04 - Pectoral & Thoracic Region Laughty

Front 1

Where is the jugular notch?

Back 1

TV2-3

Front 2

Where does the first rib articulate?

Back 2

manubrium

Front 3

What type of joint is the first rib to the sternum?

Back 3

fibrocartiligenous

Front 4

What type of joints are ribs 2-7?

Back 4

Synovial

Front 5

What's the costal arch?

Back 5

where ribs 8-10 connect to costal cartilage of rib 7

Front 6

What's the tubercle of the rib for?

Back 6

articulates with transverse process of TV

Front 7

what's the scalene tubercle?

Back 7

on first rib; separates subclavian artery/vein

Front 8

polythelia?

Back 8

extra nipple

Front 9

polymastia?

Back 9

extra tissue in breast

Front 10

4 sources of blood supply in breast?

Back 10

1) anterior perforating branches of internal thoracic artery
2) perforating branches of intercostal artery
3) pectoral branches from thoracoacromial trunk
4) lateral branch of axillary artery

Front 11

what does the subclavian artery bifcurate to?

Back 11

internal thoracic artery & axillary artery

Front 12

lymph drainage of breast?

Back 12

75% - axillary node
rest - medially to internal thoracic node
or down abdomen to subperitoneal lymph

Front 13

Origins of pectoralis major (4)?

Back 13

medial part of clavicle, sternum, costal cartilage of ribs 2-5, and upper rectus sheath

Front 14

Insertion of pectoralis major?

Back 14

greater tubercular crest of humerus

Front 15

action of pectoralis major?

Back 15

adduction, medial rotation, and flexion of arm

Front 16

innervation of pectoralis major?

Back 16

Meidal & lateral pectoral nerves

Front 17

4 blood sources for pectoralis major?

Back 17

1) perforating intercostal arteries
2) thoracoacromial trunk
3) lateral thoraric
4) anterior perforating branch of internal thoracic artery

Front 18

origin of pectoralis minor?

Back 18

ribs 2-4 or 3-5

Front 19

insertion of pectoralis minor?

Back 19

coracoid process of scapula

Front 20

action of pectoralis minor?

Back 20

protraction & depression of shoulders

Front 21

innervation of pectoralis minor?

Back 21

medial pectoral nerve

Front 22

origin of subclavius muscle?

Back 22

junction of first rib with its cartilage

Front 23

insertion of subclavius muscle?

Back 23

inferior surface of clavicle

Front 24

action of subclavius muscle?

Back 24

depress clavicle

Front 25

innervation of subclavius muscle?

Back 25

upper trunk of brachial plexus

Front 26

what layer encompasses the pectoralis major?

Back 26

pectoral fascia

Front 27

what is the clavipectoral fascia?

Back 27

fasica that surrounds subclavius muscle & pectoralis minor

Front 28

what is costacoracoid membrane?

Back 28

clavipectoral fascia from clavicle to upper border of pectoralis minor

Front 29

costacoracoid ligament?

Back 29

thick portion of costacoracoid membrane from 1st rib to coracoid process

Front 30

suspensory ligament of axilla?

Back 30

poriton of clavipectoral fascia from lower border of pectoralis minor to axillary fascia

Front 31

innervation of pectoralis minor?

Back 31

medial pectoral nerve

Front 32

origin of subclavius muscle?

Back 32

junction of first rib with its cartilage

Front 33

insertion of subclavius muscle?

Back 33

inferior surface of clavicle

Front 34

action of subclavius muscle?

Back 34

depress clavicle

Front 35

innervation of subclavius muscle?

Back 35

upper trunk of brachial plexus

Front 36

what layer encompasses the pectoralis major?

Back 36

pectoral fascia

Front 37

what is the clavipectoral fascia?

Back 37

fasica that surrounds subclavius muscle & pectoralis minor

Front 38

what is costacoracoid membrane?

Back 38

clavipectoral fascia from clavicle to upper border of pectoralis minor

Front 39

costacoracoid ligament?

Back 39

thick portion of costacoracoid membrane from 1st rib to coracoid process

Front 40

suspensory ligament of axilla?

Back 40

poriton of clavipectoral fascia from lower border of pectoralis minor to axillary fascia

Front 41

What is the posterior blood supply for the intercostal muscles?

Back 41

1st and 2nd receive blood from highest intercostal branch of costocervical trunk of subclavian artery

remaining get directly from aorta

Front 42

What is the anterior blood supply for intercostal muscle?

Back 42

first 5-6 from internal thoracic branch of subclavian artery

rest from muscophrenic branch

Front 43

What do the anterior intercostal veins drain into?

Back 43

vessels corresponding to arteries

Front 44

What do the posterior intercostal veins drain into?

Back 44

azygos system of veins

Front 45

What are the 2 bifurcations of the internal thoracic artery?

Back 45

musculophrenic artery & superior epigastric artery

Front 46

4 walls of the parietal pleura?

Back 46

costal, diphragmatic, medical, cervical

Front 47

costadiaphragmatic recess

Back 47

where lung does not extend into during quiet breathing

Front 48

what innervates the parietal pleura?

Back 48

intercostal nerves & phrenic nerves (C3-C5)

Front 49

9 contents of the superior mediastinum? anterior to posterior

Back 49

1) thymus
2) brachiocephalic veins & superior vena cava
3) aortic arch
4) trachea
5) esophagus
6) thoracic duct
7) phrenic nerve
8) vagus nerve
9) cardiac nerves

Front 50

blood supply of thymus?

Back 50

pericardiacophrenic vessels

Front 51

2 bifurcations of the superior vena cava?

Back 51

left & right brachiocephalic vein

Front 52

What 2 vessels come together to form right brachiocephalic vein?

Back 52

jugular vein & subclavian vein

Front 53

where is the azygos vein?

Back 53

posterior side of body; on the right side of the thoracic vertebral column; drains to the superior vena cava

Front 54

what does the ligamentum arteriosis do?

Back 54

connect the inferior surfac eof the arch of the aorta to the left pulmonary artery