test 1 Flashcards
what are the cavities of the diaphragm
thoracic
abdominal
pelvic inlet
what is the floor of the thoracic cavity
diaphragm
what is the roof of the abdominal cavity
diaphragm
what type of cartilage is between a joint
articulate cartilage
how many true ribs are there
1-7 (direct line to the sternum)
How many false ribs are there
8-10
which ribs are considered to be floating ribs
11 and 12
the inferior angle of the scapula is in line w which vertebra
T7
the top of the scapula is in line with what vertebrae
T1/T2
the root of the scapula is in line with which vertebrae
T3
do the false ribs connect to he sternum?
no
all ribs have what
costalvertebral
costotransvers
what rib is it if it is connected to the inferior costal facet of T4
rib 5
what rib is it if the rib hits the inferior costal facet of T6 and superior costal facet of T7
rib 7
the sternocostal joint is the
upper 7 ribs
which rib is fibrocartilaginous
rib 1
the rest of the ribs are what type of cartilage
synovial
which vertebrae have facets for the ribs
throacic
what travels through the intervertebral foramen
the spinal nerve
does C1 have a spinous process/
no
the rule of 3’s: T1-T3 SP to vertebral body
over the body of the corresponding vertebrae
rule of 3’s: T4-T6 SP to Vertebral body
over the intervertebral space below
rules of 3’s: T7- T9 SP to vertebral body
over the body of the vertebrae below (going 1 whole vertebrae down)
rules of 3’s:T10-T12 SP to vertebral body
over the body of the same corresponding vertebrae
what is considered the upper thoracic
T1-T3
what is considered mid thoracic
T4- T9
what is considered lower throacic
T10-T12
which muscle draws the rib inferiorly and assist with exhalation
internal intercostals
which muscle draws the ribs superiorly and assist in inhalation
external intercostals
serratus posterior superior does what
elevates ribs during inhalation
serratus posterior inferior does what
depresses the ribs during exhalation
the internal thoracic arteries go off the
subclavian artery
the interocostal artery and nerve travel in the
subcostlal groove- between intercostal mm
what has branches that goes in between the ribs
thoracic aorta
What dermatome is the axilla area
T2
what dermatome is the nipple area
T4
what dermatome is the xiphoid process
T6
what dermatome is the umbilicus area
T10
what does shingles effect
the dermatomes
what is the main muscle of inspiration
diaphragm
what does the diaphragm do when it contracts
flattens
how many openings does the diaphragm have
3
what happens when the diaphragm goes down?
the pelvic floor also goes down
what is the nerve innervation for the diaphragm
phrenic nerve C3,4,5
structures that pass throuhg the diaphragm is
internal vena cava (T8)
esophagus and vagus nerve (T10)
aorta and thoracic duct (T12)
what is the order of the structure of the diaphragm from anterior to posterior
inferior vena cava
esophagus
aorta
what is the order of the structure of the diaphragm from medial to lateral
inferior vena cava
esophagus
aorta
where do major vessle exit
the pelvic cavity
what muscle makes a 90 degree turn
obturator internus
what muscle relaxes when you use the restroom
puborectalis
what are the muscles of the posterior abdominal wall?
quadratus lumborum
psoas major
iliacus
what 2 muscles are the hip flexors
iliacs and psoas major
the hip flexor muscles join together distally to form the common tendons of iliopsoas and connects where
less trochanter
what is the MA for quadratus lumborum
unilaterally: laterally hikes the pelvis
latererally flexes the vertebral column to the same side
extend the vertebral column
Bilaterally:
fix rib 12 during forced inspiration
what is the MA for the psosa major and iliacus
with the origin fixed:
flex the hip
external rotation of the hip
with the insertion fixed:
flex the trunk towards the thigh
tilit pelvis anteriorly
what nerve innervates the psoas major
vental rami of L1, L2, and L3
what nerve innervates the iliacus
femoral nerve L2 to L4
what can an inflamed appendix cause
inflammation/spasms of the iliacus muscle
