Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

RUSVM Anatomy I > Thoracic Cavity > Flashcards

Thoracic Cavity Flashcards

1
Q

What are the skeletal boundaries of the thoracic cavity?

A 
Dorsal: thoracic vertebrae
Ventral: sternebra and costal cartilages
Lateral: ribs and costal cartilages
Cranial: thoracic inlet
Caudal: diaphragm
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is the diaphragm?

A

Provides a muscular tendinous separation between the thoracic and abdominopelvic cavities

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

What are the muscular portions of the diaphragm?

A

R & L costal parts
Sternal part
Lumbar portion with R & L crura

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

What are the tendinous parts of the diaphragm?

A

Central tendon

Right and left crura to lumbar vertebral bodies

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

What are the attachments/coverings of the thoracic side of the diaphragm?

A

Pleural covering: serous membranes of the R and L pleural cavities attach to the surface of the diaphragm
Diaphragmatic line of pleural reflection: junction between the costal pleura and the diaphragmatic pleura
Mediastinal attachment: region where the medial portions of the left and right pleural sacs attach to the diaphragm
Plica vena cavae: a fold of the right mediastinal pleura that envelopes the caudal vena cava and right phrenic nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are the four openings in the diaphragm?

A

Lumbocostal arch
Aortic hiatus
Esophageal hiatus
Caval foramen

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

Lumbocostal arch

A

Area between the crura and vertebrae
Potential area of a hernia
Passage of splanchnic nerve

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

Aortic hiatus

A

Passage of aorta, azygous vein and thoracic duct

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Esophageal hiatus

A

Transmits the esophagus and dorsal/ventral vagus trunks

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Caval foramen

A

Transmits caudal vena cava

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

What are serous cavities?

A
  • Line and enclose body cavities
  • Composed of secretory epithelial layers (mesothelium) and a CT layer
  • protective layer that secretes serous fluid to reduce friction of organs
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are the two types of serous cavities according to location?

A

Parietal: lines cavity wall
Visceral: cover organ surfaces

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

What are three serous cavities within the thoracic cavity?

A

Left pleural cavity
Right pleural cavity
Pericardial cavity

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

Parietal pleura

A

Where the two pleural sacs are adherent to the walls of the thoracic cavity and the mediastinum

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

Endothorasic fascia

A

The “glue” that attaches the pleura to the thoracic walls

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

Pleural cavities

A

Spaces within the pleural sacs

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

Mediastinum

A

Space between the two pleural sacs where they meet medially, continuous with the visceral space

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

What are the four specific regions of the parietal pleura?

A 
Costal pleura
Sternal pleura
Diaphragmatic pleura
Mediastinal pleura
Diaphragmatic line of pleural reflection
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

What are the recesses of the pleura?

A 
Pleura cupula 
Costomediastinal recess
Costodiaphragmatic recess
Mediastinal recess
Lumbodiaphragmatic recess
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Pleural cupula

A

Located at the thoracic inlet where the pleura reflects from the costal wall to the cranial mediastinum

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

Costomediastinal recess

A

At junction where the costal pleura reflects from the ventral thoracic wall and extends dorsally bilaterally

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

Costodiaphragmatic recess

A

Junction where the costal pleura reflects onto the surface of the diaphragm

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

Mediastinal recess

A

Located between the R mediastinal pleura and the plica vena cavae (accessory lobe of right lung is located here)

24
Q

Lumbodiaphragmatic recess

A

Region where pleura extends ventrally from the caudal and dorsal thoracic walls to the crura of the diaphragm

Spans the lumbocostal arch so there isn’t a true opening

25
Q

Fibrous pericardium

A

Dense CT sac

26
Q

What does the cranial mediastinum continue as?

A

The cervical visceral space

27
Q

What are the dorsal and ventral boundaries of the cervical visceral space?

A

Dorsal: longus capitis & longus coli
Ventral: sternocephalicus & sternothyrohyoideus

28
Q

What are the contents of the cervical visceral space?

