensions of the humeral tubercles forms what
Crests/ lips
What is the only joint holding the UE to the axial skeleton
Sternoclavicular joint
What is a chauffeurs fracture
Isolated fracture of the radial styloid process
The anatomical neck is separated from the head of humerus by what
Sucapital groove
The pectoral girdle contains what bones
Clavicle and scapula
Bones in the upper extremity are divided into what two groups
Pectoral girdle and free upper limb
How many metacarpals in one hand
5
If force hits hand first how does it travel
Hand, wrist, radius, interosseous membrane, ulna, elbow then humerus
Where is deltoid tubercle on scapula
Located on the spine
Where is the weakest part on the clavicle
Middle
Function of interosseous membrane between radius and ulna
Acts to transmit force from the hand to the humerus
The interosseous membrane between radius and ulna are what type of joint
Syndesmosis joint
What fossa is the on the anterior surface of the scapula
Subscapular fossa
Acromial (lateral) end of clavicle articulates with the acromion of the scapula where
Acromioclavicular joint
What is the most common fracture site of the humerus
Surgical neck
How does colle fracture occur
Forced dorsi flexion of hand
The ulnar tuberosity is the attachment for
Brachialis muscle
Where do you find sesamoid bones
In the hand
Which is larger radial styloid process or ulnar
Radial
Clavicles are thicker where due to what
Thicker on the side of their most dominant hand
The proximal end of the ulna articulates with what
Trochlea and head of radius
The sternal (medial) end of clavicle articulates with manubrium where
Sternoclavicular joint
The greater scapular notch is formed by
Lateral extension of the acromion
Chauffeur’ s fracture AKA
Hutchinson’s fracture
How many phalanges in one hand
14
Sesamoid bones are formed in
Tendons
The trochlea of the humerus articulates with what bone
Ulna
What is colle’s fracture
Transverse fracture of distal radius
What ligament holds the long head of the bicep to the intertubercular groove of long head of biceps
Transverse humoral ligament
What is the most commonly fractured bone
Clavicle
The capitulum of the humerus articulates with what bone
Radius
Where is the most common site in the hand to find a sesamoid bone
Flexor pollicis longus tendon
Hamate fracture may be associated with injury to
The distal ulnar nerve and artery
Where do the ligaments attach from clavicle to
First rib and distal conoid tubercle to the coracoid process of the scapula
The fragments in a smith’s fracture is driven
Anteriorly
Transverse fractures of the shaft of the humerus can have what happen due to unopposed muscle action
Proximal and distal displacement
What ligament is present at the sternoclavicular joint
Inter clavicular ligament
How many carpals in one wrist
8
The upper extremity skeleton contains
Clavicle, scapula, humerus, ulna, radius, carpals, metacarpals, phalanges
What on the humerus allows for full flexion
Radial fossa an coronoid fossa
What on the ulna serves as a short, stout, lever arm for extension
Olecranon
What on the humerus allows for maximum ROM
Spherical head
Surgical neck fracture of humerus has what associated nerve
Axillary nerve
Function of pectoral girdle
Upper limb attach to axial skeleton
How do the interosseous membrane fibers run between radius and ulna
Inferomedially from radius to ulna
The elbow is what type of joint
Hinge joint
What artery can be affected by scaphoid fracture
Radial artery
Describe X-ray of scaphoid fracture
May not see it on X-ray at first, wait two weeks to look at new x rays
What are the borders of the scapula
Medial, lateral and superior
Chauffeurs fracture can result from
Forced ulnar deviation and supination of the wrist
