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33 Cards in this Set
- Front
- Back
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Name the joint of the upper limb |
1. scapulothoracic 2. Glenohumeral 3. Elbow 4. Radio-ulna 5. wrist joint
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what are the segments of the upper limb? |
Shoulder Arm Forearm Hand |
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What are the 3 regions of the shoulder? |
Pectoral region Scapular region deltoid region |
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which is the longest segment of the upper limb? |
The Arm
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what is the hand composed of? |
carpus bones metacarpus bones phalanges |
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what is the pectoral girdle composed of? |
Scapulae and clavicle connected to the sternum |
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where does the superior appendicular skeleton articulates with the axial skeleton? |
at the sternoclavicular joint |
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which bone connects the upper limb to the trunk? |
clavicle |
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Describe the shape of the clavicle? |
medial 2/3 - convex anteriorly lateral 1/3 - concave anteriorly sternal end - enlarged and triagular acromiol end - flat |
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which part of the sturnum does the clavicle articulate with? |
manubrium (sternoclavicular joint) |
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which part of the scapula does the clavicle articulate with? |
Acromion ( Acromioclavicular joint) |
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what the function of the clavicle? |
-provides rigid support to the upper limb -forms one of the bony boundaries of the cervico-axillary canal. ( hence provides protection to the neurovascular bundle supplying the upper limb) -transmits shock from the upper limb to the axial skeleton. |
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what ligament joint the scapula to the clavicle? what are the two part of this ligament? |
coracoclavicular ligament -medial> conoid lig - conoid tubercle -lateral> trapezoid lig- trapezoid line |
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which muscle is attached to the clavicle? where? |
subclavius- subclavius groove |
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which lig connect the clavicle to the first rib? |
costoclavicular lig |
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what the location of the scapula? |
posterolateral aspect of the thorax ( 2nd-7th rib) |
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The convex posterior surface of the scapula is unevenly divided by? into? |
-is divided by the spine of the scapula into; -Supraspinous fossa (smaller) -Infraspinous fossa (larger)
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The concave costal surface of the scapula forms? |
a large subscapular fossa |
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which muscle attaches to the deltoid tubercle? |
medial attachment of the deltoid. |
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which part of the scapula articulates with the humerus? |
Glenoid cavity (glenohumeral joint) |
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which structure is superior to the glenoid tubercle and projects anteriorly? |
coracoid process |
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Where does the superior border of the scapula join the base of the coracoid process? |
at the suprascapular notch |
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what are the structure on the proximal end of the humerus? |
-head of the humerus -surgical and anatomical neck -greater and lesser tubecles |
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Anatomic neck |
-separates the head from the greater and lesser tubecle. - Indicates the line of attachment of the glenohumeral joint capsule. |
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surgical neck |
-located distal to the head and tubecles -common site of fracture. |
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Greater tubecle |
- located at the lateral margin of the humerus |
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lesser tubecle |
-projects anteriorly from the bone |
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what groove separates the two tubecles? what passes here? |
- Intertubecular / bicipital groove - passage for the long head of the bicep |
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what are the two prominent features on the surface of the shaft of the humerus? |
1.Deltoid tuberosity laterally-attachment for the deltoid muscle 2. Oblique radial groove posterior - passage for the radial nerve and deep artery of the arm. |
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what are the features of the inferior end of the shaft of the humerus? |
-sharp medial and lateral supraepicondylar ridges. -prominent medial and lateral epicondyles |
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what are the structures that form the distal end of the humerus? (condyle of the humerus) |
trochlea; capitulum; and olecranon,coronoid and radial fossae |
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what are the articular surfaces on the condyle of the humerus? |
1. Capitulum (little head)- lateral & articulates with the radius. 2. Trochlea (pulley) - medial & articulates trochlear notch of the ulna |
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what are the location of the three fossae and what structures do the accommodate |
1. Coronoid fossa (anterior) -receives the coronoid process of the ulna during full flexion. 2. Olecranon fossa (posterior)- accommodates the olecranon of the ulna during full extension. 3. Radial fossa ( anterior & superior to the capitulum)- accommodates the edge of the head of the radius during full flexion. |
