PNS
Trending Questions
What is ANS?
Compare and contrast nervous and hormonal mechanisms for control and coordination in animals. [5 MARKS]
Which part acts as the gatekeeper of electrical conduction system of heart?
Purkinje fibre
Sinoatrial node
Atrioventricular node
Pericardium
The SNS controls the involuntary actions, whereas the ANS controls the voluntary muscles.
True
False
The system that carries nerve impulses back and forth between the central nervous system and the skeletal muscles, skin and sensory organs is called
SNS and ANS are the subdivisions of
Which among the following carries both sensory and motor information?
Cranial nerves
Spinal nerves
Mixed nerves
Depressor nerve
Name the nerve cells that make up the brain and spinal cord.
Enter 1 word only.
Nerve which carries nerve impulse from a tissue to the central nervous system is called
Afferent
Efferent
Mixed
Motor
Identify the incorrect statement(s).
I. The nerves carrying impulses from CNS to the peripheral system are Sensory nerves or Afferent nerves
II. The nerves carrying impulses from the peripheral system to CNS are Motor nerves or Efferent nerves
III. Sensory system coordinates auditory, visual, touch receptors etc.
IV. Motor system coordinates impulses towards effector organs.
I and II
I and III
II and IV
III and IV
The ______________ includes the nerves which carry impulses to and from the central nervous system.
- cell body
- nerve
- axon
- medulla
- sensory
- relay
- motor
Ganglia is part of the central nervous system.
True
False
- PNS
- CNS
- sympathetic nervous system
- parasympathetic nervous system
Which of the following is NOT a function of electrical conduction of human heart?
To maintain nerve impulse
To ensure coordinated muscle contraction
To maintain effective pumping of blood
None of the above
[1 Mark]
Voluntary muscle contractions are initiated in:
Brain
Heart
Spinal cord
None of the above
One of the examples of the action of the autonomous nervous system is:
Knee-jerk response
Pupillary reflex
Peristalsis of the intestines
Swallowing of food
Identify the incorrect statement(s) regarding the components of PNS.
I. The nerves carrying impulses from CNS to peripheral system are sensory nerves or afferent nerves
II. The nerves carrying impulses from peripheral system to CNS are motor nerves or efferent nerves
III. Afferent nerves bring in impulses from the auditory, visual and touch receptors.
IV. Efferent nerves coordinates impulses towards effector organs.
III and IV
I and III
I and II
II and IV
Define peripheral nervous system.
- central nervous system
- peripheral nervous system
- somatic nervous system
- autonomic nervous system
Identify the parts labelled 1 to 5.
1. Effector 2.Efferent neuron 3.Integration center 4.Afferent neuron 5.Receptor
1.Effector 2.Afferent neuron 3.Integration center 4.Efferent neuron 5.Receptor
1.Receptor 2.Afferent neuron 3.Integration center 4.Efferent neuron 5.Effector
1.Receptor 2.Afferent neuron 3.Efferent neuron 4.Integration center 5.Effector
FInd the correct function of the efferent nerves from the following options.
Conduct information from CNS to the effector organ
Conduct information from effector organ to the CNS
Both A and B
Neither A nor B
- VII
- IX
- X
- VIII
Which of the following is a part of the peripheral nervous system?
Sensory pathway
Autonomic nervous system
Somatic nervous system
A, B and C