Sensory Physiology at TU München | Flashcards & Summaries

Select your language

Suggested languages for you:
Log In Start studying!

Lernmaterialien für sensory physiology an der TU München

Greife auf kostenlose Karteikarten, Zusammenfassungen, Übungsaufgaben und Altklausuren für deinen sensory physiology Kurs an der TU München zu.

TESTE DEIN WISSEN

What do the semicircular canals sense?

Lösung anzeigen
TESTE DEIN WISSEN

They sense head rotation (=angular acceleration).

  • head turns or tilts
  • body rotates
  • during active and passive locomotion
The semicircular canals sense these acceleration and report their magnitude and orientations to the brain
Lösung ausblenden
TESTE DEIN WISSEN

How do we differentiate between linear acceleration and gravity even though the signal from the otolith organs is the same?

Lösung anzeigen
TESTE DEIN WISSEN

Our brain also integrates signals from the semicircular organs and the visual and somatosensory system which is why we can properly interpret head and body motions

Lösung ausblenden
TESTE DEIN WISSEN

How does the normal response to movement look like?

Lösung anzeigen
TESTE DEIN WISSEN

most of our movements lead to a complex stimulation of both systems within the vestibular system that detect either rotation or linear acceleration or tilt. These complex stimulations consist of excitatory and inhibitory signals of the different parts of the system

Lösung ausblenden
TESTE DEIN WISSEN

What is the vestibulo-ocular reflex?

Lösung anzeigen
TESTE DEIN WISSEN

Due to the vestibulo-ocular reflex the eyes can kept still while the head is moving. There are three types of vestibulo-ocular reflexes:

  • rotational VOR (compensates for head rotation, input from semicircular canals)
  • translational VOR (compensates for linear head movement)
  • ocular counter-rolling response (compensates for head tilt in the vertical plane)
Lösung ausblenden
TESTE DEIN WISSEN

Is the VOR and the control of the cerebellum stable?

Lösung anzeigen
TESTE DEIN WISSEN

No, the VOR is plastic which means that the motor output can be modified by sensory feedback. Therefore the VOR remains accurate even though there might be changes in the motor system (fatigue, eye muscle weaknesses) and differing visual requirements (corrective lenses)

Lösung ausblenden
TESTE DEIN WISSEN

What are the two major classes of reflexes of the vestibular system?

Lösung anzeigen
TESTE DEIN WISSEN
  1. reflexes that are responsible for maintaining equilibrium and gaze during movement --> coordination of head and eyes to keep the gaze fixed on an object of interest during movement
  2. reflexes that are responsible for maintaining posture -->
Lösung ausblenden
TESTE DEIN WISSEN

Waht are the two components of posture?

Lösung anzeigen
TESTE DEIN WISSEN
  1. orientation
  2. balance
Lösung ausblenden
TESTE DEIN WISSEN

What is postural orientation?

Lösung anzeigen
TESTE DEIN WISSEN

the positioning of body segments with respect to each other and the environment

Lösung ausblenden
TESTE DEIN WISSEN

What is involved in postural control?

Lösung anzeigen
TESTE DEIN WISSEN

Three systems are involved

  • somatosensory
  • vestibular
  • visual
all three systems provide information which is integrated to provide a coherent picture
Lösung ausblenden
TESTE DEIN WISSEN

What is meant by sensory information?

Lösung anzeigen
TESTE DEIN WISSEN

Sensory information is this context is defined as neural activity that originates from receptor cells

Lösung ausblenden
TESTE DEIN WISSEN

What are sensory receptors doing?

Lösung anzeigen
TESTE DEIN WISSEN

Each sensory receptors provide the first neural representaion of the external world. These specialized receptors transform a specific type of stimulus energy into electrical signals.

Lösung ausblenden
TESTE DEIN WISSEN

Can we detect gravity? If so why?

Lösung anzeigen
TESTE DEIN WISSEN

Yes, we can sense gravity because gravity is a linear acceleration. The otolith organs can sense the tilt (Kippwinkel, Neigung) of the head relative to gravity. (=orientation)

Lösung ausblenden
  • 525001 Karteikarten
  • 11351 Studierende
  • 499 Lernmaterialien

Beispielhafte Karteikarten für deinen sensory physiology Kurs an der TU München - von Kommilitonen auf StudySmarter erstellt!

