Lab list 1 misc.

Question 1

Answer 1

Posterior (trunk) midline

Question 2

Answer 2

Paravertebral line

Question 3

Answer 3

Scapular line

Question 4

Answer 4

Anterior axillary line

midaxillary line

posterior axillary line

Question 5

Answer 5

C7 vertebra prominence

Question 6

Answer 6

T3: spine of scapula

T7: inferior angle of scapula

Question 7

Answer 7

T12: attached to 12th rib, has slightly smaller spinous process than L1

Question 8

Question 9

Answer 9

S2 spinous process: at level of depressions (dimples)

Question 10

Answer 10

Sacral triangle, rhombus of michaelis

Question 11

Answer 11

Suprascapular region

Question 12

Answer 12

Scapular region

Question 13

Answer 13

Interscapular region

Question 14

Answer 14

Infrascapular region

Question 15

Answer 15

Lateral pectoral region

Question 16

Answer 16

Lumbar region

Question 17

Answer 17

Sacral region

Question 18

Answer 18

Gluteal region

Question 19

Answer 19

Anal region

Question 20

Answer 20

Vertebral region

Question 21

Answer 21

Deltoid region

Question 22

List the superficial muscles of the back

Answer 22

Trapezius

latissimus dorsi

Question 23

List intermediate muscles in the back

Answer 23

rhomboid major and minor

serratus posterior inferior and serratus posterior superior

levator scapula

Question 24

Answer 24

Thoracolumbar fascia

anterior layer covers the quadratus lumborum muscle and is thickened superiorly, forming the lateral arcuate ligament; middle and posterior layers envelop the erector spinae muscles of the back.

Question 25

Triangle of auscultation

Answer 25

Dorsally on each side of the trunk, the triangle of auscultation is the area bounded by:

medially: the lateral border of the inferior part of trapezius
laterally: the vertebral border of the scapula
inferiorly: the superior border of latissimus dorsi

Increasing the size of these boundaries by drawing the scapulae forward, for example by folding the arms across the chest, uncovers the deeper structures. They are, from superficial to deep:

the rhomboid muscles

the sixth and seventh ribs bounding the seventh intercostal space

pleura

lung

Therefore with relatively few and thin muscular layers, the triangle provides a particularly favourable site for auscultation of breath sounds.

Question 26

Winged scapula

Answer 26

result of damage to the long thoracic nerve which innervates serratus anterior which has the function of holding the scapula against the thoracic wall