Upper Limbs

Question 1

What are the components of the upper limb?

Answer 1

Shoulder
Arm
Forearm
Hand

Question 2

What does the Pectoral Girdles (AKA Shoulder girdles) do, what are they comprised of & held in place by?

Answer 2

Attach bones od upper limbs to axial skeleton
Comprised of clavicle & scapula
Held in place by muscle attachments

Question 3

How does the clavicle lie?

Answer 3

Horizontally is superior & anterior part of thorax
Superior to 1st rib
Articulates w/ sternum & scapula

Question 4

2 ends of the clavicle?

Answer 4

Acromial extremity & sternal extremity

Question 5

What is the conoid tubercle?

Answer 5

Site of attachment for coracoclavicular ligament

Between clavicle and coracoid process of scapula

Question 6

What does the shoulder articulate with?

Answer 6

Clavicle & Humerus

other bones anteriorly

Question 7

The Lateral end of Scapula spine, is the high point of shoulder?

Answer 7

Acromion

Question 8

This cavity accepts the head of the humerus and what joint does that form?

Answer 8

Glenoid cavity

Glenohumeral joint

Question 9

The thin edge of the scapula which is closer to the vertebral column is the medial border of the scapula?

Answer 9

Vertebral border

Question 10

Lateral border of the scapula is thick closer to arm is known as?

Answer 10

Axillary border

Question 11

The medial and lateral borders of the scapula join at the?

Answer 11

Inferior angle

Question 12

What is the suprascapular notch and what passes through it?

Answer 12

an indentation along superior border

suprascapular nerve passes through

Question 13

This is a projection @ lateral end of superior border Tendons / muscles/ ligaments attach

(Crow’s beak)

Answer 13

Coracoid process

Question 14

This fossa is superior to the Spine of the scapula? what attaches to it?

Answer 14

Supraspinous fossa

Supraspinatus muscle

Question 15

This fossa is inferior to the spine of the scapula & what attaches to it?

Answer 15

infraspinous fossa

infraspinatus muscle

Question 16

This is the anterior surface of the scapula and what attaches to it?

Answer 16

Subscapular fossa

subscapularis muscle

Question 17

What ligament traverses the scapular notch and convert it into a foramen?

Answer 17

Superior transverse scapular ligament

Question 18

What does the clavicle articulate with?

Answer 18

Manubrium of the sternum @ sternoclavicular joint
&
Scapula @ Acromioclavicular joint

Question 19

What does the Scapula articulate with?

Answer 19

Clvical & Humerus @
Acromioclavicular joint &
Glenohumeral joint

Question 20

What is the only true synovial joint that connects the pectoral girdle with the ribcage?

Answer 20

Sternoclavicular joint

Question 21

What is the site of shoulder separation and what are the stablizing ligaments @ that joint

Answer 21

Acomioclavicular Joint

Acomioclavicular ligament
Coracoclavicular ligaments: Trapezoid lig., Conoid lig.

Question 22

What is the logest bone in the upper extremety and where does it articulate?

Answer 22

Humerus

Articulates w/ scapula proximally & elbow distally

Question 23

sites of insertion for muscles that move the humerus at the shoulder are known as?

Answer 23

Greater and Lesser Tubercles

Question 24

where is the anatomical neck of the humerus located? What is attached @ this site?

Answer 24

between the head and tubercles

site of attachment of articular capsule

Question 25

What inserts onto the greater turbercle of the humerus?

Answer 25

Supraspinatus infraspinatus & Teres minor

Question 26

What inserts on the lesser tubercle of the humerus?

Answer 26

subscapularis

Question 27

What does the Intertubercular Sulcus contain?

Answer 27

long head of biceps brachii

Question 28

This is located in the middle of the humeral shaft and serves as an attachment of the deltoid muscle?

Answer 28

Deltiod tuberosity

Question 29

On the distal end of the humerus, the anterior surface is known as (?) on the shaft and ends in the (?)

Answer 29

Sharp lateral supracondylar ridge lateral epicondyle

Question 30

The medial supracondylar ridge terminates where?

