Test Two questions Flashcards
What bone transmits shock from the upper limb to the axial skeleton?
Clavicle
The clavicle forms boundaries of what?
Cervicoaxilary canal (passageway b/w neck and arm)
What is the largest bone of the upper limb?
Humerus
What does the anatomical neck seperate?
Head of humerus and tubercles
Characteristics of capitulim
Articulates with head of radius
On lateral side of humerus
More rounded
Characteristics of Trochlea
Articulation with the trochlear notch of the ulna
On medial side of humerus
Not the rounded one
Coronoid process
Recieves coronoid process of the ulna during full flexion of the elbow
On anterior side of humerus
Olecranon fossa
For olecranon process of ulna during extension of elbow
On posterior side
Radial fossa
Accommodates the edge of the head of radius when elbow is fully flexed
What is the stabilizing bone of the forearm?
Ulna
What are the landmarks of the ulna
At the proximal end Anteriorly-coronoid process Posteriorly-olecranon process Inferior to coronoid-tuberosity of ulna Lateral to coronoid-radial notch(for head of radius) Distal end-ulnar styloid process
Both forms the wall of the trochlear notch
What are the landmarks of the radius
Cylindrical head
Radial tuberosity
Radial styloid process, larger than ulna and farther down
Name carpal bones
1st to 5th
Some Lovers Try Positions That They Can’t Handle
Scaphoid Lunate, Triquetral, Pisiform, Trapezium, Trapezoid, Capitate, Hamate
List all bones in hand
Scaphoid, Lunate, Triquetrium, Pisiform, Trapezium, Trapezoid, Capitate, Hamate
5 metacarpals 1-5
5 proximal phalanges, 4 middle phalanges, 5 distal phalanges
Pectoral fascia
Invest the pectoralis major, goes down the lateral side to become axillary fascia
Clavipectoral fascia
encloses the subclavius and pectoralis minor
Costocoracoid membrane
Part of the fascia between the pectoralis minor and the subclavius
Suspensory ligament of axilla
part of clavipectoral fascia, inferior to the pectoralis minor
-supports the axillary fascia and pulls it and the skin inferior to it, upward during abduction…forming the axillary fossa
Deltoid fascia
Invests deltoid and continuous with the pectoral fascia
Brachial fascia
Covers arm like sleeve continuous superiorly with deltoid, pectoral, axillary and infraspinous fascia
Medial and lateral intermuscular septa
Extend from deep surface of brachial fascia and attach to the central shaft and medial and lateral supraepicondylar ridges of the humerus
Divide arm into anterior(flexor) and posterior (extensor) comparments
Antebrachial fascia
In forearm, seperated y the interosseous membrane connecting the radius and the ulna
Extensor retinaculum
Flexor retinaculum
- transverse bangs which holds the extensor tendons in position
- continuation of antebrachial fascia
Supraclavicular nerve
C3,C4
Passes anterior to the clavicle immediately deep the platysma
Supplies skin over clavicle and the superolateral aspect of pectoralis minor
Posterior cutaneous nerve of arm
(C5-C8)
Branch of radial nerve
Supplies skin on posterior surface of arm
Posterior cutaneous nerve of forearm
C5-C8
Branch of radial nerve
Supplies skin on posterior surface of forearm
Superior lateral cutaneous nerve of the arm
(C5, C6)
Terminal branch of axillary nerve
Supplies skin over lower part of deltoid and on the lateral side of midarm
Inferior lateral cutaneous nerve of arm
C5, C6
Branch of radial nerve
Supplies skin of inferolateral aspect of arm
Lateral cutaneous nerve of forearm
(C6, C7)
Terminal branch of musculotaneous nerve
Supplies skin on lateral side of forearm
Medial cutaneous nerve of the arm (mbc)
(C8-T2)
Arises from medial cord of the brachial plexus
Skin on medial side
Intercostal brachial nerve
T2
Arises from medial cord of the brachial plexus
Supplies skin on medial side
Medial cutaneous nerve of the forearm
(C8, T1)
From medial cord of brachial plexus
Supplies skin on the anterior and medial surfaces of the forearm
Perforating Veins
Form communication between the superficial and deep veins
Median Cubital Vein
Communicates with cephalic vein and passes the anterior aspect of the elbow and joins the basilic vein and continues to join the axillary vein
Median antebrachial vein
Ascends in the middle of the anterior aspect of the forearm
