Brainscape's Knowledge GenomeTM

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


See full index

Myology 200 > Thoracic and Abdominal Region > Flashcards

Thoracic and Abdominal Region Flashcards

1
Q

Pectoralis major

A

O: Clavicular head – medial 1/2 of the clavicle
Sternal head – sternum and costal cartilage #1-7
I: lateral lip of bicipital groove
A: flexion, adduction, medial rotation & horizontal adduction
N: Medial AND lateral pectoral
Art: thoraco-acromial

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

Pectoralis minor

A 
O: Ribs #3-5
I: Coracoid process of the scapula
A: protraction and depression of the scapula.  Elevation of R3-5
N: Medial AND lateral pectoral
Art: thoraco-acromial
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Serratus Anterior

A

O: Anterior-lateral portion of R1-9
I: Anterior surface of medial border of the scapula
A: Protraction and upward rotation of scapula
N: Long thoracic
Art: Dorsal scapular (subclavian) and lateral thoracic (axillary)

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

Subclavius

A

O: 1st rib
I: middle of inferior aspect of clavicle
A: depression of clavicle; elevation of R1
N: Brachial plexus
Art: suprascapular and branch of axillary

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

External intercostals

A

[Fibres run in same direction as external obliques]
O: inferior aspect of each rib
I: superior surface of rib directly below
A: Elevation of ribs 2-12
N: Intercostal
Art: anterior and posterior intercostal

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

Internal intercostals

A

[Fibres run in same direction as internal obliques]
O: superior border of each rib
I: Inferior surface of rib directly below
A: Depression of ribs 1-11
N: Intercostal
Art: anterior and posterior intercostal

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

Innermost intercostals

A

O: Interior of superior surface of ribs below
I: Interior of inferior surface of ribs above
A: Depresses R1-11 during expiration
N: Intercostal
Art: anterior and posterior intercostal

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

Transverse thoracis

A

O: internal surface of sternum, xiphoid and costal cartilage of R4-7
I: Internal surface of costal cartilages 2-6
A: depresses R2-6 during expiration
N: intercostal
Art: anterior intercostal

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

External obliques

A

FROM aponeurosis

O: pubic bone (crest and tubercle), anterior iliac crest, and abdominal aponeurosis
I: inferior borders of R5-12
A: flexion, lateral flexion and CONTRALATERAL rotation of trunk. Posterior pelvic tilt.
N: intercostal (ventral rami T7-12)
Art: posterior intercostal. Subcostal. Inferior epigastric. Deep circumflex.

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

Internal Obliques

A

TO aponeurosis

O: inguinal ligament. Pelvic crest. Thoracolumbar fascia
I: R10-12 and abdominal aponeurosis
A: flexion, lateral flexion and IPSILATERAL rotation of the trunk. Posterior pelvic tilt.
N: intercostal (ventral rami T7-L1)
Art: posterior intercostal. Subcostal. Inferior epigastric. Deep circumflex.

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

Rectus abdominus

A

O: pubis (symphysis and crest)
I: xiphoid process and costal cartilage of R5-7
A: flexion of trunk. Posterior pelvic tilt
N: intercostal nerves (ventral rami t5-12)
Art: superior and inferior epigastric; posterior intercostal

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

Transverse abdominus

A

O: inguinal ligament. Iliac crest. Thoracolumbar fascia. Costal cartilage.
I: abdominal aponeurosis
A: compression of pelvic cavity
N: intercostal (ventral rami T7-L1)
Art: posterior intercostal. Subcostal. Inferior epigastric. Deep circumflex.

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

Pyramidalis

A

Missing in 20% of people

O: anterior portion of pubic crest
I: distal 1/3 of Linea alba
A: tenses Linea alba during trunk flexion. Posterior pelvic tilt.
N: sub costal
Art: superior and inferior epigastric posterior intercostal.

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

Diaphragm

A

O: lumbar spine (L1-3). R7-12 (internal), their costal cartilage. Xiphoid.
I: central tendon of diaphragm
A: increases volume of thoracic cavity via abdominal breathing (inspiration)
N: phrenic nerve
Art: branches of aorta and internal thoracic

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

Psoas major

A

O: vertebral bodies, TVPs and discs from T12-L5
I: lesser trochanter (merged with iliacis)
A: flexion and lateral rotation of hip. Flexion and lateral flexion of trunk. Anterior pelvic tilt
N: lumbar plexus
Art: lumbar arteries

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

Psoas minor

A

Missing in 40% of people

O: bodies, discs and TVPs of T12-L1
I: pubis (pectineal line)
A: trunk flexion. POSTERIOR pelvic tilt
N: L1 spinal nerve
Art: lumbar arteries, common iliac
17
Q

Iliacus

A

O: anterior surface of internal ilium (upper 2/3 iliac crest, AIIS, sacral ala)
I: lesser trochanter (merges with Psoas major)
A: flexion and lateral rotation of thigh @ hip. Anterior pelvic tilt.
N: femoral nerve
Art: Iliolumbar and obturator

Myology 200 (5 decks)

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