the back

Question 1

layers of the back

Answer 1

epidermis and dermis make up skin

• superficial fascia: aka hypodermis or subcutaneous connective tissue- has fat adipose
• deep fascia: aka epimysium, dense connective tissue that covers each muscle

Question 2

surface anatomy of the back

Answer 2

• external occipital protuberance

- trapezius muscle also attaches from spinous process of C7 to T12 and at external occipital protuberance

Question 3

superficial fascia

Answer 3

• skin (epidermis and dermis) for thermoregulation and the hpodermis has a lot of fat asa protective layer

Question 4

deep fascia

Answer 4

epimysium, wrap around muscle, have more organized, collagen fibers

Question 5

Lattismus dorsi

Answer 5

origin: spinous processes of T7 to L5
- illiac crest of sacrum
- thracolumbar fascia
- inferior angle of scapula
- lower 3 of four ribs

Insertion: intertubercal of humerus

Question 6

rhomboids major

Answer 6

origin: spinous processes of T2-T5 vertebra
Insertion: medial border of scapula

Question 7

levator scapulae

Answer 7

origin: transverse processes of the c1- c4
insertion: medial border of the scapula

Question 8

trapezius

Answer 8

origin: spinus processes of C7 to T11
Insertion: acromion and spine of scapula, lateral clavical

Question 9

back muscles

Answer 9

most receive innervation from the brachial plexus.

trapezius muscle innervated by CN 11 spinal accessory nerve

Question 10

triangle of auscultation

Answer 10

made by border of trapezius, rhomboid , latissimus dorsi, make respiratory sounds easy to see

Question 11

intermediate muscles

Answer 11

[respiration]- serratus posterior superior

- serratus posterior inferior

Question 12

deep muscles

Answer 12

[maintain posture] splenus capitis, spenus cervicis, semisplinallis capitis, erector spinae
innervation by dorsal posterior rami of spinal nerves

Question 13

suboccipital region

Answer 13

occipital artery on the outside and greater occipital nerve on the inside