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atnmc nrvs system
Question | Answer |
---|---|
different plexes | - cervical plexus - brachial plexus - lumbosacral plexus (lumbar and sacral) |
cervical plexus | phrenic nerve |
brachial plexus | - axillary nerve - musculotaneous nerve - median - radial - ulnar |
lumbar | - femoral - saphenous - obturator - lateral femoral cutaneous |
sacral plexus | - tibial - common fibular (deep and superficial) |
phrenic nerve | diaphragm |
axillary | deltoid muscles |
musculotaneous nerve | biceps brachii |
median nerve | palmaris longus |
radial | triceps brachii |
ulnar nerve | flexor carpi ulnaris |
femoral nerve | quadriceps |
obturator nerve | gracilis muscle |
lateral femoral cutaneous nerve | skin of lateral thigh |
tibial nerve | popliteus |
common fibular nerve | biceps femoris |
deep fibular nerve | biceps femoris |
superficial fibular nerve | biceps femoris |
receptor | site of stimulus |
sensory neuron | transmits impulses to CNS |
integration center | synapses in the CNS |
motor neuron | transmits impulses to an effector organ |
effector | responds to the efferent impulses |
sympathetic | fight or flight |
parasympathetic | digest and rest |
somatic reflexes | patellar reflex, achilles reflex |
autonomic reflexes | pupillary, salivary |
exteroceptors | react to external stimuli ex. Pacinian corpuscles |
interoceptors | react to internal stimuli ex. chemoreceptors |
proprioceptors | react to skeletal muscle stimuli ex. muscle spindles |
Merkel discs | light tough receptors (epidermis) |
Meissner's Corpuscles | respond to light touch (dermal papillae) |
Pacinian Corpuscles | high frequency vibration (reticular layer) |
proprioreceptors | muscle spindles |
somatic | skeletal muscles, voluntary |
autonomic | smooth muscle (cardiac muscles), involuntary |
somatic reflexes | patellar reflex, achilles reflex |
autonomic reflexes | pupillary reflex, salivary reflex |
dorsal root | sensory |
ventral root | motor |