Lecture 5 Flashcards
(25 cards)
List the bones of the pectoral region.
a. Clavicle
b. Sternum: Manubrium, body, xiphoid
c. Ribs
d. Scapula
What are the functions of the fascia of the pectoral region?
i. Defines borders
ii. Invests muscles (covers)
iii. Creates potential spaces
List the structures associated with the superficial fascia
i. Platysma
ii. Supraclavicular nerves
iii. Anterior later branches of intercostal nerves
What are the borders of Deltopectoral triangle?
i. Deltoid
ii. Pectoralis Major
iii. Middle 1/3 of clavicle
What are the contents of the deltopectoral triangle?
i. Cephalic Vein
ii. Deltopectoral lymph nodes
iii. Deltoid branch of thoracoacromial Artery
Describe the clavipectoral fascia, list structures that pierce the fascia and describe its relationship with the suspensory ligament of the axilla.
Invests subclavius and pectoralis minor, attaches to clavicle and anterior thoracic wall, cephalic vein, thoracoacromial artery and lateral pectoral nerves pierce it, becomes suspensory ligament of axilla.
The muscles of the pectoral region do what and include what?
These muscles are innervated by the ventral rami of spinal nerves via branches of the brachial plexus Include: i. Pectoralis major ii. Pectoralis minor iii. Subclavius iv. Serratus anterior
Describe the superficial cervical fascia and list contents
i. Platysma muscle
ii. Superficial veins
iii. Cutaneous nerves
Describe the prevertebral fascia and the muscle covered?
a. Covers:
i. Muscles of the lateral triangle
b. Extends:
i. Around anterior surface of the cervical vertebrae across anterior midline.
List the muscles of the lateral cervical triangle
Splenius capitis, levator scapulae, scalenus posterior, scalenus medius, scalenus anterior and omohyoid
What are the nerves and vessels of lateral cervical triangle?
a. Lesser occipital (C2)
b. Supraclavicular (C3, 4)
c. Accessory (CN XI)
d. Occipital artery
e. Transverse cervical artery
f. Subclavian vein (SV)
g. Subclavian artery (SA)
h. External jugular vein (EJV)
Cranial root arises from what?
medulla
Spinal root arises from what and passes through what?
C1-C5 and pass superiorly through foramen magnum and join cranial root.
Spinal and cranial root both exit where?
Jugular foramen and separate.
Spinal root innervates what?
Sternocleidomastoid
trapezius
What are the boundaries of the base of the axilla?
i. Anterior (pectoralis major muscle)
ii. Posterior (latissimus dorsi muscle)
iii. Medial (thoracic wall)
iv. Lateral (humerus)
What are the boundaries of the apex of the axilla?
i. Anterior (clavicle)
ii. Posterior (superior border of the scapula)
iii. Medial (first rib)
What are the great vessels of the axilla?
i. Axillary vein and artery
ii. Cephalic vein and basilic vein
iii. Axillary lymph nodes
What are the nerves of the axilla?
i. Long thoracic nerve
ii. Cords of brachial plexus
iii. Proximal ends of terminal nerves of brachial plexus
What are the muscle(s) of the anterior axillary fold?
Pectoralis major
What are the muscle(s) of the posterior axillary fold?
latissimus dorsi and teres major
What are the muscle(s) of the chest wall in the boundaries of the axilla?
Serratus anterior
What are the muscle(s) of the anterior wall in the boundaries of the axilla?
clavicle, subclavius, pectoralis major and minor
What are the muscle(s) of the posterior wall in the boundaries of the axilla?
scapula, subscapularis, latissimus dorsi, teres major
