Flashcards in Chapter 3 Thorax and Ribcage Deck (45)
T1-3 rule of 3's?
SP is located at level of corresponding TP
T4-6 rule of 3's?
SP is located one-half a sefment below the corresponding TP
T7-9 rule of 3's?
SP is located at level of TP of vertebrae below
Follows same rules as T7-9?
Follows same rules as T5-7?
Follows same rules as T1-3?
Spine of scapula is at what level?
Inferior angle of scapula corresponds with what?
Spinous process of T7
Sternal notch is at what level?
Sternal angle (angle of Louis) attaches to which rib and what level is it?
2nd rib, level of T4
What is the main motion of the thoracic spine?
Upper and middle thoracic spine motion?
Rotation > flexion/extension > SB
Lower thoracic spine motion?
Flexion/extension > SB > rotation
Primary muscles of respiration?
Rib attachments for diaphragm?
Ribs 6-12 b/l
Vertebral attachments for diaphragm?
Anterior attachment for diaphragm?
Action of intercostal muscles?
Elevate ribs during inspiration and prevent retractions during inspiration
Secondary muscles of respiration?
Scalenes, pec minor, serratus anterior/posteiror, quadratus lumborum, latissimus dorsi
What makes a typical rib typical?
Contains Shaft, Head, Angle, Neck, Tubercle (SHANT)
What is the difference bt head and tubercle of rib?
Head--articulates with vertebra above and corresponding vertebra; tubercule--articulates with corresponding TP
1, 2, 11, 12 (ribs with "1" and "2"), sometimes 10
Reason why rib 1 is atypical?
Articulates only with T1 and has no angle
Reason why rib 2 is atypical?
Has large tuberosity on shaft for serratus anterior
Reason why ribs 11 and 12 are atypical?
They articulate only with corresponding vertebrae and lack tubercles
Reason why rib 10 may be atypical?
May articulate only with T10
1-7 (attach to sternum thru costal cartilages)
8-12 (connected by its costal cartilage to the cartilage of the rib superior)