Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Chapter 13
The Peripheral Nervous System/Reflex Activity
| Question | Answer |
|---|---|
| the peripheral nervous system includes ___ | neural structures outside the brain & spinal cord |
| the neural structures outside the brain & spinal cord include: | sensory receptors, ganglia, peripheral nerves & motor endings |
| the PNS allows your brain to: | respond |
| sensory receptors are classified by: | stimulus, location & structure |
| mechanoreceptors | force - such as pressure, touch, vibration |
| thermoreceptors responds to: | temperature changes |
| photoreceptors responds to | light |
| chemoreceptors responds to | chemicals - such as taste & smell |
| noicereceptors | pain receptors - respond to damage from tissue |
| tactile, merkel cells & meissners corpuscles are __ touch | light |
| which type of receptor does not adapt? | pain |
| pacianian corpuscles are a __ touch | deep |
| the 1st two pair cranial nerves attach to the ___ while the other 10 attach to the: | Forebrain - Brain stem |
| olfactory nerve | smell - sensory function |
| the names of the cranial nerves reveal ___ or either ___ | structure - function |
| optic nerve | vision - sensory function |
| oculomotor nerve | eye mover - motor function |
| trochlear nerve | eye movement - motor function |
| trigeminal nerve | general nerve of face - mixed function |
| what is the largest cranial nerve? | trigeminal |
| the trigeminal is separated into 3 divisions. what are they? | opthalamic, maxillary, and mandibular |
| abducens nerve | turns eye laterally, controls eye muscle - motor function |
| facial nerve | facial expression - mixed function |
| the facial nerve includes: | temporal, zygomatic, buccal, mandibular and cervical |
| vestibulocochlear nerve | hearing & balance: equilibrium - sensory |
| glossopharyngeal nerve | taste & swallowing - mixed function |
| vagus nerve | heart rate, breathing and digestion - mixed function |
| accessory nerve | controls muscles in head movement - mixed function |
| hypoglossal nerve | innervates tongue muscles -motor function |
| exterocepters | detects external change |
| interoceptors | detects internal change |
| propioceptors | responds to change in shape - inform the brain of movement |
| what is the only cranial nerve to extend beyond the head & neck? | vagus nerve |
| the ___ nerve is considered an accessory part of the vagus | Accessory |
| what nerve comes from the spinal cord? | accessory nerve |
| touch, pressure and pain are examples of a ___ receptor. | exteroceptors |
| chemical change and tissue stretch are examples of what type of receptor? | interoceptors |
| this receptor activity can cause us to feel pain, thirst or hunger. | interoceptor |
| this receptor occurs in skeletal muscle, tendons, joints & ligaments. | propioceptors |
| sensation | awareness of stimulus |
| perception | interpretation of stimulus |
| perception determines: | how we will respond |
| pain receptors are activated by: | temperature, pressure & chemical released by injured tissue |
| we all have the same pain threshold it is our ___ ___ that differs | pain tolerance |
| sensory perception includes: | pattern recognition, magnitude estimation, feature abstraction & spacial discrimination |
| groups of cell bodies in the PNS are called: | ganglia |
| axons are covered by what type of tissue? | endoneurium |
| fasiscles are covered by what type of tissue? | perineum |
| a nerve is surrounded by what type of tissue? | epineurium |
| nerves are classified according to the ___ they transmit impulses | direction |
| mixed nerves | contains sensory & motor fibers - transmit impulses to & from CNS |
| sensory nerves | carry impulses toward CNS |
| motor nerves | carry impulses away from CNS |
| another word for sensory nerves is: | afferent |
| another word for motor nerves is: | efferent |
| mechanically-gated chemicals open in response to: | physical stretching of membrane |
| ligand-gating chemicals open when: | damaged tissue releases histamine or potassium ions |
| ___ cells help nerves regenerate | schwann |
| if you have a greater potential, it has to reach ___ | threshold |
| reflexes can be ___ or ___ | inborn (intrinsic) - learned (acquired) |
| inborn (intrinsic) reflex | rapid, involuntary |
| learned (acquired) reflex | practice/repetition |
| what are the 5 components of a reflex arc? | receptor. sensory neuron, integration center, motor neuron & effector |
| receptor | site of the stimulus action |
| sensory neuron | transmit afferent impulses to CNS |
| integration center | relays the info |
| motor neuron | conducts efferent impulses from integration center to effector organ |
| effector | responds to motor impulses by contracting or secreting |
| the nervous system needs to know what 2 things to coordinate the activity of skeletal muscles? | length of muscle & muscle tension |
| the length of the muscle comes from muscle spindles which: | causes contraction |
| the amount of tension in muscle comes from tendon organs which causes: | muscle relaxation |
| what reflex helps keep your knees form buckling when standing or walking? | knee-jerk reflex |
| the stretch reflex maintains: | muscle tone & posture |
| the tendon stretch is the stimulation of tendon organs by ___ which causes ___ | excessive tension - muscle relaxation |
| ___ helps prevents muscles & tendons from tearing when force is applied | tendon stretch |
| this reflex is initiated by painful stimuli and causes automatic withdrawal if threatened body part by stimulus. | withdrawal reflex |
| cervical plexus innervates the: | skin, muscles of the ear back, shoulders & head |
| the cervical plexus consists of the ___ nerve | phrenic |
| phrenic nerve innervates the: | diaphragm - C3, 4, 5 |
| brachial plexus innervates the: | upper limb |
| lumbar plexus | innervates abdominal wall, thigh |
| the most intrinstic muscle of the body is | ulnar nerve |
| the longest thickest nerve of the body is: | sciatic |
| the cervical plexus is numbered: | C1-C4 |
| the lumbar plexus is numbered: | L1-L4 |
| Oculomotor nerve number: | III |
| Optic nerve is number: | II |
| Olfactory nerve is number: | I |
| Trochlear nerve is number: | IV(4) |
| Trigeminal nerve is number: | V(5) |
| Abducens nerve is number: | VI(6) |
| Facial nerve is number: | VII(7) |
| Vestibulocochlear nerve is number: | VIII(8) |
| Glossopharygneal nerve is number: | IX(9) |
| Vagus nerve is number: | X(10) |
| Accessory nerve is number: | XI(11) |
| Hypoglossal nerve is number: | XII(12) |
Created by:
Mariahj25
Popular Anatomy sets