UE Osteology Flashcards
What does the sternal facet do
Articulates with the manubrium
What attaches to the subclavian groove of the clavicle
Subclavius M.
What does the acromial facet do
Articulates with the acromion of the scapula
What attaches to the trapezoid line
The trapezoid L.
What does the gelnoid cavity do
Articulates with the humeral head
What attaches to the supraglenoid tubercle
The long head of the biceps brachii M.
What attaches to the infraglenoid tubercle
The long head of the triceps brachii M.
What bone articulates with the acromion
The clavicle
What attaches to the deltoid tubercle of the scapula
The deltoid M.
What lies on the the supraspinous fossa
Supraspinatus M
What lies on the infraspinous fossa
The infraspinatous M.
What lies on the subscapular fossa
The subscapularis M.
What is the most common site of fracture on the humerus
Surgical neck
What attaches ot the greater humeral tubercle
Supraspinatus, infraspinatus, and teres minor M.
What attaches to the lesser humeral tubercle
Subscapularis M.
What attaches to the intertubercular groove
Pectoralis Major, teres major, and latissimus dorsi M.
What dos the trochlea do
Articulates with the throchlear notch of the proximal ulna
What does the capitulum do
Articulates with the radial head
What does the fovea of radial head do
Articulates with capitulum of the humeral condyle
What does the ulnar notch of the radius do
Articulates with the ulnar head
What does the dorsal tubercle do
Acts as a pulley for the extensopr and pollicis longus M.
What are the bones of the proximal row of the carpal bone
Scaphoid
Lunate
Triquetrum
Pisiform
What is the most commonly fractured carpal
The scaphoid bone
Severe abduction of the extended elbow can result in what
Avulsion of the medial humeral epicondyle
What is a fracture of the elbow?
A fracture of the olecranon, an avulsion fracture
What is a Colle’s fracture
A fracture of the distal end of the radius
Presents as the bent fork
What is a break of the scaphoid bone usually from? Why is it usually misdiagnoed
Usually from falling. Misdiagnosed as a sprain bc not well seen on X-ray
What dos the lunate do
Articulate with the radius
What is the passage anterior to the carpal bones and posterior to the flexor retinaculum known as and what is the clinical significance
The carpal tunnel
Swelling here causes carpal tunnel syndrome
What is the largest carpal bone
The capitate
How many middle phalanges are there
Only 4, compared to the others have 5 for everything else
What is a boxer’s fracture
The end of the 5th metacarpal is broken
Where will you have pain and numbness with carpal tunnel syndrome
The anatomical lateral portions (1 - 3)
Where will you have pain with Guyon’s canal syndrome
The medial two
What is the depression between the pisiform and hamulus of the hamate known as and what is the clinical significance
Known as guyon tunnel
Ulnar nerve passes through here and is susceptible to compression and pain
What usually tears from someone throwing a ball
The glenoid labrum
This us due to a sudden retraction of the biceps brachii M.
What types of fractures and where are especially common in children
Green stick fractures of the clavicle
What is the weakest part of the clavicle
The junction of its middle and lateral thirds
What happens after fractures of the clavicle
The sternocleidomastoid muscle elevates the medial fragments of the bone
What so the first bone to ossify and at what week in development
The clavicle at week 5
Fracture of the scapula is usually due to what
Severe trauma
Most fractures of the scapula involve what
The acromion
Fracturs of ths urgical neck are expecially common in what population
The elderly with osteoporosis
What is an impacted fracture
Bone fragment pushed into the spongy part of itself
An avulsion fracture of the greater tubercle of the humerus is usually seen in who
Middle-age and elderly people
What does an intercondylar fracture result from and what happens
A severe fall on the flexed elbow
The olecranon of the ulna is driven like a wedge between the medial and lateral parts of the condyle of the humerus, separating them.
Fractures of the distal end of the humerus are common in who
Adults >50
For colles fracture, what type of fracture is it
A complete transverse fracture of the distal radius