Q:

What do the semicircular canals sense?

A:

They sense head rotation (=angular acceleration).

  • head turns or tilts
  • body rotates
  • during active and passive locomotion
The semicircular canals sense these acceleration and report their magnitude and orientations to the brain
Q:

How do we differentiate between linear acceleration and gravity even though the signal from the otolith organs is the same?

A:

Our brain also integrates signals from the semicircular organs and the visual and somatosensory system which is why we can properly interpret head and body motions

Q:

How does the normal response to movement look like?

A:

most of our movements lead to a complex stimulation of both systems within the vestibular system that detect either rotation or linear acceleration or tilt. These complex stimulations consist of excitatory and inhibitory signals of the different parts of the system

Q:

What is the vestibulo-ocular reflex?

A:

Due to the vestibulo-ocular reflex the eyes can kept still while the head is moving. There are three types of vestibulo-ocular reflexes:

  • rotational VOR (compensates for head rotation, input from semicircular canals)
  • translational VOR (compensates for linear head movement)
  • ocular counter-rolling response (compensates for head tilt in the vertical plane)
Q:

Is the VOR and the control of the cerebellum stable?

A:

No, the VOR is plastic which means that the motor output can be modified by sensory feedback. Therefore the VOR remains accurate even though there might be changes in the motor system (fatigue, eye muscle weaknesses) and differing visual requirements (corrective lenses)

Mehr Karteikarten anzeigen
Q:

What are the two major classes of reflexes of the vestibular system?

A:
  1. reflexes that are responsible for maintaining equilibrium and gaze during movement --> coordination of head and eyes to keep the gaze fixed on an object of interest during movement
  2. reflexes that are responsible for maintaining posture -->
Q:

Waht are the two components of posture?

A:
  1. orientation
  2. balance
Q:

What is postural orientation?

A:

the positioning of body segments with respect to each other and the environment

Q:

What is involved in postural control?

A:

Three systems are involved

  • somatosensory
  • vestibular
  • visual
all three systems provide information which is integrated to provide a coherent picture
Q:

What is meant by sensory information?

A:

Sensory information is this context is defined as neural activity that originates from receptor cells

Q:

What are sensory receptors doing?

A:

Each sensory receptors provide the first neural representaion of the external world. These specialized receptors transform a specific type of stimulus energy into electrical signals.

Q:

Can we detect gravity? If so why?

A:

Yes, we can sense gravity because gravity is a linear acceleration. The otolith organs can sense the tilt (Kippwinkel, Neigung) of the head relative to gravity. (=orientation)

sensory physiology

Erstelle und finde Lernmaterialien auf StudySmarter.

Greife kostenlos auf tausende geteilte Karteikarten, Zusammenfassungen, Altklausuren und mehr zu.

Jetzt loslegen

Das sind die beliebtesten StudySmarter Kurse für deinen Studiengang sensory physiology an der TU München

Für deinen Studiengang sensory physiology an der TU München gibt es bereits viele Kurse, die von deinen Kommilitonen auf StudySmarter erstellt wurden. Karteikarten, Zusammenfassungen, Altklausuren, Übungsaufgaben und mehr warten auf dich!

Das sind die beliebtesten sensory physiology Kurse im gesamten StudySmarter Universum

Sensory Physiology

Universität Osnabrück

Zum Kurs
Physiology

University of Southampton

Zum Kurs
physiology

Institue of Technology, Tralee

Zum Kurs
physiology

King's College London, University of London

Zum Kurs
physiology

HUG - Univ. Hospitals of Geneva

Zum Kurs

Die all-in-one Lernapp für Studierende

Greife auf Millionen geteilter Lernmaterialien der StudySmarter Community zu
Kostenlos anmelden sensory physiology
Erstelle Karteikarten und Zusammenfassungen mit den StudySmarter Tools
Kostenlos loslegen sensory physiology