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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 |