Lecture 4 - Pectoral Region & Axilla Flashcards
Label the missing parts of the thoracic vertebrae
Label the missing parts of the ribs connecting to the thoracic vertebrae
Can you describe how a rib articulates with its thoracic vertebrae
Head connects to superior costal facet and the tubercle connects to transverse costal facet
Label the missing parts of the sternum and thoracic cage
What is the significance of the xiphoid process
Will feel a costal margin because that is where CPR is performed
Label the missing parts
What are the 2 superficial muscles of the pectoral region
- Deltoid
- Pectoralis Major
What are the 3 deep muscles of the pectoral region
- Subclavius
- Pectoralis Minor
- Serratus Anteior
Label the missing parts of the pectoral region
What nerve innervates the pectoralis Major
Medial and lateral pectoral nerve
What nerve innervates the subclavius
Subclavian nerve
What nerve innervates the pectoralis minor
Medial Pectoral Nerve
What nerve innervates the serratus anterior
Long Thoracic Nerve
What are the 3 movements of the pectoralis major
- Adduction
- Flexion
- Medial rotation
What are the 2 movements of the pectoral minor
- Protraction
- Depression
What is the movement of the subclavius
Depresses clavicle down and forward
What are the 3 movements of the serratus anterior
- Protraction
- Upward Rotation
- Holds scapula against thoracic wall
Overview reference diagram -> Label missing parts
What is the axilla
Pyramid-shaped, fat-filled space (armpit)
Where is the axilla
Between lateral wall of upper thorax and upper limb
What is the purpose of the axilla
Provides passageway for blood vessels and nerves
Function of the axillary artery
Provides blood to upper limb and part of thoracic wall
What are the 3 parts of the axillary artery
Label the missing parts
