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Gross Anatomy One > Muscles > Flashcards

Muscles Flashcards

1
Q

Primary Function
External Intercostal

A

Elevating the ribs

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2
Q

Originate + insert
External Intercostal

A

Lower border of the rib
superior border of the rib below

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3
Q

Innervation
External Intercostal

A

Intercostal (T1-11)`

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4
Q

Primary Function
Internal Innercostal

A

Interosseous part depresses ribs
interchondral part raises the ribs

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5
Q

Originate + Insert
Internal Intercostal

A

Lateral edge of coastal groove
superior surface rib below

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6
Q

Innervation
internal intercostal

A

Intercostal Nerves (T1-11)

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7
Q

Function
inntermost intercostal

A

Interosseous part reduces thoracic volume
interchodnral elevates ribcage (Con elevates anger)

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8
Q

what does interchondral mean

A

synovial joints between the tips of adjacent coastal cartilages of ribs 6 - 10

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9
Q

What does interosseous mean

A

situates between bones

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10
Q

Origins and inserts
Innermost Intercostal

A

Medial edge of coastal groove and insterts to superior surface of rib below

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11
Q

Innvervation
Innermost Intercostal

A

Intercostal nerves T1 - 11

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12
Q

Function
Transversus thoracis

A

Weakly depresses the ribs

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13
Q

Origin and inserts
Transversus thoracis

A

the posterior surface of the inferior sternum
coastal cartilages 2 - 6

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14
Q

Innervation
Transversus thoracis

A

Intercostal (T2-6)

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15
Q

Function
Subcostal

A

Despress the ribs

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16
Q

Innervation
subcostal

A

intercostal nerve

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17
Q

origin
subcostal

A

inferior surface of the lower ribs near the angle rib
superior order a few ribs down

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18
Q

Function
external oblique

A

Contralateral rotation of the torso

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19
Q

Origin and insertion
external oblique

A

ribs 5 - 12 and inserts iliac crest and pubic tubercle

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20
Q

Innervation
external oblique

A

Thoracadobimal nerves (T7-11)

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21
Q

Function
internal oblique

A

Bilateral contraction compresses the abdomen

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22
Q

Origin and insertion
Internal oblique

A

Inguinal ligament iliac crest lumbodorsal fascia and ribs 10-12

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23
Q

Innervation
internal oblique

A

Thoracabdominal nerves (T7-11)

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24
Q

Function
Tranversus Abomdinis

A

Compression of abdominal contents

25
Q

Origin
Tranversus Abomdinis

A

Inguinal ligament and iliac crest
coastal cartilages 7-12
thoracolumbar fascia and onto conjiont tendon

26
Q

Innervation
Tranversus Abomdinis

A

Thoracoabdominal nerves (T7-11)

27
Q

Blood Supply
Tranversus Abomdinis

A

lower posterior intercostal arteries

28
Q

function
rectus abdominis

A

Compression of the abdominal viscera

29
Q

Origin and inserts
rectus abdominis

A

crest of pubis bone
inserts onto xiphoid process of the sternum

30
Q

innovation
rectus abdominis

A

thoracoabdominal nerves (T7-11)

31
Q

Function
Pyramidalis

A

tenses the linea alba of the rectus abdominis

32
Q

origins and inserts
Pyramidalis

A

pubic crest and pubic symphysis into linea alba

33
Q

innveration
Pyramidalis

A

subcostal nerve (T12)

34
Q

Function
serratus Anterior

A

Rotation of the scapula

35
Q

Origin and inserts
serratus Anterior

A

lateral apsect of ribs 1-8
coastal surface of scpula

36
Q

Innervation
serratus Anterior

A

long thoracic nerve

37
Q

Blood Supply
serratus Anterior

A

Thoracodrosal artery

38
Q

Function
pectoralis Major

A

Adducts upper limb

39
Q

Attaches
pectorals major

A

everywhere

40
Q

innovation
pectoalis major

A

lateral and medial pectoral nerves

41
Q

Function
Pectoalis Minor

A

stabilises the scapula

42
Q

Attaches
pectoalis minor

A

3 - 5 ribs and inserts into corcaoid process of the scapula

43
Q

Innovation
pectoalis minor

A

medial pectoral nerves

44
Q

function
quadratus Lobrum

A

extension and lateral flexion of the vertebral column

45
Q

Innervation
quadratus Lobrum

A

Anterior rami of T12 - L4

46
Q

insertion and origins
quadratus Lobrum

A

iliac crest , iliolumbar fibres travel supermoedlaly transverse process of L1 - 4

47
Q

Function
Iliacus

A

flexion of the hip joint

48
Q

Innovation
iliacus

A

femoral nerves

49
Q

Origin and inserts
iliacus

A

iliac fossa
trochanter of the femur

50
Q

Function
posaos Major

A

flexion of the hip

51
Q

Innveration
psoas major

A

anterior rami L1 - L3

52
Q

Function
Posaso Minor

A

Flexion of the hip

53
Q

Innveration
psoas minor

A

feoral nerve L2-4

54
Q

Function
all the scalene muscles

A

elevation of the ribs

55
Q

innveration
all the scalenes

A

Anterior C3-7
Middle Scalene C4-7
Posterior C5-7

56
Q

Innveration
Serratus posterior superior

A

Intercostal nerves 2-5

57
Q

innveration
Serratus posterior inferior

A

anterior rami T9-12

58
Q

Function
Serratus posterior

A

depresses the ribs

Gross Anatomy One (9 decks)

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