lecture 29 Flashcards
respiration
gas exchanging mechanism supported and protected by a bony cage
lungs
carry out gas exchange and are housed within thorax
rib cage
performs a protective function
superior
1st rib and clavicle
inferior
12th rib
lateral and anterior aspects
ribs and sternum
entire thorax is suspended from what
vertebral column
what carries out gas exchange and is housed within thorax
lungs
what is suspended from vertebral column
entire thorax
divisions of vertebral column
cervical 7
thoracic 12
lumbar 5
sacral 5
coccygeal 4
cervical vertebrae
spinous process, corpus, transverse processes, vertebral foramen, superior and inferior articular facets
superior and inferior articular facets of cervical
attachment points for muscles
atlas and axis
c1 is atlas and c2 is axis
thoracic vertebrae
- base of respiratory framework and posterior point of attachment for the ribs
- larger spinous and transverse processes
- superior and inferior costal facets (points of attachment for ribs)
lumbar vertebrae
- much larger than cervical and thoracic vertebrae
- provide direct/indirect attachment for back and abdominal muscles and posterior fibers of diaphragm
- spinous and transverse processes are smaller while corpus is much larger
which provides direct/indirect attachment for back and ab muscles and posterior fibers of diaphragm
lumbar vertebrae
which has superior and inferior costal facets
thoracic
sacrum
five sacral vertebrae are fused together known as sacrum
coccyx
composed of fused coccygeal vertebrae (beaklike appearance)
pelvic girdle
lower extremities attach to vertebral column
girdles parts
ilium, sacrum, pubic bone, ischium
pectoral girdle
upper extremities attach to vertebral column with this
shoulder girdle
includes the scapula and clavicle
all except lowest 2 of ribs are attached by
means of cartilage to sternum on anterior aspect