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Anatomy > Anatomy Back Muscles Week 1 > Flashcards

Anatomy Back Muscles Week 1 Flashcards

1
Q

Origin of Trapezius Muscle

A

Posterior skull (Occipital), Posterior neck soft tissue, spinous processes of lower neck, and thoracic vertebrae

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2
Q

Trapezius Insertion

A

Clavicle, acromion+spine of scapula

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3
Q

Trapezius Innervation

A

Spinal accessory nerve (CN XI)

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4
Q

Trapezius Function

A

Shoulder elevation/ depression
Retracts scapula
Rotates glenoid to face superiorly (Helps us reach up)

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5
Q

Trapezius Notes

A

Different parts do different things, pay attention to fiber orientation

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6
Q

Latissimus Dorsi Origin

A

Inferior ribs, thoracolumbar fasica, spinous processes of lower thorax

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7
Q

Latissimus Dorsi Insertion

A

Intertubercular groove of humerus

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8
Q

Latissimus Dorsi Innervation

A

Thoracodorsal nerve

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9
Q

Latissimus Dorsi Function

A

Extends, adducts, and medially rotates arm at shoulder

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10
Q

Rhomboid Major & Minor Origin

A

Spinous processes of lower neck, upper thorax

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11
Q

Rhomboid Major & Minor Insertion

A

Medial border of scapula from spine to inferior angle

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12
Q

Rhomboid Major & Minor Function

A

Retract scapula and rotate glenoid to face inferiorly

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13
Q

Rhomboid Major & Minor Innervation

A

Dorsal scapular nerve

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14
Q

Rhomboid Major and Minor Note

A

Rhomboid minor is slightly more superior than Major

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15
Q

Levator scapulae Orgin

A

Posterior aspect of upper cervical transverse processes

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16
Q

Levator Scapulae Insertion

A

Medial border of scapula superior to spine of scapula

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17
Q

Levator Scapulae Function

A

Elevates scapula and rotate glenoid to face inferiorly

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18
Q

Iliocostalis Origin

A

Posterior iliac crest and sacrum, sacral and lumbar spinous process

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19
Q

Iliocostalis Insertion

A

Ribs and cervical transverse processes

20
Q

Iliocostalis innervation

A

Posterior rami of spinal nerves

21
Q

Iliocostalis Function

A

Uliateral: Laterally flex vertebral column to contracting side

Bilateral: Extend vertebral column and head

22
Q

Longissimus Orgin

A

Posterior iliac crest and sacrum, sacral, and lumbar spinous processes

23
Q

Longissimus Insertion

A

Ribs and inferior skull on posterior side (temporal bone)

24
Q

Longissimus Innervation

A

Posterior rami of spinal nerves

25
Q

Longissimus Function

A

Unilateral: laterally flex vertebral column to contracting side

Bilateral: Extend vertebral column and head

26
Q

Spinalis Origin

A

Posterior iliac crest and sacrum, sacral, lumbar, and spinous processes

27
Q

Spinalis Insertion

A

Spinous processes in the thorax and neck

28
Q

Spinalis Innervation

A

Posterior rami of spinal nerves

29
Q

Spinalis Function

A

Unilateral: Laterally flex vertebral column to contracting side

Bilateral: Extend vertebral column and head

30
Q

Levator Scapulae Innveration

A

Dorsal scapular nerve and ventral rami of cervical spinal nerves

31
Q

What is this muscle?

A

rhomboid minor

32
Q

What is this muscle?

A

Levator Scapulae

33
Q

What is this muscle

A

Rhomboid Major

34
Q

What is this muscle’s origin?

A

Posterior aspect of upper cervical transverse process

35
Q

What is this muscle’s insertion?

A

Medial border of scapula superior to the scapular spine

36
Q

What is this muscle’s function & innervation?

A

Elevates scapula & rotate glenoid to face inferiorly

Dorsal scapular nerve & ventral rami of cervical spine nerve

37
Q

What is this muscle’s origin?

A

Spinous process of lower neck, upper thorax

38
Q

What is this muscle’s insertion?

A

Medial border of scapula from spine to inferior angle

39
Q

What is this muscle’s function & innervation?

A

retract scapula & rotate glenoid to face inferiorly

40
Q

What is this muscle?
Name it’s origin & insertion

A

Spinalis.

O: posterior iliac crest & sacrum, sacral, lumbar, and spinous processess

I: spinous process in the thorax and neck

41
Q

What is this muscle’s innervation & function?

A

Innervation: posterior rami of spinal nerves
Function: Laterally flex vertebral column to contracting side; extend vertebral column and head

42
Q

What is this muscle? Name its origin & insertion

A

Iliocostalis
O: posterior illiac crest & sacrum, sacral, and lumbar spinous processes

I: ribs and cervical transverse processes

43
Q

What is this muscle’s function & innervation

A

Function: Laterally flex vertebral column to contracting side; extend vertebral column and head
Innervation: Posterior rami of spinal nerves

44
Q

What is this muscle? Name its origin & insertion?

A

Longissimus

O: Posteiror iliac crest and sacrum, sacral and lumbar spinous processes

I: ribs and inferior skull on temporal bone

45
Q

What is this muscle’s innervation & function?

A

Innervation: Posterior Rami of spinal nerves
Function: laterally flex vertebral column to contracting side; extend vertebral column and head

Anatomy (25 decks)

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