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Flashcards in Week 5 Deck (155)
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1

What are the bones of the posterior shoulder/deltoid region?

• Clavicle
• Scapula
• Humerus

2

The shaft of the clavicle is the ___ of it

The shaft of the clavicle is the *middle 1/3* of it

3

An injury through the clavicle, usually fractures the ___

An injury through the clavicle, usually fractures the *shaft*

4

The articular surface of the clavicle on the acromion end faces ___ as opposed to the articular surface of the acromion which faces ___

The articular surface of the clavicle on the acromion end faces *down* as opposed to the articular surface of the acromion which faces *up*

5

Why is the conoid tubercle important?

It is where the coracoclavicular ligaments attach and helps to support the AC joint

6

____ ligament joins the clavicle to the 1st rib

*Costoclavicular* ligament joins the clavicle to the 1st rib

7

The most lateral and superior part of the scapula is the ___

The most lateral and superior part of the scapula is the *acromion*

8

The inferior angle of the scapula is at what costal/rib level?

7th costal/rib level

9

What are the anatomical descriptions of the acromion?

- Bigliani type 1: straight
- Bigliani type 2: curved
- Bigliani type 3: hooked

10

What does a curved acromion do?

It lowers the space between the acromion and the glenoid cavity, which will result in impingement issues as the shoulder is moved

11

The radial groove is for ____

The radial groove is for *the radial nerve to pass from behind the shoulder to an anterior position*

12

The ulnar groove is the opening to the ___

The ulnar groove is the opening to the *cubinal tunnel*

13

When is the ulna nerve stretched?

When you flex the elbow

14

The supraspinalis outlet is positioned where?

Between the glenoid fossa (superior) and the undersurface of the acromion

15

What is the origin of the deltoid?

Lateral third of clavicle, acromion and spine of the scapula

16

What is the insertion of the deltoid?

Deltoid tuberosity of humerus

17

What innervates the deltoid/

Axillary nerve

18

Where does the axillary nerve come from?

Posterior cord of the brachial plexus

19

What is the action of the anterior part of the deltoid?

Flexes and medially rotates
humerus.

20

What is the action of the middle part of the deltoid?

Abducts humerus

21

What is the action of the posterior part of the deltoid?

Extends and laterally rotates
humerus

22

___ is the outer surface muscle of the shoulder

*The deltoid* is the outer surface muscle of the shoulder

23

What passes through the quadrangular space?

Axillary n.
Post circumflex humeral artery

24

What passes through the triangular space?

Circumflex scapular artery

25

What do you see when you look through the triangular interval?

Radial nerve
Profunda brachii artery

26

What are the boundaries of the quadrangular space?

- Teres minor superiorly
- Humerus laterally
- Teres major inferiorly
- Long headed triceps medially

27

What are the boundaries of the triangular space?

- Teres minor superiorly
- Long headed triceps laterally
- Teres major inferiorly

28

What are the boundaries of the triangular interval?

- Teres major superiorly
- Long headed triceps medially
- Lateral head of the triceps laterally

29

The suprascapular nerve passes underneath the ____ to get into the supraspinous fossa and then go around the spinal-glenoid notch to innervates the structures in the ____

The suprascapular nerve passes underneath the *suprascapular ligament* to get into the supraspinous fossa and then go around the spinal-glenoid notch to innervates the structures in the *infraspinous fossa*

30

The suprascapular artery passes __ the suprascapular ligament

The suprascapular artery passes *over the top* the suprascapular ligament