Anatomy #2 Flashcards

1
Q

What does the thorax consist of?

A
12 Thoracic Vertebrae (and their IVDs) 
12 Pairs of ribs 
the sternum
-manubrium 
-body
-xiphoid process
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2
Q

Where do all the ribs articulate with posteriorly?

A

Vertebral column

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3
Q

What are sternabrae?

A

Sternabrae are the four plates of the sternum.

Begin fusing from teens to about 25

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4
Q

What is the most superior portion of the sternum?

A

Manubrium

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5
Q

What is located between the articular facets of clavicular notch where the manubrium attaches to the clavicle?

A

Jugular notch

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6
Q

What is the land mark for the second rib?

A

Sternal Angle

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7
Q

What is the joint called that connects the manubrium to the rest of the sternum and what is it’s aka?

A
manubriosternal joint (sternal angle) 
AKA Angle of Louis
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8
Q

What articulates along the side of the body of the sternum?

A

Costal notches for the articulation with costal cartilage

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9
Q

What is the thin process inferior to the body of the sternum?

A

Xiphoid

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10
Q

At what age does the xiphoid fuse with the rest of the sternum and what is it like at birth?

A

40

Cartilagenous at birth

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11
Q

What is the aka for the body of the sternum?

A

Gladiolus

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12
Q

Which ribs are known as true ribs?

A

The first 7 ribs are know as true ribs

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13
Q

Which ribs are known as the false ribs?

A

Ribs 8-12

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14
Q

Which ribs have a direct connection the sternum?

A

The true ribs or first 7

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15
Q

Which ribs are known as the floating ribs?

A

11 and 12

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16
Q

Which ribs are considered typical ribs?

A

2-10 ribs

17
Q

What are the characteristics of a typical rib?

A

Head, Neck, Tubercle and shaft

18
Q

Which rib is the longest rib?

A

Rib 7

19
Q

What does the head of a typical rib consist of?

A

An superior and inferior facet

20
Q

How many vertebral bodies does the head of a typical rib articulate with?

A

2

21
Q

Where is the neck located on a typical rib?

A

Between the head and the tubercle

22
Q

What does the tubercle of a typical rib articulate with?

A

Articulates with the transverse process of the vertebrae

23
Q

Where is the costal groove located on a typical rib and what passes through it?

A

It is located on the shaft and the costal nerves pass through

24
Q

What does the superior costal facet on the vertebral body articulate with?

A

Articulates with the head of the rib of the same number

25
Q

What does the inferior costal facet on the vertebral body articulate with?

A

articulates with the head of the inferior rib

26
Q

What does the transverse costal facet on the vertebral body articulate with?

A

Articulate with the tubercle of the rib of the same number.

27
Q

What ribs are known as “atypical”?

A

Ribs: 1, 11, 12

28
Q

Which rib is the shortest, broadest and the most curvature of the true ribs?

A

Rib 1

29
Q

What is the difference between Rib 1 and ribs 11-12?

A

Rib 1 has TVP and Ribs 11-12 do not

30
Q

What makes Rib 1 Atypical?

A

Scalene tubercle/ grooves for the subclavian artery and vein.

31
Q

What makes Ribs 11-12 Atypical?

A

floating ribs/ small facet on the head of the rib/ no neck or tubercle

32
Q

What does a typical vertebral body consist of?

A

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