Module 7 Muscles - Back Flashcards

1
Q

Serratus Posterior Superior - Innervation

A

T1-T4

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2
Q

Serratus Posterior Superior - Origin

A

Spinous processes of C7-T3

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3
Q

Serratus Posterior Superior - Insertion

A

posterior surfaces of ribs 2-5

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4
Q

Serratus Posterior Superior - actions

A

elevate the ribs during inhalation

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5
Q

Serratus Posterior Inferior - Innervation

A

T9-T12

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6
Q

Serratus Posterior Inferior - Origin

A

Spinous Processes of T12-L3

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7
Q

Serratus Posterior Inferior - Insertion

A

posterior surface of ribs 9-12

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8
Q

Serratus Posterior Inferior - actions

A

depress the ribs during exhalation

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9
Q

External intercostals - innervation

A

thoracic nerve

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10
Q

external intercostals - origin

A

inferior border of the rib above

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11
Q

external intercostals - insertion

A

superior border of the rib below

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12
Q

external intercostals - actions

A

draw the ribs superiorly (increases the space of the thoracic cavity) to assist with inhalation

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13
Q

internal intercostals - origin

A

inferior border of the rib above

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14
Q

internal intercostals - innervation

A

thoracic nerve

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15
Q

internal intercostals - insertion

A

superior border of the rib below

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16
Q

internal intercostals - actions

A

draw the ribs inferiorly (decreasing the space of the thoracic cavity) to assist with exhalation

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17
Q

diaphragm - innervation

A

phrenic nerve from the cervical plexus: C3, C4, C5 (keeps the diaphragm alive)

18
Q

diaphragm - origin

A

inner surfaces of the the lower 6 ribs,
upper 2 or 3 lumbar vertebrae,
inner part of xiphoid process

19
Q

diaphragm - insertion

A

central tendon

20
Q

diaphragm - actions

A

draw down the central tendon of the diaphragm
increase the volume of the thoracic cavity during inhalation

21
Q

rectus abdominis - innervation

A

T5-T12, ventral rami

22
Q

rectus abdominis - origin

A

pubic crest
pubic symphysis

23
Q

rectus abdominis - insertion

A

cartilage of ribs 5-7
xiphoid process

24
Q

rectus abdominis - actions

A

FLEX the vertebral column
TILT pelvis POSTERIORLY

25
Q

external obliques - innervation

A

T5-T12

26
Q

external obliques - origin

A

external surfaces of ribs 5-12

27
Q

external obliques - insertion

A

anterior part of the iliac crest,
rectus sheath to the linea alba

28
Q

external obliques - actions

A

LATERALLY FLEX vertebral column to same side
ROTATE vertebral column to the opposite side
FLEX vertebral column
COMPRESS abdominal contents

29
Q

internal obliques - innervation

A

T7-L1,
iliohypogastric nerve and the ilioinguinal nerve, ventral divisions

30
Q

internal obliques - origin

A

lateral inguinal ligament,
iliac crest,
thoracolumbar fascia

31
Q

internal obliques - insertion

A

internal surfaces of the lower 3 ribs,
rectus sheath to the linea alba

32
Q

internal obliques - actions

A

FLEX, LATERALLY FLEX, and ROTATE vertebral column to the same side,
COMPRESS the abdominal contents

33
Q

transverse abdominis - innervation

A

T7-12, L1, iliohypogastric nerve and the ilioinguinal nerve, ventral divisions

34
Q

transverse abdominis - origin

A

lateral inguinal ligament,
iliac crest,
thoracolumbar fascia,
internal surfaces of the lower 6 ribs

35
Q

transverse abdominis - insertion

A

rectus sheath to the linea alba

36
Q

transverse abdominis - actions

A

COMPRESS abdominal contents

37
Q

Semispinalis Capitis - innervation

A

cervical nerve

38
Q

Semispinalis Capitis - Origin

A

TVPs of C4-T5

39
Q

Semispinalis Capitis - Insertion

A

between the superior and inferior lines of the occiput

40
Q

Semispinalis Capitis - actions

A

EXTEND head and vertebral column