Join / Login
Back

Important questions on Relfex Action And Reflex Arc

Which is the correct sequence of the components of a reflex arc?

A
Receptors muscles sensory neuron motor neuron spinal cord
B
Receptors motor neuron spinal cord sensory neuron muscle
C
Receptors spinal cord sensory neuron motor neuron muscle
D
Receptors sensory neuron spinal cord motor neuron muscle
View Answer

Reflex arc consists of 

A
Motor nerve
B
Sensory nerve
C
Both sensory and motor nerves
D
None of the above
View Answer

Route of reflex arc is

A
Effectors, grey matter, motor fibres, sensory fibres and receptors
B
Receptors, sensory fibres, grey matter and motor fibres
C
Receptors, sensory fibres, grey matter, motor fibres and effectors
D
Sensory fibres, grey matter, motor fibres, receptors and effectors
View Answer

Route of reflex arc is

A
Receptors, effectors, gray matter and motor fibres
B
Receptors, sensory fibres, gray matter, motor fibres and effectors
C
Sensory fibres, gray matter, motor fibres, receptors and effectors
D
Effectors, gray matter, motor fibres, sensory fibres and receptors
View Answer

Which of the following is responsible to recover from stress?

A
Sympathetic nerves
B
Parasympathetic nerves
C
Spinal nerves
D
Cranial nerves
View Answer

The following is the scheme showing the path of reflex arc. Identify the different labeling A, B, C, D, E, F in the reflex arc.

A
A- Stimulus, B- Effector, C- Motor nerve, D- Sensory nerve, E- Receptor, F- Response
B
A- Stimulus, B- Receptor, C- Motor nerve, D- Sensory nerve, E- Effector, F- Response
C
A- Stimulus, B- Effector, C- Sensory nerve, D- Motor nerve, E- Receptor, F- Response
D
A- Stimulus, B- Receptor, C- Sensory nerve, D- Motor nerve, E- Effector, F- Response
View Answer

The delay in transmission from the dorsal to the ventral root across the spinal cord for the reflex pathways 'A', 'B', 'D' and 'C' respectively is 0.5 ms,1.0 ms, 1.5 ms, and 2.0 ms.Identify the correct option: (Average synaptic delay =0.5 ms)

A
A=monosynaptic , B=bisynaptic , C=trisynaptic
B
A=monosynaptic , B= trisynaptic , D=bisynaptic
C
A=monosynaptic , C=trisynap tic , D=quadrisynaptic
D
A=monosynaptic , D=trisynaptic , C=quadrisynaptic
View Answer
CHeatsheet
Cheatsheet