Brainscape's Knowledge GenomeTM

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


See full index

Anatomy > Vertebral Column Muscles > Flashcards

Vertebral Column Muscles Flashcards

1
Q

what is the collective name of the per-vertebral muscles

A

abdominals

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

what is the collective name of the post-vertebral muscles

A

erector spinae

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

what is the action that both the pre and post vertebral muscles perform

A

lateral flexion

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

what is the action of the abdominals?

A

trunk flexion

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

what is the action of the erector spinae

A

trunk extension

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

what are the post vertebral muscles seen as on either side of the vertebral column

A

seen as 2 large columns of muscle on either side of the vertebral column

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

what are the post vertebral muscles surrounded by anteriorly and posteriorly?

A

thoracolumbar fascia

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

what is thoracolumbar fascia

A

layer of fascia that covers the deeper muscles (deep to Latissimus Dorsi) of the back

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

what is the common origin of the erector spinal group?

A

Posterior sacrum and iliac crest

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

what are the 3 Erector Spinae muscles

A

1) spinalis
2) longissimus
3) iliocostalis

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

what is the origin and insertion for spinals

A 
Origin = sacrum and iliac crest
Insertion = spinous processes (sides)
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What is the main action of spinals, Longissimus and iliocostalis

A

trunk extension

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

what is the origin and insertion for Longissimus?

A

Origin: Sacrum and Iliac Crest
Insertion: Transverse Processes

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

What is the origin and insertion for Iliocostalis?

A

Posterior aspect of the ribs

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

what is the order from medial to lateral of the erector spinae?

A

spinalis, longissimus, ilocostalis

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

which erector spinae muscle is palpable behind the ear

A

longissimus

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

what is the importance of the many short muscles that run between vertebrae

A

important for segmental movementsand stability

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

where do the transversospinalis muscles run

A

fill in gaps between spinous processes and transverse processes

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

what are the 3 transversospinalis muscles of the deep muscles of the back?

A

Semispinalis, Multifidus, Rotatores

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

Where do the segmental muscles run?

A

between various segments

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

what are the 3 segmental muscles of the deep muscles of the back?

A

Interspinalis, Intertransversarii, Levatores Costarum

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

What is the origin and insertion for Quadratus Lumborum

A

Origin: iliac crest, iliolumbar ligament and transverse process of L5
Insertion: rib 12 and transverse processes of L1-L4

23
Q

what is the main action(s) of Quadratus Lumborum?

A

Trunk extension (unilaterally), Lateral Flexion (bilaterally), stabilize the 12th rib during inspiration, and stabilize pelvis

24
Q

__________ are the flat, wide muscles that form the anterior and lateral abdominal wall

A

Pre Vertebral Muscles

25
Q

what are the pre vertebral muscles innervated by?

A

intercostal nerves

26
Q

what are the 2 functions of the pre vertebral muscles?

A

1) protection - abdominal contents

2) movement - trunk into flexion

27
Q

how are the pre vertebral muscles arranged?

A

four muscles arranged in 3 layers laterally and one on either side of the midline

28
Q

the 3 lateral (pre vertebral) muscles become _______ medially

A

aponeurotic

29
Q

where do the Pre vertebral muscles meet?

A

linea alba

30
Q

linea alba

A

“white line” - where aponeurosis of one side meets aponeurosis of the other side

31
Q

where does the linea alba run?

A

from xiphoid process to symphysis pubis

32
Q

what are the 4 prevertebral muscles?

A

1) external abdominal oblique
2) Internal abdominal oblique
3) Transversus Abdominis
4) Rectus Abdominis

33
Q

Origin and insertion for external abdominal oblique?

A

Origin: Lower 8 ribs by digitation
Insertion: Linea alba, iliac crest to pubis

34
Q

what is formed by the free edge of the external abdominal oblique?

A

inguinal ligament

35
Q

Origin and Insertion for internal abdominal oblique?

A

Origin: Anterior Iliac crest, inguinal ligament and thoracolumbar fascia
Insertion: Linea alba, lower 4 ribs (costal cartilage)

36
Q

what are the main actions of the obliques

A
  • Rotation (External of one side with Internal of the other side)
  • Lateral flexion (External and Internal of the same side)
37
Q

Origin and Insertion of Transversus Abdominis

A

Origin: Iliac crest, inguinal ligament, thoracolumbar fascia
Insertion: linea alba

38
Q

main action of transversus abdominis

A

stabilize spine, increase intra-abdominal pressure

39
Q

Origin and insertion of rectus abdominis

A

Origin: body of pubis and pubic symphysis
insertion: costal cartilage of ribs 5,6,7, and xiphoid process

40
Q

rectus abdominis is divided by 3 tendinous inscriptions…what are they?

A

1) superiorly at xiphoid process
2) inferiorly at umbilicus
3) another one halfway between

41
Q

what is the main action of rectus abdominis?

A

trunk flexion

42
Q

what is the order from superficial to deep of the 3 lateral prevertebral muscles?

A

external abdominal oblique, internal abdominal oblique, transversus abdominis

43
Q

rectus sheath

A

sleeve of fascia formed by aponeurotic tendons of abdominals

44
Q

which of the prevertebral muscles is enclosed by the rectus sheath?

A

rectus abdominis

45
Q

what are the 5 main actions of the abdominals

A

1) flexion
2) lateral flexion
3) rotation
4) compression
5) Stabilization

46
Q

which abdominal muscles perform flexion

A

rectus abdominis (main), obliques (bilaterally)

47
Q

how is lateral flexion performed

A

action performed only if one side is activated

48
Q

which abdominal muscles perform rotation

A

obliques

49
Q

which abdominal muscles perform compression

A

transversus abdominis (main), all muscles

50
Q

which abdominal muscles perform stabilization

A

all

51
Q

which position puts the least stress of the discs in the vertebral column?

A

neutral position

52
Q

what are strong abdominals and erector spinae needed for?

A

trunk stabilization

53
Q

are partially bent leg, or straight leg sit ups better. why?

A

Partially bent because it targets the right muscles

Anatomy (22 decks)

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