Brainscape's Knowledge GenomeTM

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


See full index

Thoracic Dissection SDL > Body Wall Muscles > Flashcards

Body Wall Muscles Flashcards

1
Q

Which of these extrinsic muscles is being cut through here

A

Serratus ventralis

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

Which muscle (X) has been removed along with the skin and superficial fascia ?

A

Cutaneous trunci

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

What is the function of the cutaneous trunci muscle?

A

responsible for tension and twitching of the skin

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

Identify A and the superficial muscles of the body wall B, C and D in this image.

A

A. Linea alba
B. Recuts abdominus
C. External abdominal oblique
D. Deep pectoral

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

Name muscle A

A

Latissimus dorsi

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

What is the function of the Latissimus dorsi

A

Draws the free limb caudally as in digging /flex the shoulder joint.
Limb retraction and shoulder flexion

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

How does the right axillary artery arise from the aorta

A

Brachiocephalic trunk gives rise to the right subclavian artery- the axillary artery is the continuation of the right subclavian as it curves around the first rib.

Brachiocephalic trunk -> subclavian artery -> axillary artery (@ point of first rib)

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

Identify muscle 1

A

External abdominal oblique

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

Identify muscle 2

A

Recuts abdominus

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

Identify muscle 3

A

Serratus ventralis

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

Identify muscle 4

A

Scalenus

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

Identify muscle 5

A

Recuts thoracis

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

Identify muscle 1

A

External abdominal oblique

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

Identify muscle 2

A

Rectus abdominus

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

Identify muscle 3

A

Serratus ventralis (cervicis and thoracis)

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

Identify muscle 4

A

Scalenus

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

Identify muscle 5

A

Rectus thoracis

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

Identify muscle 6

A

External intercostal

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

Identify muscle 7

A

Serratus dorsalis cranilais

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

Describe the direction of muscle fibres of the external intercostal muscle fibers

A

Fibres run caudoventrally from the caudal border of one rib to the cranial border of the rib caudal to it.

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

What is the function of the external intercostals in respiration?

A

They draw the ribs together

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

Describe the direction of the internal intercostal muscles

A

Fibers run cranioventrally from the cranial border of one rib to the caudal border of the rib cranial to it.

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

What term is used to describe the area (indicated here) where the heart is in direct contact with the body wall?

A

the cardiac notch

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

The term puncta maxima is used to describe the best location to place your stethoscope in order to listen to the sound made by individual heart valves.

Question: Which heart valve would be best heard on the right side of the thorax at position A (the cardiac notch)

A

Right atrioventricular (tricuspid) valve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

What name is given to the cranial reflection of the pleura shown here extending beyond the first rib?

A

Cupula

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

List the key components of the pericardium.

A

Visceral serous pericardium (equiv to epicardium); pericardial cavity, Parietal serous pericardium, middle fibrous pericardium, pericardial mediastinal pleura.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

Which organ lies immediately caudal to the diaphragm

A

Liver

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

What lung lobes are found on the right side of the dog

A

Cranial, middle, accessory and caudal lobes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

The caudal lobe of the right lung (X) and its attachment (Y) to the mediastinum at the level of the oesophagus is demonstrated here. This attachment is formed by the reflection of the visceral pleura at the root of the lung.

Question: What name is given to the resulting structure (Y)?

A

Pulmonary ligament

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Identify blood vessel A

A

Caudal vena cava

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

What name is given to the opening in the diaphragm the cd. Vena cava runs through and continues into the thoracic cavity?

A

Caval foramen

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
32
Q

What name is given to membranous structure B associated with blood vessel A?

A

Plica vena cava

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
33
Q

Identify the white structure (C) running along the caudal surface of blood vessel A

A

Right phrenic nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
34
Q

What is the function of structure (C)?

A

Innervation of the diaphragm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
35
Q

What name is given to this recess in which the accessory lobe is positioned in?

A

Mediastinal recess.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
36
Q

Which mediastinal recess is being illustrated in this image?

A

Costodiaphragmatic recess

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
37
Q

What does A represent?

A

Coronary groove

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
38
Q

Which chambers of the heart are positioned at B and C?

A

B right atrium; C left ventricle (corresponds to the caudal margin of the heart)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
39
Q

What glandular organ lies cranial to the heart at position D (more evident in the juvenile than here

A

thymus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
40
Q

What structure E can be seen travelling over the lateral margin of the heart?

A

Right phrenic nerve

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
41
Q

Identify vessel A

A

Cranial vena cava

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
42
Q

Which major vessels (not shown) merge close to the thoracic inlet to form vessel A.

A

External jugular veins and left and right subclavian veins

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
43
Q

Describe how this vessel arise from the aorta
External jugular veins and left and right subclavian veins

A

the internal thoracic artery is a branch of the right subclavian artery which in turn arises from the brachiocephalic trunk in this species (dog)

44
Q

Identify blood vessel A

A

Azygos vein

45
Q

Does the azygous vein carry arterial or venous blood?

