Ch. 4 - Spine & Thorax Flashcards

1
Q

How many vertebrae are in each region of the spine?

A

Cervical: 7
Thoracic: 12
Lumbar: 5
Sacrum: 5 fused
Coccyx: 2-4 fused

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

What feature do thoracic vertebrae have?

A

Costal facets to articulate with ribs

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

True ribs:
False ribs:
Floating ribs:

A

True: 1-7
False: 8-12
Floating 11 & 12

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

Which vertebrae have transverse foramen for the vertebral artery to run through?

A

Cervical

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

What is distinctive about lumbar vertebrae?

A

Large, weight bearing vertebral body

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

Erector spinae group is made up of:

A

Iliocostalis (most lateral)
Longissimus
Spinalis (most medial)

They unilaterally laterally flex vertebral column and bilaterally extend the vertebral column

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

Transversospinalis group

A

Multifidi & rotatores

Actions:
Rotate and extend vertebral column

Origin:
Transverse processes

Insertion:
Spinous processes
(Multifidi span 3-4 vertebrae)
(Rotatores span 1-2)

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

Quadratus lumborum

A

Actions:
Unilaterally elevates pelvis
Laterally flexes vertebral column

Origin:
Posterior iliac crest

Insertion:
12th rib and transverse processes of L1-L4

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

Rectus abdominis

A

Action:
Flex vertebral column

Origin:
Pubic symphysis

Insertion:
Costalcartilage of ribs 5-7 and xiphoid process

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

External obliques (action only)

A

Rotate vertebral column and bilaterally flex vertebral column

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

Internal obliques (action only)

A

Rotate and flex vertebral column

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

Transverse abdominis (action only)

A

Compress abdominal contents

(Deepest abdominal muscle)

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

Diaphragm (action only)

A

Increase volume of thoracic cavity during inhalation

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