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Anatomy T2 > oct 11 > Flashcards

oct 11 Flashcards

1
Q

muscles of respiration arranged in 3 layers in the spaces between adjacent ribs

A

intercostals

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2
Q

each group of intercostals has how many layers

A

11

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3
Q

what separates the internal and innermost intercostals

A

neurovascular bundle

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4
Q

what is the Fixed attachment of the external intercostals

A

superior (ribs 1-11)

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5
Q

what is the fixed attachment of the internal intercostals

A

inferior (ribs 2-12)

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6
Q

what are the attachment points of the external intercostals

A

superior: ribs 1-11 to inferior: ribs 2-12

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7
Q

what are the attachment points of the internal intercostals

A

superior: ribs 1-11 to inferior: ribs 2-12

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8
Q

what are the three layers of the intercostals

A

external, internal, innermost

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9
Q

what are the attachment points of the innermost intercostals

A

superior: ribs 1-11 to inferior: ribs 2-12

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10
Q

what is the fibre direction of internal intercostals

A

perpendicualr to external intercostals

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11
Q

actions of external intercostals

A

quiet and forced inhalation (rib elevation)

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12
Q

action of internal/innermost intercostals

A

forced expiration

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13
Q

action shared by all intercostals

A

keep intercostal spaces rigid

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14
Q

muscle with 12 pairs, attaches TVPs of C7-T11 to the immediately inferior ribs

A

levator costarum

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15
Q

action of levator costarum

A

rib elevation

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16
Q

muscle that attaches 1st rib and its costal cartilage to the middle third of the inferior surface of the clavicle

A

subclavius

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17
Q

action of subclavius

A

anchors, depresses, and draws the clavicle medially

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18
Q

the principle muscle of respiration

A

(thoracic) diaphragm

19
Q

dome shaped muscle that divides the thoracic cavity and abdominal cavity

A

(thoracic) diaphragm

20
Q

muscle pierced by structures passing between the thorax and abdomen

A

(thoracic) diaphragm

21
Q

top of the diaphragm sits where during expiration

A

around the 4th intercostal space

22
Q

top of the diaphragm sits where during inspiration

A

around the 6th intercostal space

23
Q

the posterior surface of the xiphoid, internal surfaces of lower 6 ribs and their costal cartilages, upper lumbar vertebrae, medial arcuate ligaments, and lateral arcuate ligaments are attachment points for what?

A

the muscular component of the diaphragm

24
Q

the muscular fibres of the diaphragm converge radially into this part of the diaphragm

A

central tendon

25
Q

what kind of tendon is the central tendon of the diaphragm

A

aponeurotic

26
Q

structure of the diaphragm with C-shaped appearance with a central, left, and right “leaflet”

A

central tendon

27
Q

action of the diaphragm

A

moves inferiorly with contraction so that it is flattened

28
Q

during contraction of the diaphragm the central tendon moves inferiorly, increasing the vertical dimension of the thoracic cavity

A

inspiration

29
Q

what muscles assist inspiration during contraction

A

intercostals

30
Q

what is the name for the elevation and lateral movement of the ribs during inspiration, which increases the transverse dimension of the thorax

A

the bucket-handle movement

31
Q

what is the name for the raising and anterior movement of the ribs during inspiration, which increases the anteroposterior dimension of the thorax

A

the pump-handle movement

32
Q

action of the diaphragm relaxing and moving superiorly, along with the elastic recoil of the lungs.

A

expiration

33
Q

name for action in which the diaphragm remains relatively relaxed, accessory muscles of respiration lift the chest up and out

A

apical breathing

34
Q

name for the region below the pelvic cavity

A

perineum

35
Q

floor of the perineum

A

skin

36
Q

roof of the perineum

A

pelvic diaphragm

37
Q

clinical term for hiccup

A

singultus

38
Q

muscles of the pelvic diaphragm

A

2 levator ani muscles and 2 coccygeus muscles

39
Q

actions of pelvic diaphragm

A

support pelvic viscera, helps maintain control of bodily functions

40
Q

part of the skull that contains the brain

A

cranium

41
Q

the frontal, occipital, sphenoid, ethmoid, temporal, and parietal bones make up what structure

A

cranium

42
Q

the line of union in an immovable articulation

A

suture

43
Q

U shaped bone forming the skeleton of the lower jaw and inferior face

A

mandible

44
Q

dome-like superior portion of the cranium

A

calvaria

Anatomy T2 (15 decks)

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