Act 6 Reflex Physiology Flashcards
Rapid, predictable motor response to a STIMULUS
Reflex
Types of Reflexes (2)
Inborn (intrinsic)
Learned (Acquired)
Reflexes are involved with what body parts? (3)
Peripheral Nerves
Spinal Cord
Higher Brain Centers
Motor responses that involve the ___ of the skeletal system are called ____
Striated muscles
Somatic Reflexes
Motor responses that involve the ___ are called ____
Smooth muscles
Autonomic Reflexes
Smooth muscles located in? (3)
Organs
Glands
Vascular System
The Somatic system is commonly attributed with (2)
Voluntary responses
Directed Motor Responses
The Autonomic system is commonly attributed with what processes? (2)
Involuntary responses
Non-directed responses
Example of an EXCEPTION of the Somatic system doing involuntary reflexes
Salivation
Governs the operation of reflexes
The SIMPLEST physiological explanation of how reflexive activity in the body works
Reflex arc
First defined the Reflex Arc back in the 1900s
Charles Sherrington
The five reflex arc components:
- The receptor
- The sensory neuron
- The integration center
- The Motor Neuron
- The Effector
- The ____ reacts to a ____
Receptor
Stimulus
- The ____ conducts the ____ to the CNS
Sensory Neuron
Afferent impulses
- The ____ consisting of one or more ___ in the CNS
Integration Center
Synapses
- The ____ that conducts the ___ from the ____ to an ____
Motor Neuron
Efferent impulses
Integration Center
Effector Organ
- The ____, ____ or ____ that respond to the ____ by ____ or ____
Effector
Muscle fibers or Glands
Efferent impulses
Contracting or Secreting a product
Liquid used for the experiment
10% HCL
Thing that must be done to the frog:
Decerebration of the frog
The ____ must be removed with the scissors
Cranium
What happens when you dip normal frog feet in the HCl?
It will flex its leg
What happens if you remove the skin?
What do you block?
How?
No reflex
Sensory part
Removing Receptors
What nerve do you cut to block the motor component of the frog?
Sciatic nerve
