Brainscape's Knowledge GenomeTM


Top Flashcards (Certified)
All Flashcards

Anatomy Exam 3 > L19: Thoracic Cavity - Mediastinum & Respiratory Diaphragm > Flashcards

L19: Thoracic Cavity - Mediastinum & Respiratory Diaphragm Flashcards

(71 cards)

Start Studying
1
Q

mediastinum = ?

A

space between lungs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

subdivisions of mediastinum

A

superior and inferior mediastinum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

what separates the subdivisions of mediastinum

A

superior is separated from inf. by horizontal plane

between sternal angle and IV disc/T4-5

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

contents of superior mediastinum - retrosternal

A

great vessels and branches

thymus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

contents of sup. med. - prevertebral

A 
trachea
esophagus
thoracic duct
sympathetic trunks
vagus nerves
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

contents of sup. mediastinum are broken into ___ compartments, while the inf. is broken into ?

A

retrosternal vs. prevertebral

ant. middle post.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

inf. med. - anterior contents

A

thymus
fat
lymph nodes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

inf. med. - middle contents

A 
pericardium
phrenic nerves
pericardiacophrenic art.
heart
great vessels
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

inf. med. - posterior contents

A 
esophagus
thoracic duct
aorta and branches
vagus nerves
sympathetic trunks
azygos vein sys.
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

how azygos describe a vessel?

A

means it has no twin

no counterpart on other side of body

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

arterial supply to thymus

A

ant. mediastinal arteries

inf. thyroid arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

ant. mediastinal arteries are from the ?

A

internal thoracic artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

inf. thyroid arteries are from the ?

A

subclavian artery

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

venous drainage of the thymus

A

into left brachiocephalic vein

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

innervation of thymus

A

parasympathetic – vagus n.

sympathetic – cardiac plexus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

pericardium ligaments

A

pericardiacophrenic lig.

sup. and inf. sternopericardial ligaments

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

blood supply to pericardium

A

pericardial arteries
pericardiacophrenic arteries
musculophrenic arteries

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

nerve supply to pericardium

A

vagus nerve
phrenic nerve
sympathetic trunk

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

relate midline to route of esophagus

A
  1. left of it at base of neck
  2. at midline w/ level of aortic arch
  3. left of it as piercing diaphragm
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

the esophagus travels ____ trachea and ____ spinal column.

A

behind trachea

in front of spine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

the esophagus pierces the ____ at level of ?

A

diaphragm

level T10

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

esophageal plexus is formed via ?

A

left and right vagus nerves

a continuation of posterior pulmonary plexus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

upper third of esophageal innervation

A

voluntary muscle

recurrent laryngeal n.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

lower 2/3s of esophagus innervation

A

involuntary muscle

vagus and sympathetic chain

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
beginning and end of thoracic aorta
T4 - sternal angle | T12
26
ending of thoracic aorta
T12 where it pierces diaphragm continues as abdominal aorta
27
thoracic aorta - pericardial branches
to post. pericardium
28
thoracic aorta - __ bronchial branches
2 branches | to left bronchus
29
thoracic aorta - branches to esophagus
small superior 10% large inferior 90% esophageal branches
30
thoracic aorta - branch to ____ mediastinum
posterior
31
the thoracic aorta has 9 pairs of ____ arteries and 1 pair of _____ arteries
intercostal subcostal
32
branch off thoracic aorta to superior surface of diaphragm
superior phrenic arteries
33
azygos vein is formed below ____ by the union of ?
below diaphragm right ascending lumbar vein + right subcostal vein
34
the azygos vein ascends along the ___ side of the TV.
right side
35
azygos vein ends by entering the ?
superior vena cava
36
2 main tributaries of the azygos vein
hemiazygos and accessory hemiazygos veins
37
hemiazygos is formed by the union of ?
left ascending lumbar vein + left subcostal vein
38
route of hemiazygos vein
pierces diaphragm ascends left of TV up to TV9 crosses spine empties into azygos
39
accessory hemiazygos runs ?
left of upper TV
40
accessory hemiazygos receives blood ?
from superior intercostal vein and left intercostal veins 4-8
41
ending of accessory hemiazygos
crosses spine and empties into azygos vein
42
nodes behind sternum
parasternal nodes
43
nodes that lie in posterior intercostal space between heads of ribs
post. intercostal nodes
44
nodes that lie on upper surface of diaphragm
diaphragmatic nodes
45
nodes that lie along the esophagus and descending thoracic aorta
post. mediastinal nodes
46
nodes that lie along brachiocephalic veins/trunk
brachiocephalic nodes
47
largest nodes in body
tracheobronchial nodes includes nodes about trachea, bronchi and lungs
48
parasternal node lymph
from: thoracic wall upper ant. abdominal wall diaphragm
49
____ nodes receive significant lymph from mammary glands
parasternal nodes
50
posterior intercostal nodes lymph
from thoracic wall | paravertebral regions
51
posterior intercostal nodes drain into?
thoracic duct right lymphatic duct from upper right regions only
52
diaphragmatic nodes lymph
from diaphragm pericardium upper surface of liver
53
diaphragmatic nodes drain into
parasternal and post. mediastinal nodes
54
the left thoracic duct arises from _______, the union of ?
cisterna chyli union of right and left lumbar trunks
55
the left thoracic duct receives lymph from
mostly from body below diaphram
56
the left thoracic duct empties into the venous system at ?
junction of left internal jugular and left subclavian vein
57
right thoracic duct drain
the right upper body including extremity and head
58
right thoracic duct empties into venous system at ?
junction of right internal jugular vein right subclavian vein
59
sole innervation to diaphragm
phrenic nerves including pain sensations
60
diaphragm
a muscular sheet w/ inferior and superior fascia
61
parietal thoracic fascia
superior diaphragm fascia
62
transversalis fascia
inf. diaphragm fascia
63
sternal origins of diaphragm
xiphoid process
64
costal origins of diaphragm
lower 6 ribs
65
lumbar origins of diaphragm
LV and crura
66
diaphragm contraction
flattens muscle increases thorax volume creating negative pressure in thorax + in abdomen
67
describe the central tendon
Y shaped tendon | attaching diaphragm to LV
68
the central tendon is pierced by 3 openings
caval foramen esophageal hiatus aortic hiatus
69
caval foramen
T8 | inferior vena cava and right phrenic n.
70
esophageal hiatus
T10 | esophagus and vagus n.
71
aortic hiatus
T12 | aorta and greater splanchnic n.

Anatomy Exam 3 (10 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2025 Bold Learning Solutions. Terms and Conditions