Answer 30

@ the medial epicondyle

Question 31

This structure is rounded & its on the distal end of the humerus near the lateral epicondyle

Answer 31

Capitulum

Question 32

this has an indentation and it is medial to the capitulum (spindal shaped)

Answer 32

Trochlea

Question 33

This lies above the capitulum & contains part of radius during flexion?

Answer 33

radial fossa

Question 34

this lies above the trochlea & recieves the ulnar coronoid process during flexion?

Answer 34

coroniod fossa

Question 35

this is a large depression on the posterior distal end of the humerus that recieves the olecranon process of ulna when forearm extends?

Answer 35

Olecranon fossa

Question 36

Which forearm bone forms the medial and lateral borders of the forearm?

Answer 36

Medial= Ulna Lateral= Radius

Question 37

What forms the prominence of the elbow and which bone of the forearm is it on?

Answer 37

Olecranon process on the proximal portion of the Ulna

Question 38

This is an anterior projection @ the proximal end of the Ulna

Answer 38

Coronoid process

Question 39

this is a large curved area that forms the elbow joint, its formation is due to the olecron & coronoid process recieving the trochlea of the humerus

Answer 39

Trochlear notch

Question 40

This is on the lateral side of the coronoid process and recieves the radius?

Answer 40

radial notch

Question 41

This is inferior to the coronoid process and the bachialis muscle attaches here

Answer 41

ulnar tuberosity

Question 42

Where is the head of the ulna located?

Answer 42

on the distal end of the ulna

Question 43

What is the attachment point for the ulnar collateral ligament to the wrist?

Answer 43

the styloid process

Question 44

What is the shape of the radial head and what does it articulate with/@?

Answer 44

Disc shaped @ proximal end | Articulates w/both capitulum of humerus & radial notch of Ulna

Question 45

the roughened area that is inferior to radial neck & serves as attachment for tendons of biceps brachii muscle

Answer 45

radial tuberosity

Question 46

This is on the distal end of the radius and proximal to the thumb, providing attachement for the brachioradialis muscle near the radial collateral ligament of wrist

Answer 46

Radial styloid proce

Question 47

This is a broad, flat, fibrous connective tissue that joins shafts of Radius & Ulna providing attachment for some tendons of deep skeletal muscle of the forearm?

Answer 47

Interosseous membrane

Question 48

where is the radioulnar joint located?

Answer 48

articulation of radial head w/ ulna's radial notch is proximal to this

Question 49

What does the distal end of the ulna articulate with?

Answer 49

articulates w/the ulnar notch of the radius @ distal radioulnar joint

Question 50

What is the dorsal tubercle of the radius (AKA Lister's tubercle)

Answer 50

a small prominence on dorsal aspect / distal end of radius, lateral to extensor pollicis longus tendon, serve as trochlea (pully)

Question 51

What are the names of the 8 carpal bones (Proximal row 1st lateral to medial then distal row lateral to meadial) "Stop Letting Those People Touch The Cadaver's Hand"

Answer 51

``` Proximal row (L->M) Scaphoid Lunate Triquetrum Pisiform ``` ``` Distal row (L->M) Trapezium Trapezoid Capitate Hamate ```

Question 52

Muscles of the upper limb that attach to the thoracic cage are apart of the?

Answer 52

Thoracoappendicular muscles

Question 53

Anterior Thoracoappendicular muscles include?

Answer 53

Pectoralis major & minor Serratus anterior subsclavian

Question 54

The posterior Thoracoappendicular muscles includes?

Answer 54

Latissimus Dorsi

Question 55

What is the origin / insertion / action / innervation of pectoralis major?

Answer 55

O: Clavcile, Sternum, costal cartilage Insert: intertuberculr sulcus (groove) of humerus Act: adducts & medially rotateshumerus @ shoulder Inner: Latteral & Medial pectoral nerve

Question 56

What is the origin / insertion / action / innervation of pectoralis minor?

Answer 56

O: Ribs 2-5 Insert: coracoid process of scapula Acton abduct (protracts) scapula & rotates it dowards, elevatesribs during forced inhalation Inner: medial pectoral nerve