Skeletal Anatomy-Arm

Front 1

Dermatomes of the body provide innervation to specific areas. Does the C5, C6, C7, C8 go?

Back 1

C5=shoulder (clavicle)
C6=Thumb
C7=Middle Finger
C8=Little Finger

Front 2

The T4, T10, L1, L5, S1 and S2,3 innervate which structures?

Back 2

T4=nipple
T10=Umbilicus
L1= groins
L5=Medial foot
S1= lateral foot
S2,3=Anal area

Front 3

The myotomes of the body innervate muscles. C5, C6, C7, C8 and T1 innervate which muscle?

Back 3

c5=upper abduction of shoulder
c6=Flexion of arm and forearm
c7=extension of forearm
C8, T1= muscles of hand

Front 4

What do these nerves do in to the muscles L2, L3,4 S1, L5, S1,2

Back 4

L2=flex thigh
L3,4- extend leg
S1=flex leg
L5-dorsiflex foot
S1,2 plantar flexs foot

Front 5

Long head of the biceps brachi
Origin?
Insertion?
Main action
Nerve suply?

Back 5

Supraglenoid Tubercle of scapula
Tuberosity of radius and fasica of the forearm via biciptal aponeurosis

Musculocutaneous, flexes and supinates forearm

Front 6

Short Head of the biceps brachi
Origin?
Insertion?
Main action
Nerve suply?

Back 6

Tip of the corecoid process of scapula

Tuberosity of radius and fascia of forearm via bicipital aponneurosis

musculocutaneous. Flexes arm and supinates forearm

Front 7

Coracobrachialis
Origin?
Insertion?
Main action
Nerve suply?

Back 7

Tip of coracoid process of scapula
Middle third of medial surface of humerous
musculocutaneous nerve
Flexes arm

Front 8

Brachialis
Origin?
Insertion?
Main action
Nerve suply?

Back 8

Distal half of anterior surface of humerous

Coronoid process and tuberosity of ulna

Musculocutaneous Nerve
Flexes forearm

Front 9

Long head of tricep brachili
Origin?
Insertion?
Main action
Nerve suply?

Back 9

Infraglenoid tubercle of scapula
Olecranon process of the ulna

Radial nerve

extends the forearm, extends and adducts the arm

Front 10

Lateral Head of the tricep brachili
Origin?
Insertion?
Main action
Nerve suply?

Back 10

Posterior surface of the humerus, superior to radial groove

Olecranon process
Radial nerve
Flexes forearm, flexes and adducts arm

Front 11

Medial Head of the tricep brachili
Origin?
Insertion?
Main action
Nerve suply?

Back 11

Posterior surface of the humerous, inferior to radial groove

Olecranon process of ulna

Radial nerve, Flexes forearm, flexes and adducts arm

Front 12

What lies in the intertubercular sulcus on the anterior portion of the humerous?? (It is between the greater and lesser tubercle_

Back 12

Long head of biceps lies in this groove

Front 13

What does the capitulum articulate with? Trochlea articulates with?

Back 13

Head of the radius and then the trochlear notch of the ulna.

Front 14

With flexion the coronoid process resides where and where does the head of the radius go?

Back 14

Coronoid fossa and the radial fossa.

Front 15

The radial groove is located where and what accompanies the radial nerve?

Back 15

On the posterior surface fo the humerous, deep brachial vessels

Front 16

What is the quadrangular space??

Back 16

The space formed between teres minor, teres major, long head of the tricpes and medial surface of the humerous. Transmits the posterior cirumflex humeral artery and axillary nerve

Front 17

Triangular interal is formed by? and is the location of what?

Back 17

Formed by teres major and lateral and long head of the triceps. The radial nerve and deep brachial artery follow the radial sulcus down.

Front 18

The tendon of origin for the long head of the bicep does what?

Back 18

Travels to and runs over the head of the humerous and ends at the surgical neck of the humerous. IT is held in place by the intertubercular grove.

Front 19

How is the tendon of the long head of the bicep held in place particularily in the intertubicular groove?

Back 19

By the transverse humeral ligament and prolongation of the tendon of pec. major

Front 20

Biciptal aponeurosis does what?

Back 20

Protects the brachial artery. And suppors median cubital vein

Front 21

What forms the cubital fossa?

