Brainscape's Knowledge GenomeTM

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


See full index

Gross Anatomy Unit 2 > Thoracic and Abdominal Walls, Pleura and Lungs 6/7 > Flashcards

Thoracic and Abdominal Walls, Pleura and Lungs 6/7 Flashcards

1
Q

Transverse Thoracis

A

Origin:
Posterior Surface of the Lower Sternum

Insertion:
Internal Surface of Costal Cartilages 2-6

Innervation:
Intercostal Nerve

Action:
Weakly Depress the Lungs

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

Manubriosternal Joint

A

Type:
2nd Cartilaginous Joint (symphysis)

Articulations:
Manubrium + Sternum

Comments:
Fuses in older people and becomes synostosis

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

Interchondral Joint

A

Type:
Synovial Plane joint

Articulation:
Costal Cartilages: (6-7), (7-8), (8-9) Ribs

Ligament:
Interchondral Ligaments

Comment:
9-10 Costal Cartilage is fibrous

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

Intervertebral Joint

A

Type:
Symphysis (2nd Cartilaginous Joint)

Articulations:
Adjacent vertebral bodies bound together by intervertebral discs

Ligaments:
Anterior Longitudinal ligament & Posterior Longitudinal Ligament

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

Costochondral Joint

A

Type:
Primary Cartilaginous Joint (synchondrosis)

Articulation:
Lateral end of Costal Cartilage With sternal end of rib

Ligaments:
Cartilage & Bone; Bound together by periosteum

Comments:
No Movements! (normally)

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

Costovertebral Joint

A

Type:
Synovial plane joint

Articulation:
Head of each rib with superior demifacet of the vertebra below, and also the corresponding vertebra.

Ligaments:
Radiate & Intra-articular ligaments of head of rib

Exceptions:
1st, 11th, 12th, and sometimes 10th only articulate with corresponding vertebrae.

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

Costotransverse Joint

A

Type:
Synovial Plane Joint

Insertion:
Articulation of Tubercle of Rib with transverse process of corresponding vertebrae

Ligaments:
Lateral and superior costotransverse

Exceptions:
11th and 12th Don’t articulate with Transverse Process

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

Sternocostal Joint

A

Type:
1st Rib: Primarily Cartilaginous Joint (Synchondrosis)
2-7th Rib: Synovial Plane Joint

Articulations:
1st Rib: Manubrium + 1st Costal Cartilage
2-7th: Costal Cartilage with sternum

Ligaments:
Anterior & Posterior radiate sternocostal

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

Xiphisternal Joint

A 
Type:
Primary Cartilagnous (synchondrosis)

Articulation:
Body of Sternum + Xiphoid Process

Comment:
Fuse in older people and become synostosis

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

Internal Intercostal muscles (middle layer)

A

Origin:
Inferior Border of Ribs

Insertion:
Superior border of ribs below

Innervation:
Intercostal nerve

Action:
During Forced Respiration:
Interosseous part, Depresses ribs; Interchondral part elevates ribs.

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

External Intercostals (superficial layer)

A

Origin:
Inferior border of ribs

Insertion:
Superior border of ribs below

Innervation:
Intercostal nerve

Action:
Elevates ribs, during forced Inspiration

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

Left Marginal Branch

A

Origin:
Circumflex Branch

Distribution:
Left Ventricle

Anastomose:
IV Branches

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

Circumflex Branch

A

Origin:
Left Coronary Artery

Distribution:
Left Atrium and Ventricle

Anastomose:
Posterior IV branch of left coronary artery

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

Anterior Interventricular (AV) branch

A

Origin:
Left Coronary Artery

Distribution:
Left ventricle & right Ventricle, Anterior (2/3) of IV septum

Anastomose:
Posterior IV branch of Left Coronary Artery

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

Left Coronary Artery

A

Origin:
Left Aortic Sinus

Distribution:
Most of the Left Atrium & Ventricles, IV septum, and AV bundles; May supply AV node.

