Back and Spinal Cord

Question 1

The back extends from where to where?

Answer 1

Extends from base of skill (occiput) to Iliac Crest (L4).

Question 2

Loc of superior angle of scapula.

Answer 2

At about T1-T2.

Question 3

Loc of inferior angle of scapula.

Answer 3

At about T7.

Question 4

Which muscles are responsible for the movement and erect position of the vertebral column?

Answer 4

Erector spine muscles and the transversospinalis muscles.

Question 5

The epaxial musculature of the embryonic myotomes are exclusively innervated by what type of spinal nerves?

Answer 5

Dorsal rami of the spinal nerves.

Question 6

What is the thoracolumbar fascia?

Answer 6

Thickening of deep fascia that invests several muscle groups and continues with the aponeurosis of the latismissus dorsi muscle.

Question 7

What muscles act on appendicular skeleton of the upper limbs?

Answer 7

Latissimus dorsi, trapezius, levator scapulae, rhomboideus major and minor, serratus anterior

Question 8

What muscles acting on the ribs (aka respiration)?

Answer 8

Serratus posterior superior, serratus posterior inferior, lavatories costarum.

Question 9

What innervates superficial back muscles?

Answer 9

Ventral rami of spinal nerves or cranial nerve XI.

Question 10

What innervates deep back muscles?

Answer 10

Dorsal rami of spinal nerves.

Question 11

What are the muscles of the suboccipital triangle?

Answer 11

Rectus capitis posterior major and minor, obliquus capitits superior and inferior

Question 12

What innervates the trapezius muscles?

Answer 12

Spinal accessory nerve, cranial nerve XI. [ventral rami]

Question 13

What innervates latissimus dorsi muscles?

Answer 13

Thoracodorsal (C6-C8). [ventral rami]

Question 14

What innervates the serratus anterior muscle?

Answer 14

Long thoracic nerve (C6-C8). [ventral rami]

Question 15

What innervates the Rhomboids muscles?

Answer 15

Dorsal scapular (C5). [ventral rami]

Question 16

What innervates true back muscles and cutaneous surfaces?

Answer 16

Dorsal rami of spinal nerves. [medial branch of C2=greater occipital nerve, upper half of skin; lateral branch=lower half of skin]

Question 17

What makes up the triangle of auscultation?

Answer 17

Trapezius, latissimus dorsi, scapula.

Question 18

What makes up the triangular space?

Answer 18

Teres major, trees minor, long head of the triceps.

Question 19

What makes up the lumbar triangle?

Answer 19

latissimus dorsi, external abdominal oblique, ilium.

Question 20

What makes the quadrangular space?

Answer 20

trees major, trees minor, long head of the triceps, humerus.

Question 21

At what level does the spinal cord taper off at?

Answer 21

L1/L2 of adult, called the conus maedullaris.

Question 22

Intervertebral disc found in:

Answer 22

C2 - L5

Question 23

Explain meninges:

Answer 23

Dura–>arachnoid–(subarachnoid space, that CSF) –> Pia mater