Back 21

Lateral border=brachioradialis muscle
Medial border= pronator teres muscle
Biciptal aponeurosis fors the roofa and floor is formed by brachialis and supinator muscle

Front 22

Brachial Fascia is continous with???

And attaches to what?

Back 22

The axillary, pectoral and deltoid fasciae.

Attaches to humerous and ulna and is continous with antebrachial fascia

Front 23

Intermuscular septa do what?

Back 23

Seperate posterior and anterior muscles

Front 24

Brachial artery is a continuation of what? and terminates as what? also name the branches?

Back 24

Axillary artery. Terminates as radial and ulnar arteries. Has 3 branches deep brachial, superior and inferior collateral ulnar arteries

Front 25

The deep brachial artery does?

Back 25

Enters the radial groove on the back of the humerous and terminates as radial and middle collateral arteries. Follows radial nerve

Front 26

Superior ulnar collateral artery runs with? The inferior ulnar collateral artery runs where?

Back 26

Ulnar nerve behind the medial intermuscular septum. The back of the elbow.

Front 27

Median nerve has how many branches in the arm? and is located where in relation to the brachial artery?

Back 27

Has no branches in the arm, first is located lateral and then medial to the brachial artery

Front 28

Musculocutaneous nerve pierces which muscle and branches into which muscles/? Continues as what?

Back 28

first pierces the coracobrachialis muscle and then sends branches to the biceps and brachialis muscles. continues as the the lateral antebrachial cutaneous nerve

Front 29

Lateral antebrachial cutaneous nerve is a branch of what nerve?

Back 29

musculocutaneous nerve

Front 30

Radial Nerve pass through which groove with which artery?? It then pierces which septum and dividides into what branches??

Back 30

Goes down the radial groove with the deep brachial artery. It then pierces the lateral intermuscluar septum and branches into superficial and deep branches

Front 31

The radial nerve branches to?

Back 31

The triceps and the skin

Front 32

Ulnar nerve is located where in relation to the axillary and brachial arteries until it pierces which septum? to enter the posterior compartment and run with this artery in a groove behind the medial epicondyle of the humerous?

Back 32

Is located medial to the axillary and brachialis arteries until it pierces the medial intermuscular septum. It then runs with the superior ulnar collateral artery.

Front 33

Superficial structures of the cubital fossa are?

Back 33

The cephalic vein-laterla edge
Median cubital vein- from cephalic vein below elbow
Basillic vein-medial edge of phosa, medial and lateral antebrachial cutaneous nerves

Front 34

The deep structures of the cubotial fossa that run medial to lateral

Back 34

Median nerve, brachial artery, biceps tendon, radial nerve (lies beneath brachioradialis)

Front 35

What is the bicipital aponeurosis?

Back 35

A expansion and thickening of thickening of the brachial fascia extending into the medial side of the proximal forearm

Front 36

What attaches to the radial tuberosisty?

what attaches to the coronoid process of the ulna and the ulnar tuberosity?

Back 36

Biceps brachia tendon

Brachialis muscle

Front 37

Sternoclavicular joint is

Back 37

The only bony attachment of the upper limb to trunk or axial skeleton has alot of range of motion. Very stable joint that has an articulation between sternal end of clavicale and articular disc, and disc to manubrium of sternum. Held in place by the costoclavicular ligament

Front 38

Costoclavicular ligament

Back 38

Ligament that tightly holds clavicle to the 1st rib. The joint of the sternoclavicular joint is very flexible

Front 39

Acromicoclavicular joint has important ligaments?

Back 39

Articular capsule, superior and inferior acromioclaviclar ligaments and the coracoclavicular ligament (accessory)

Front 40

Glenohumeral Joint has lax capsular ligaments that allow what??
The joint is reinforced anteriorly by the tendon of the what and superiroly by what tendon and posteriorly by what tendon?

Back 40

The ligaments allow extensive motion. Anteriorly is the subscapularis, posteriorly is the teres minor and serratus anterior and superiorly by the supraspinatious tendonThe

Front 41

The clavicle plays a big role in doing what for the scapula?

Back 41

Keeping the scapula in the normal lateral position.

Front 42

Subacromial and subdeltoid bursa is located below the what?

