Flashcards
Nervous Systems VI
Cards in this deck (28)
- 1Skin sensory endings (6) Na Na Me Me Pa RuNaked ending
Hair follicle
Merkel disc
Meissner's
Pacinian corpuscle
Ruffini - 2NakedPain, 'c
- 3Hair follicleHair movement
- 4Merkel discSustained pressure (slow adaptive)
- 5Meissner's endingTouch - rapid adapting
- 6Pacinian CorpuscleVibration
- 7Ruffini endingShear stress
- 8What separates the 1' sensory cortex and motor areas?Central sulcus
- 9What is extrafusal muscle fibre innervated by?alpha motor neuron
- 10What is intrafusal fibre innervated by?gamma motor neuron
- 11What does activation of alpha cause?Extrafusal muscle fibres to shorten
- 12What effect would this have on muscle spindle?Cause the spindle to become slack, and no longer report length of muscle
- 13How do spindle fibres counteract this?Activation of gamma motor neurons causes spindle poles to contract, keeping it active.
- 14What monitors stretch in tendons?Golgi tendon organs
- 15What do joint receptors report?When movement of joint is reach its max ROM
- 16Benefits of somatotopyHelps keep order in sensory systems
Makes organisation of synaptic connections more efficient - 17Proprioception in insectsHair plates
Campaniform sensilla - 18MOAAs femur travels upwards, hair plate brushes on coxa
- 19What sort of receptor does this act like?Joint receptor
- 20What are Campaniform sensila?Depressions w/ floor of thin cuticle
- 21What do Campaniform sensilla monitor?Distortion of insect exoskeleton
Oscillation in shapes of halteres - 22Function of halteresAct like gyroscopes during flight
When insect turns this creates strain in shafts of halteres which is monitored by Campaniform sensilla - 23What muscle mass do insects have for escape mechanisms?Muscle receptor organ in abdomen
- 24What organs are used for detection of electric fields?Ampullae of Lorenzini
- 25What types of electric fish exist?1. High voltage fish to stun prey
2. Weakly electric fish that generate a constant field for navigation and communication - 26How do birds sense magnetic fields?Theories include:
1. ElectroR
2. Magnetic crystals
3. Magnetic sense linked to vision - 27Evidence for 3?Only present when birds under full spectrum white light
- 28MOAMagnetic frequencies alter the spin state of high energy electrons generated when photopigments absorb light energy
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- User has deleted their subject information Flashcards on Nervous Systems VI, created by Deleted user on 10/05/2018.
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- Created by J yadonknow · May 9, 2018
- Copied by J yadonknow · May 10, 2018
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