Mod 4 - gen
What band has only thin filaments?
I band
name one action of the trapezius
extension, contralateral rotation, LF of head/neck
what structures are found in the CNS?
brain/ spinal cord
what connects the third and fourth ventricles?
cerebral aqueduct
What do baroreceptors respond to? Chemoreceptors?
changes of pressure; changes in chemical composition
What neurotransmitter is released in the NMJ?
ACh (acetylcholine)
name 3 muscles that insert into calcanea tendon
gastrocs, soleus, plantaris
what microglia myelinated the CNS?
oligodendrocytes
what area of the brain monitor rate and depth of breath?
rate: medulla
depth: pons
What do the posterior column pathways bring information from?
fine touch, pressure, proprioception
What filament binds to calcium to open the actin active site?
troponin
Name 2 muscles that perform pronation
pronator teres, pronator quadratus
what microglia maintain the blood brain barrier?
astrocytes
what is the first cranial nerve?
olfactory
what information is received by the spinocerebellar pathway?
proprioception from muscles and joints
What type of muscle fibers are multinucleate?
skeletal
what muscle is found around the eye and facilitates blinking?
orbicularis oculi
what is the RMP of nerve fibers?
-70mV
what is the name of the 10th cranial nerve; is this motor, sensory or both?
vagus, both
If the optic nerve is cut at the chasm, what part of the visual field cannot be seen?
peripheral (bitemporal hemianopsia)
what is the increase in function with coinciding increase of muscle size?
hypertrophy
what muscle performs hip lateral rotation and flexion, as well as knee flexion?
sartorius
ips: flex știm, ext inhib
contra: ext stim, flex stim
what is the relay station of the brain?
thalamus
what nerve receives sensory information from the internal ear?
CN VIII vestibulocochlear