Soft tissues of the back Flashcards

1
Q

Bounded by the upper border of the latissimus dorsi, the lateral border of the trapezius, and the medial border of the scapula.

A

Triangle of Auscultation

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2
Q

What formed the floor of Triangle of Auscultation?

A

rhomboid major

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3
Q

Formed by the iliac crest, latissimus dorsi, and posterior free border of the external oblique abdominal muscle

A

Lumbar Triangle (of Petit)

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4
Q

What formed the floor of Lumbar Triangle (of Petit)?

A

internal oblique abdominal muscle

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5
Q

The site where breathing sounds can be heard most clearly using a stethoscope invented by Laennec in 1816

A

Triangle of Auscultation

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6
Q

It may be the site of an abdominal hernia.

A

Lumbar Triangle (of Petit)

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7
Q

Invests the deep muscles of the back, having an anterior layer that lies anterior to the erector spinae and attaches to the vertebral transverse process, and a posterior layer that lies posterior to the erector spinae and attaches to the spinous processes.

A

Thoracolumbar (Lumbodorsal) Fascia

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8
Q

Very strong fibrous tissue in posterior lower back

A

Thoracolumbar (Lumbodorsal) Fascia

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9
Q

Serves as an attachment of the latissimus dorsi, internal oblique muscle and transverse abdominis muscles

A

Thoracolumbar (Lumbodorsal) Fascia

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10
Q

Arises from the thyrocervical trunk of the subclavian artery and divides into the superficial and deep branches

A

Transverse Cervical Artery

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11
Q

Arises from the external carotid artery, runs deep to the sternocleidomastoid muscle, and lies on the obliquus capitis superior and the semispinalis capitis.

A

Occipital Artery

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12
Q

Consists of cranial portion that joins the vagus nerve and a spinal portion that runs deep to the sternocleidomastoid, lies on the levator scapulae, and passes deep to the trapezius

A

Accessory Nerve

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13
Q

what do the Accessory Nerve innervate?

A

sternocleidomastoid(SCM)

trapezius muscles

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14
Q

Derived from the ventral primary ramus of the fifth cervical nerve, runs along with the deep branch of the transverse cervical artery, and supplies the rhomboid major and minor and levator scapulae muscles

A

Dorsal Scapular Nerve (C5)

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15
Q

What does the Dorsal Scapular Nerve (C5) innervate?

A

rhomboid major and minor

levator scapulae muscle

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16
Q

Derived as a medial branch of the dorsal primary ramus, the second cervical spinal nerve

A

Greater Occipital Nerve (C2)

17
Q

Crosses obliquely between the obliques inferior and the semispinalis capitis, pierces the semispinalis capitis and the trapezius, and supplies cutaneous innervation in the occipital region

A

Greater Occipital Nerve (C2)

18
Q

What does the Greater Occipital Nerve (C2) innervate?

A

supplies cutaneous innervation in the occipital region,

May innervate the semispinalis capitis and communicates with the suboccipital and third occipital nerves

19
Q

Derived from the dorsal primary ramus of the third cervical spinal nerve

A

Third (Least) Occipital Nerve (C3)

20
Q

What does the Third (Least) Occipital Nerve (C3) innervate?

A

supplies cutaneous innervation in the occipital region

21
Q

Derived from the ventral primary ramus of the second cervical spinal spine

A

Lesser Occipital Nerve (C2)

22
Q

what does Lesser Occipital Nerve (C2) innervate?

A

the scalp behind the auricle

23
Q

what consists the Superficial Layer: Spinotransverse Group?

A

splenius capitis

splenius cervicis

24
Q

What are the functions of the Spinotransverse group?

A

Extend, rotate and laterally flex the head and neck

25
Q

what consists the Intermediate Layer: Sacrospinalis Group?

A

erector spinae (sacrospinalis)

  • iliocostalis
  • longissimus
  • spinalis
26
Q

What are the functions of the Sacrospinalis group?

A

Extend, rotate, and laterally flex the vertebral column and head

27
Q

What are postural muscles?

A

Sacrospinalis group

28
Q

In terms of back muscles, it is a great stabilizer of the back area to maintain an erect posture.

A

Sacrospinalis group/ erector spinae

29
Q

what consists the Deep Layer: Transversospinalis Group?

A

semispinalis (capitis, cervicis, thoracis)
multifudus
rotators

30
Q

What are the functions of the Transversospinalis group?

A

Extend and rotate the head, neck, and trunk

31
Q

Innervated by the dorsal primary rami of the spinal nerves

A

Segmental Muscles

32
Q

Run between the adjacent spinous processes and aid in extension of the vertebral column

A

Interspinales

33
Q

Run between adjacent transverse processes and aid in lateral flexion of the vertebral column

A

Intertransversarii

34
Q

Extend from the transverse processes to ribs, elavate the ribs, and are innervated by the intercostal nerves

A

Levatores Costarum (Longus and Brevis)