Lecture 2 - Thoracic Walls and Breast Flashcards Preview

Viscera & Visceral Systems > Lecture 2 - Thoracic Walls and Breast > Flashcards

Flashcards in Lecture 2 - Thoracic Walls and Breast Deck (33):
1

What are the purposes of the thoracic wall?

Protects
Mechanical basis of breathing

2

There are 3 types of ribs, what are they?

True - attach directly to sternum via costal cartilage
False - Attach to costal cartilage of rib above
Floating - Have no anterior attachment

3

Which ribs are true

1-7

4

which ribs are false?

8-10

5

Which ribs are floating?

11 and 12

6

What are the characteristics of a Typical rib?

Superior facet / inferior facet
costal groove
shaft
articular facet

7

The Costovertebral joint is weak or strong?

Very Strong - the ribs will break first rather than the joint upon impact

8

What is the sternal angle?

Between the Manubrium and body of sternum

9

Thoracic vertebrae mainly permit

rotation

10

What typesof intercostal muscles are there?

External intercostal
internal intercostals
Innermost intercostals

11

The Innermost intercostals are deficient ______

posteriorly

12

The intercostal space contains:

Intercostal

vein
artery
nerve
the 3 different intercostal muscles

13

The nipple dermatome is __

T4

14

The sympathetic ganglion is within the ....

sympathetic trunk

15

The attachment of pectoralis minor is

Coracoid process

16

The action of pec minor is..

elevates ribs/stabilizes scapula

17

Subclaivus is responsible for

anchoring the clavicle

18

Which muscle protracts the scapula

serratus anterior
Ribs 1-8

19

Serratus posterior is from

Vertebra to posterior ribs

superior and inferior parts

20

Serratus posterior superior is from spinous processes...
what is it's action?

c7-T3 (elevates the ribs)

21

Serratus posterior inferior is from spinous processes...
what is it's action?

T11-L2

depresses the ribs

22

What are the coverings of the thoracic cage?

sub cut. fat
superficial fascia
(mammary gland)
skin

23

The mamary gland sits on fascia superifical to..

pectoralis major

24

How many lobules in the mammary gland

15-20

25

Each mammary lobule contains ______, the milk secreting portion of the lobule

Drained by ______duct which opens independently on the nipple

Each mammary lobule contains alveoli, the milk secreting portion of the lobule

Drained by lactiferous duct which opens independently on the nipple

26

True or False

There is fat between the lobules in the mammary gland

True

27

The mammary gland is attached to skin and fascia by

suspensory ligaments

28

What is the areola?

Pigmented area around nipple
sebaceous glands for lubrication

29

Thge nipple is ..

smooth muscle

30

Blood supply to the breast is via..

lateral mammary braches of lateral thoracic artery (from axillary artery)

and

branches from the internal thoracic artery

31

what percentage of lymph is drained to the axillary nodes?

75%

32

Cancer cells can cause damage to _______ _______. As a result, the skin becomes thick or dimpled, or the nipple invered, bacause of the...

Cancer cells can cause damage to suspensory ligaments. Asa aresult, the skin becomes thick o dimpled, or the nipple invered, bcause of the shortening of the suspensory ligament

33

men can still get breast cancer in the _____ system but also the ducts

men can still get breast cancer in the glandular system but also the ducts