Quiz 3: Thoracic Cavity

Question 1

Phrenic Nerve

Answer 1

Somatic

Question 2

Sympathetic Trunk

Answer 2

Autonomic
Sympathetic
Pre & Post-ganglionic

Question 3

Chain Ganglia

Answer 3

Autonomic

Sympathetic

Question 4

Rami Communicans

Answer 4

Autonomic
Sympathetic
Pre & Post-ganglionic

Question 5

Greater/Major Splanchnic Nerve

Answer 5

Autonomic
Sympathetic
Pre-ganglionic

Question 6

Cervicothoracic (Stellate) Ganglion

Answer 6

Autonomic

Sympathetic

Question 7

Vetebral Nerve

Answer 7

Autonomic
Sympathetic
Post-ganglionic

Question 8

Ansa Subclavia

Answer 8

Autonomic
Sympathetic
Pre & Post-ganglionic

Question 9

Middle Cervical Ganglia

Answer 9

Autonomic

Sympathetic

Question 10

Vagosympathetic trunk

Answer 10

Autonomic
Sympathetic & Parasympathetic
Pre-ganglionic

Question 11

Recurrent Laryngeal (R&L)

Answer 11

Somatic

Question 12

Vagus Nerve (R&L)

Answer 12

Autonomic
Parasympathetic
Pre-ganglionic

Question 13

Vagal Branches (D&V)

Answer 13

Autonomic
Parasympathetic
Pre-ganglionic

Question 14

Vagal Trunks (D&V)

Answer 14

Autonomic
Parasympathetic
Pre-ganglionic

Question 15

Intercostal Nerve

Answer 15

Somatic

Question 16

Cardiac Nerve

Answer 16

“Cardiac Plexus”
Autonomic
Sympathetic & Parasympathetic
Pre & Post-ganglionic

Question 17

Costal Parietal Pleura

Answer 17

Lines internal surfaces of ribs; interostal & transversus thoracis m.

Question 18

Mediastinal Parietal Pleura

Answer 18

Lines lateral bounderies of the mediastinum (partition between 2 pleural cavities)

Question 19

Diaphragmatic Parietal Pleura

Answer 19

Lines the cranial surface of the diapghragm

Question 20

Pericardial-Mediastinal Parietal Pleura

Answer 20

Lining over ventral surface of the heart; fat-filled

Question 21

Visceral/Pulmonary Pleura

Answer 21

Lining over the surface of the lungs

Question 22

Parietal Pericardium

Answer 22

Thin, removable layer encasing the heart; fibrous (attached to pericardial-medistinal parietal pleura) & serous layers (shiny, inner)

Question 23

Visceral Pericardium or Epicardium

Answer 23

Layer directly attached to the outer surface of the heart; tightly attached

Question 24

Endocardium

Answer 24

Inner lining of heart

Question 25

Phrenicopericardial Ligament

Answer 25

Continuation of fibrous pericardial pleura to sternum & diaphragm

Question 26

Mediastinum

Answer 26

Theoretical space that contains the middle organs of the thoracic cavity; cranial, caudal and middle divisions

Question 27

What 4 structures are continuous through all three divisions of the mediastinum?

Answer 27

Esophagus Vagus n. Thoracic duct Aorta

Question 28

Name the lobes of the LEFT lung; what impressions are found here?

Answer 28

Cranial lobe (w/ cranial & caudal divisions) Caudal Lobe Impressions: Aortic (mostly caudal), costal

Question 29

Name the lobes of the RIGHT lung; what impressions are found here?

Answer 29

``` Cranial lobe Middle lobe Caudal lobe Accessory lobe Impressions: Cardiac notch (cranial & middle lobes), azygous v. (probably accessory), costal ```

Question 30

What 4 structures make up the carotid sheath?

Answer 30

Internal jugular v. Common carotid a. Vagosympathtic trunk Tracheal duct

Question 31

What structures can be seen on the root of the lung?

Answer 31

Pulmonary a. (BLUE) - branching off Pulmonary Trunk Pulmonary v. (RED) Lobar bronchi - trachea bifurcates into principal bronchi (R&L) and then lobar which go to each lobe of the lungs Bronchial a. (RED) - small & alot

Question 32

Carina

Answer 32

Midline cartilagenous ridge on the inside of the trachea as it bifuracates into principal bronchi

Question 33

What lymph nodes are found at the "V" of the tracheal bifurcation?

Answer 33

Tracheobrochial lymph nodes

Question 34

Blood flow of the heart

Answer 34

Cranial/caudal vena cava > R Atrium > R A-V Valve > R Ventricle > Pulmonary Valve > Pulm trunk > L/R Pulm Artery > L/R Lung > L/R Pulm veins > L atrium > L A-V Valve > L Ventricle > Aortic Valve > Ascending Aorta > Coronary A > Aortic Arch

Question 35

What is the ligament arteriosum?

Answer 35

Tissue that connects that pulmonary trunk to the aorta, just caudal to L subclavian a.

Question 36

What structures are present in the R Atrium?

Answer 36

``` Sinus venarum Auricle Caudal vena cava Opening for coronary sinus Cranial vena cava Right A-V valve Interarterial septum Intervenous tubercle Fossa ovalis Pectinate m. Endocardium Crista terminalis ```

Question 37

What structures are present in the right ventricle?

Answer 37

``` Pulmonary trunk Right A-V valve Parietal & septal cusps Chordae tendinae Papillary muscles Trabeculae carnae Trabecula septomarginalis Conus arteriousus Pulmonary valve & 3 semilunar cusps ```

Question 38

What structures are present in the left atrium?

Answer 38

Left auricle | Valve of foramen ovale (can't see)

Question 39

What structures are present in the left ventricle?

Answer 39

Left A-V valve Parietal & septal cusps Aortic valve & 2 semilunar cusps