A 
Esophagus 
Trachea
Thyroid and parathyroid glands
Recurrent laryngeal nerves
Tracheal lymph nodes
Carotid sheath
     Common carotid artery
     Vagosympathetic trunk
      Internal jugular vein
29
Q

What are the contents of the mediastinum?

A 
Trachea
Thymus
Esophagus 
Phrenic nerves
Vagus nerves
Vagal trunk
Paravertebral chain of ganglia
Heart
Aorta
Pulmonary trunk
Right azygous vein
Thoracic duct
Tracheobronchial lymph node
30
Q

What are the three components of the pericardium?

A

Parietal pericardium
Fibrous pericardium
Pericardial mediastinal pleura

31
Q

What are the components of the conducting system?

A

Trachea

Bronchial tree

32
Q

What is the structure of the trachea?

A

Comprised of incomplete cartilaginous rings that are connected by tracheal ligaments
Trachealis muscle completes the ring dorsally

33
Q

Carina

A

This is the partition between the right and left principal bronchi at their origin from the trachea

34
Q

Principal bronchi

A

Left and right originate where the trachea bifurcates

35
Q

Lobar bronchi

A

Branch from the principal bronchi and supply the lobes of the lung

36
Q

Segmental bronchi

A

Branch from the lobar bronchi and supply bronchopulmonary segments

37
Q

Bronchioles

A

Branches of the segmental bronchi which ultimately terminate as respiratory bronchioles (beginning of exchange system)

38
Q

What makes up the respiratory bronchioles?

A

Alveolar duct
Alveolar sac
Alveolus

39
Q

What is the functional blood supply of the lungs?

A

Pulmonary arteries and veins

40
Q

What is the nutritive supply of the lungs?

A

Bronchoesophageal artery and azygous vein

41
Q

How many lobes does the left lung have?

A

Carnivores: cranial (divided), caudal
Ruminants: cranial (divided), caudal
Horse: cranial and caudal lobe

42
Q

How many lobes are in the right lung?

A

Carnivores: cranial, middle, caudal, accessory
Ruminants: divided cranial, middle, caudal, accessory
Horse: cranial, caudal, accessory (no middle)

43
Q

Cardiac notch

A

Notch in the lungs where the heart rests

44
Q

Where do you listen to the heart on the left side in relation to the notch?

A

Canine: between 3 & 4 intercostal space
Ruminants: same
Horse: between the 3 & 6 spaces

45
Q

Where do you listen to the heart in relation to the cardiac notch on the right side?

A

Canine: within the 4 intercostal space, extends to 5
Ruminants: between 3 & 4
Horse: same

46
Q

Hilus

A

Area of lung that is perforated by vessels, nerves and bronchi

47
Q

Pulmonary ligament

A

Double layer of connecting pleura extending from mediastinal pleura to the visceral pleura of lungs

48
Q

What is the nerve supply of the lungs?

A

Autonomic (SNS & PSNS)

Sensory (stretch receptors)

49
Q

What are the four lymph nodes associated with the lungs?

A

Left tracheobronchial lymph node
Right tracheobronchial ln
Middle tracheobronchial ln
Pulmonary ln

50
Q

What are the branches of the aorta?

A

Ascending
Aortic arch
Descending

51
Q

What makes up the brachiocephalic trunk?

A

Left common carotid artery
Right common carotid artery
Right subclavian artery

52
Q

What are the four branches of the subclavian artery?

A

Vertebral artery
Costocervical trunk
Superficial cervical artery
Internal thoracic artery

53
Q

What makes up the descending aorta?

A

Bronchoesophageal artery

Dorsal intercostal arteries

54
Q

What does the costocervical trunk supply?

A

The first three dorsal intercostal spaces and muscles of the neck

55
Q

What does the vertebral artery supply?

A

Supplies the brain

56
Q

What does the superficial cervical artery supply?

A

Structures of the neck

57
Q

What are the species differences of the azygous vein?

A

Dog and horse: right only
Pig: left only
Ruminants: right and left

RUSVM Anatomy I (9 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions