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HUMB1008 > Thorax and Abdomen Week 2 > Flashcards

Thorax and Abdomen Week 2 Flashcards

1
Q

Function of Throacic walls

A

Protection of heart and lungs, Respiration

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2
Q

Elements of thoracic walls

A

Ribs, Costal Cartilage, Sternum, Thoracic Vertebrae

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3
Q

Unique features of 1st rib

A

shorter and flatter

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4
Q

unique features of 2nd rib

A

thinner/longer than 1st, rough area on superior surface for serratus anterior

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5
Q

features of 11th and 12th ribs

A

shorter, floating, no costal cartilage or tubercle

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6
Q

Ribs site of articulation with vertebrae

A

Superior/Inferior facets

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7
Q

Three components of sternum

A

Manubrium, Body, Xiphoid Process

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8
Q

Which ribs connect to sternum via costal notches`

A

Ribs 1-7

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9
Q

Costal Margin

A

Inferior border of thoracic cage

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10
Q

Sternocostal joints classification

A

Mostly synovial

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11
Q

Costochondral joint classification

A

Cartilaginous

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12
Q

Interchondral joint classification

A

Cartilaginous

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13
Q

Costovertebral joint classification/subcategories

A

Synovial (Joint of head of rib, costotransverse)

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14
Q

Movements of thoracic wall

A

Inspiration/Expiration

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15
Q

Bucket Handle

A

(Normal breathing), ribs move in bucket handle motion, increase lateral dimension of ribcage

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16
Q

Pump Handle

A

Movement of sternum when breathing, increases vertical dimension of ribcage

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17
Q

Costotransverse Joint Function

A

Allows rotation around axis (bucket handle movement), allows up/down movement of rib

18
Q

What prevents posterior movement of rib

A

Transverse process

19
Q

Minor Inspiration Muscles

A

Intercostals, Serratus Posterior superior, Serratus posterior Inferior, Levator Costarum

20
Q

Diaphragm Attachments

A

S: Inner border of costal margin, posterior abdominal wall, superior lumbar vertebrae
D: Central tendon

21
Q

Diaphragm A/NS

A

A: Increase vertical dimension of throax
NS: Phrenic Nerve (c3-c5)

22
Q

Phrenic Nerve Source

A

C3-C5

23
Q

Passive Mechanisms of Quiet Respiration

A

Elastic recoil of lung when diaphragm relaxed
Visceral contents move superiorly when diaphragm relaxes

24
Q

Three Types of Intercostals

A

External, Internal, Innermost

25
Q

IC Attachments

A

S: Inferior border of superior ribs
I: Superior border of inferior ribs

26
Q

Intercostals A/NS

A

A: Majority of fibres elevate ribs during inspiration
NS: Intercostal nerve

27
Q

Serratus Posterior Superior Function

A

Inspiration/Proprioception

28
Q

Serratus Posterior Inferior Fuction

A

Forced expiration, Proprioception

29
Q

Levator Costarum Fuction

A

Inspiration

30
Q

Inspiration Mechanisms (2)

A

Bucket Handle, Diaphragm

31
Q

Rectus Abdominis Attachments

A

S: Xiphoid Process, Costal Cartilages of Ribs 5-7
I: Pubic Symphysis, Pubic Crest

32
Q

Rectus Abdominis Action, Function, NS

A

A: Trunk Flexion, Compress abdominal viscera
F: Stabilise pelvic tilt
NS: Thoraco-Abdominal Nerve

33
Q

External Oblique Attachments

A

L: External surface of ribs 5-12
M: Linea Alba, Pubic Tubercle, Lateral inguinal ligament, anterior iliac crest

34
Q

External Oblique A/NS

A

A: Trunk flexion/rotation, compress/ support abdominal viscera
NS: Thoraco-Abdominal

35
Q

Internal Oblique Attachments

A

L: Thoracolumbar fascia, Anterior Iliac Crest, Lateral Inguinal Ligament
M: Inferior border ribs 10-12, Linea alba, pecten pubis via conjoint tendon

36
Q

Internal Oblique A/NS

A

A: Trunk flexion/rotation, compress/support abdominal viscera
NS: thoraco-abdominal nerve, 1st lumbar nerve

37
Q

Transverse Abdominis Att.

A

L: Lateral inguinal ligament, interior anterior iliac crest, thoracolumbar fascia, lower 6 costal cartilages
M: Linea alba, aponeurosis of internal oblique, pubic crest, pecten pubis via conjoint tendon

38
Q

Transverse Abdominis A/NS

A

A: Compress and support abdominal viscera
NS: Thoraco-Abdominal nerve, 1st lumbar nerve

39
Q

Linea Abla

A

Tendon between rectus abdominis

40
Q

Muscle Action in Trunk Lat. Fexion

A

Ipsilateral contraction of internal/external obliques

41
Q

Muscle Action in Trunk Rotation

A

Ipsilateral contraction of internal oblique
Contralateral contraction of external oblique

42
Q

Other Ab Muscle Actions

A

Forced Expiration (coughing, sneezing)
Vomiturition
Defecation
Flatus
Micturition (Urination)
Parturition (childbirth)

HUMB1008 (12 decks)

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