SI Questions Flashcards
(155 cards)
efferent definition
motor
signals sent away from brain
afferent definition
sensory
signals sent toward the brain
somatic
voluntary
continuous single nerve
autonomic
involuntary
2 nerves connected by synapse
sympathetic
synapses before target in sympathetic trunk
parasympathetic
synapses in walls of target
what separates thorax and abdomen
diaphragm
why is diaphragm higher on the right side
liver is on right side
what happens to diaphragm during inspiration
depresses diaphram
what happens to diaphragm during expiration
elevates when muscles relax
what spinal nerves form the phrenic nerve
C3
C4
C5
which pleura touches lungs to form outermost layer
visceral
left lung
upper + lower lobes
oblique fissure
slightly smaller
right lung
upper + middle + lower lobes
horizontal + oblique fissure
what anchors lung
hilum
in hilum, what structure is superior vs inferior
sup - artery
inf - vein
what is the sight of gas exchange
alevoli / alveolus
how does blood oxygenate from the heart
pulmonary a.
lungs
alveolus
branches of pulmonary v.
heart
intercostal muscles from most superficial to deep
external intercostal
internal intercostal
innermost intercostal
which mediastinum consists of heart and pericardium
middle
what esophagus is ___ to the heart
posterior
T OR F
dorsal root ganglia are motor and ventral root ganglia are sensory
F
T OR F
spinal nerves T1-L2 form sympathetic trunk
T
T OR F
the pleural cavity encapsulates lungs
F