Anastomose:
Right Coronary Artery

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

Posterior Interventricular (IV) Artery

A

Origin:
Right Coronary Artery

Distribution:
Right and Left Ventricles & Posterior (1/3) of septum

Anastomose:
Anterior IV branches of Left Coronary artery at Apex

17
Q

Right Coronary Artery

A

Origin:
Right Aortic Sinus

Distribution:
Right Atrium, SA & AV nodes, Posterior Part of IV Septum

Anastomose:
Circumflex & Anterior IV branches (left coronary artery)

18
Q

Right Marginal Artery

A

Origin:
Right Coronary Artery

Distribution:
Right Ventricle & Apex of Heart

Anastomose: IV branches

19
Q

Atypical Ribs

A

1st, 2nd, 10th,11, and 12th

20
Q

1st Rib (Atypical)

A

1st rib is broad. The shortest & most sharply curved of the 7 true ribs.

Contributes to the roof of thoracic cavity.

has 2 shallow grooves crossing superior surface for Subclavian vessels and they are separated by the Scalene Tubercles and ridge.

Only has 1 facet

Only articulates with T1.

21
Q

2nd Rib (Atypical)

A

2nd rib is Thinner and more typical.

Has attachments for Serratus Anterior & Posterior Scalene.

Twice the length of the 1st Rib

22
Q

10th, 11th, and 12th Ribs (Atypical)

A

They only have 1 facet.

23
Q

11th and 12 Ribs

A

Short and have NO necks or Tubercles

24
Q

Typical RIbs

A

3rd-9th Ribs

Head with 2 facets that are separated by crest of head. 1 facet articulates with corresponding vertebrae and the other facet articulates with facet above it.

Neck that connects the head with the body (shaft) @ level of Tubercle

Tubercle at the junction of Neck and Body. Has tubercle that is smooth for transverse process of vertebrae (synovial) and tubercle that is rough for nonarticular part of vertebrae (Fibrous).

Body(shaft) that is thin, flat, and curved along its length, most markedly at the angle where the ribs turn Anteriorly.

25
Q

Floating (Free) Ribs

A

11th- 12th Ribs and sometimes 10th Rib.

Have rudimentary (basic) cartilage on anterior end that doesn’t connect even indirectly with sternum

26
Q

False (Vertebrochondral) Ribs

A

8th-10th Ribs

Indirect connection with sternum

Cartilage is on Anterior ends that are joined to the cartilage of the rib superior to them

27
Q

True (Vertebrosternal) Ribs

A

1st-7th Ribs

Attach Directly to sternum anteriorly through their own costal cartilage

28
Q

Intercostals (1-11) Nerve

A

Origin:
Anterior Rami of T1-T11 Nerves

Course:
Run in intercostal spaces between internal and Innermost layers of intercostal muscles

Distribution:
Muscles in & skin over intercostal space; lower nerves supply muscles and skin of anterolateral abdominal wall

29
Q

Sternoclavicular Joint

A

Type:
Saddle Synovial Joint

Articulation: Sternal end of Clavicle with Manubrium and 1st costal cartilage

Ligaments:
Anterior & Posterior Sternoclavicular/ Costoclavicular ligaments

Comment:
Joint Divided into 2 compartments by articular discs

30
Q

Innermost Intercostal Muscles (Outer layer)

A

Origin:
Inferior Border of Ribs

Insertion:
Superior border of ribs below

Innervation:
Intercostal nerve

Action:
During Forced Respiration:
Interosseous part, Depresses ribs; Interchondral part elevates ribs.

31
Q

Posterior Intercostals Artery

A

Origin:
Supreme intercostal arteries (intercostal spaces 1 and 2) and thoracic aorta (remaining intercostal spaces)

Course:
Pass between internal and innermost intercostal muscles

Distribution:
Intercostal muscles and overlying skin, parietal pleura

32
Q

Anterior Intercostals Artery

A

Origin:
Internal thoracic arteries (intercostal spaces 1–6) and musculophrenic arteries (intercostal spaces 7–9)

Course:
Pass between internal and innermost intercostal muscles

Distribution:
Intercostal muscles and overlying skin, parietal pleura

33
Q

Internal thoracic

A

Origin:
Subclavian Artery

Distribution:
By way of anterior intercostal arteries to intercostal spaces 1–6 and musculophrenic arteries to intercostal spaces 7–9

Gross Anatomy Unit 2 (10 decks)

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