posterior axio-apendicular muscles

Question 0

what is the medial attachment for the trapezius?

Answer 0

the medial third of the superior nuchal line, external occipital protuberance, nuchal ligament, spinuous processes of C7-T12

Question 1

what are the threed parts of the trapezius and wha do they do?

Answer 1

descending (superior): elevates scapula
middle part: retracts scapula
ascending (inferior) part: depresses scapula

Question 2

What is the lateral attachment for the trapzeius?

Answer 2

the lateral third of the clavicle, acromion and spine of scapula

Question 3

what is the innervation of the trapezius?

Answer 3

spinal accessory nerve 11, and C3, C4 spinal nerves

spinal accesory nerves c3, c4 and c11

Question 4

what are the main actions of the trapezius?

Answer 4

deacending(superior) elevates scapula
middle retracts scpaula
ascending (inferior) depresses scapula

descending and ascending parts rotate glencoid cavity superiorly

Question 5

what is the medial attachment for the latissimus dorsi?

Answer 5

spinuous process of inferior thoracic vertebrae, thoracolumbar fascia, illiac crest and inferior 3 or 4 ribs

Question 6

what is the lateral attachment for the latissimus dorsi?

Answer 6

floor of intertubucular sulcus of humerus

Question 7

what is the innervation for the latissimus dorsi?

Answer 7

Thoracodorsal nerve (6, c7, and c8)

Question 8

what are the main actions of the latissimus dorsi?

Answer 8

extends, adducts and medially rotates shoulder joint.

Question 9

what is the medial attachment for the levator scapula?

Answer 9

posterior tubercles of c1-c4 vertebrae

Question 10

what is the lateral attachment for the levator scapula?

Answer 10

medial border of scapula superior to root of spine

Question 11

what innervates the levator scapula?

Answer 11

the dorsal scapula (C5) and cervical (C3, C4) spinal nerves

Question 12

what is the main action of the levator scapula?

Answer 12

the levator scapula elevates the scapula and tilts its glenoid cavity interiorly by rotating the scapula

Question 13

what is the medial attachment for the rhomboid major and minor?

Answer 13

rhomboid major: spinuous processes of T2-T5

rhomboid minor: nuchal ligament; spinuous process of C7 and T1 vertebrae

Question 14

what is the lateral attachment for the rhomboid major and minor?

Answer 14

minor: triangular area at medial end of scapular spine
major: medial border of scapula from level of spine to inferior angle

Question 15

what is the innervation for the rhomboid minor and rhomboid major?

Answer 15

dorsal scapular nerve (c4,c5)

Question 16

what are the main actions of the rhomboid minor and rhomboid major?

Answer 16

retract scapula and rotate it to depress glenoid cavity; fix scapula to thoracic wall