Back 42

Deltoid muscle and the acromion and coracoacromial ligament

Front 43

Capsules of the glenohumeral joint??

Back 43

Are loose, if muscles holding humerous are cut the capsule will fall 1/2 inch

Front 44

Synovial membrane of the glenohumeral joint encloses?

Back 44

tendon of the long head of biceps in a tubular sheath between tubercles of humerus

Front 45

Ligaments and accesory structures of Glenohumeral joint

Back 45

Glenohumeral ligaments,
coracohumeral ligament, transverse humeral ligament, coracromial ligament, glenoid labrum, subacromial bursa

Front 46

Location of the subacromial bursa?

Back 46

interposed between the supraspinatous tendon and acromion

Front 47

Glenoid labrum is what?

Back 47

a lip of cartialage that slighly deepens the fossa

Front 48

coracoacroial ligament goes from where to where?

Back 48

from coracoid process to acromion process of scapua, not strictly a ligament of the shoulder joint but it serves as resistance to force upward pressure on humerous

Front 49

Transverse humeral ligament goes from where to where and holds what?

Back 49

The greater to lesser tubercle, holds the tendon of the long head of the bicep.

Front 50

Erb-Duchenne Palsy is what?

Back 50

C5-C6 injuries that result in paralysis of deltoid, biceps brachi, brachialis, brachioradialis and infra/supraspinous.

Inability to medially rotate shoulder, pronation at forearm and abduct arm from side

Front 51

Klumpke's palsy is what?

Back 51

Klumpke's Palsy C8-T1 cause problems with Ulnar nerve

Weakness in forearm flexors, fingers and thumb.

Front 52

Erb-Duchenne Palsy is what?

Back 52

C5-C6 injuries that result in paralysis of deltoid, biceps brachi, brachialis, brachioradialis and infra/supraspinous.

Inability to medially rotate shoulder, pronation at forearm and abduct arm from side

Front 53

Klumpke's palsy is what?

Back 53

Klumpke's Palsy C8-T1 cause problems with Ulnar nerve

Weakness in forearm flexors, fingers and thumb.

Front 54

Intertubercular sulcus lies in between the greater and lesser tubercle and the long head of bicep lies there, Capitum articulates with the radius, while trochlea articulates with the trochlear notch of the ulna.

Radial fossa=radius, coronoid fossa= coronoid process of ulna. Medial epicondyle-origin of flexor muscles of forearm

Back 54

Radial groove is where the deep brachial vessel and radial nerve travel down. Olecranon fossa is the place where olecranon process of the ulna goes

Front 55

Long Head goes to infraglenoid tubercle
Lateral head to posterior surface of the humerous lateral to radial groove

Back 55

Radial and deep brachial travel down the arm thru radial groove.

Medial head is medial to radial groove

Front 56

Long head of bicep originates to supraglenoid tubercle while the short head originates to the corocoid process.

Biceps form a tendon that inserts at the radial. Biceps are innervated by the musculocutaneous nerve

Back 56

The coracobrachialis muscle attaches superiorly to the coracoid process and inferiorly on the humerus at its midpoint on the medial side. The musculocutaneous nerve innervates the muscle and usually passes through the muscle before coming to lie between the biceps and brachialis muscles that it also innervates. The lateral cutaneous nerve of the forearm is a continuation of the musculocutaneous nerve

Front 57

The brachial artery begins at the lateral border of the teres major muscle and is a continuation of the axillary artery. Has three major branches the deep brachial artery, which runs along the radial groove, the superior ulnar collateral artery which follows the ulnar nerve to medial epicondyle.

Back 57

Third is the infererior ulnar collateral artery. Brachial artery accompanies the median nerve in the arm

Front 58

Deep brachial artery goes with radial nerve

Back 58

Cubital fossa is the areae where the brachial artery divides into radial and ulnar arteries

Front 59

Back 59

The glenohumeral joint has lax glenohumeral (capsular) ligaments that permit extensive movement of the joint. The joint is reinforced anteriorly by the tendon of the subscapularis, superiorly by the supraspinatus tendon, and posteriorly by the tendons of the infraspinatus and teres minor muscles. No muscle tendons are found inferiorly, and the head of the humerus usually dislocates inferiorly, and then is usually pulled anteriorly.