A

Venous blood

46
Q

Approximately where does the trachea bifurcate in the dog?

A

About T5/T6

47
Q

What structures enter and leave the root of the lung along with the primary bronchus at this location?

A

Pulmonary artery and vein and blood supply to the lung via the bronchial artery (which arises variously directly from the aorta)

48
Q

Which important feature of the thoracic cavity is being indicated in this image running along the dorsal surface of the thoracic cavity?

A

Right sympathetic chain

49
Q

Identify structure 1

50
Q

Identify structure 2

A

Oesophageal hiatus

51
Q

Identify structure 3

A

sympathetic trunk

52
Q

Identify structure 4

A

oesophagus

53
Q

Identify structure 5

A

caudal vena cava

54
Q

Identify structure 6

A

plica venae cavae

55
Q

Identify structure 7

A

root of lung and phrenic nerve

56
Q

Identify structure 8

A

right vagus

57
Q

Identify structure 9

A

right azygous vein

58
Q

Identify structure 10

A

cranial vena cava

59
Q

Identify structure 11

60
Q

Identify structure 12

61
Q

Identify structure 13

A

Internal thoracic vessels

62
Q

Identify structure 14

A

vagosympathetic trunk

63
Q

Identify vein 1

A

Right azygous vein

64
Q

Identify vein 2

A

Caudal vena cava (within plica vena cava)

65
Q

Identify vein 3

A

Cranial vena cava

66
Q

One of the branches of the right subclavian artery has been labelled 4 in this image.
Name this vessel

A

Internal thoracic artery

67
Q

What important tubular structure is lying just dorsal to the cranial vena cava within the mediastinum?

68
Q

What important tubular structure is travelling within the mediastinum towards the diaphragm medial to the accessory lobe of the right lung (X)?

A

Oesophagus

69
Q

What special name is given to this pleural reflection? (3)

A

Plica vena cava

70
Q

Which chamber of the heart is located at this position (4)

A

Right ventricle

71
Q

Identify the glandular tissue lying cranial to the heart in the cranial mediastinum (5)

72
Q

Identify structure 1

A

Right Sympathetic chain

73
Q

Identify structure 2

A

Right Phrenic nerve

74
Q

Identify structure 1

A

Longus colli

75
Q

Identify structure 2

76
Q

Identify structure 3

A

internal thoracic vessels

77
Q

Identify structure 4

78
Q

Identify structure 5

A

vessels in paraconal interventricular
groove or the heart

79
Q

Identify structure 6

A

pulmonary trunk

80
Q

Identify structure 7

81
Q

Identify structure 8

A

pulmonary veins entering left atrium

82
Q

Identify structure 9

A

dorsal and ventral right vagal trunks

83
Q

Identify structure 10

84
Q

Identify structure 11

A

sympathetic trunk

85
Q

Identify structure 12

A

right phrenic nerve

86
Q

Identify structure 13

A

caudal mediastinum

87
Q

Identify structure 14

88
Q

Identify the glandular tissue (1) located within the cranial mediastinum

89
Q

Which chamber of the heart would be located at position (2)?

A

Apex = left ventricle

90
Q

Which chamber of the heart would be located at position (3)

A

Right ventricle (cranial margin)

91
Q

What organ or structure lies medial to the mediastinum at (4)

A

Accessory lobe right lung within the mediastinal recess

92
Q

What structure is indicated within the caudal mediastinum at (5)

A

Left phrenic nerve

93
Q

Identify structure 1

94
Q

Identify structure 2

A

Oesophagus

95
Q

Identify structure 2

A

Oesophagus

96
Q

Arrow 4 is pointing to a white structure that is travelling along the lateral to dorsal surface of tubular structure 2. Name this structure precisely.

A

Dorsal branch of vagus nerve

97
Q

Arrow 5 is pointing to the cranial margin of the heart . Which chamber of the heart is located here and name the major blood vessel(s) that enters or leaves this chamber of the heart

A

Right ventricle and pulmonary trunk

98
Q

Identify the various reflections of the visceral pleura indicated by labels 1-3 in this image

A
  1. Mediastinal pleura
  2. Diaphragmatic pleura
  3. Costal pleura
99
Q

Where is the thyroid located

A

In the neck

100
Q

What is the function of the thyroid

A

Endocrine organ. Production of hormones - regulating metabolism

101
Q

Where is the thymus located

A

Between the lungs

102
Q

What is the function of the thymus

A

Production of immune cells
Also secondary endocrine organ in communication with the pituitary

103
Q

Define “Rectus”

A

Latin meaning “straight”

104
Q

What abdominal wall muscle do i always forget

105
Q

What is the function of the scalenus muscle

A

Accessory respiration muscle

Thoracic Dissection SDL (1 decks)

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