This set of Human Physiology Interview Questions and Answers for Experienced people focuses on “Neural Control and Coordination – Functions, Parts and Types of Nervous System”.
1. Which among the following is a structural and functional unit of the nervous system?
a) Neurons
b) Nephron
c) Brain
d) Spinal cord
View Answer
Explanation: Nephron is the microscopic structural and functional unit of kidney. It is made up of a renal corpuscle and renal tubule.
2. Neurons are absent in ___________
a) Flat worms
b) Prawns
c) Sponges
d) Leech
View Answer
Explanation: Sponges are the member of phylum Porifera. They lack neurons.
3. Which type of nervous system is present in flatworms?
a) Diffused nervous system
b) Ladder type nervous system
c) Circum pharyngeal nervous system
d) Central nervous system
View Answer
Explanation: In flat worm nervous system is ladder type. It is formed of primitive nerve rings and nerve cords. The latter is connected by transverse connectives.
4. In which of the following can be see diffused nervous system?
a) Hydra
b) Earthworms
c) Millipedes
d) Frogs
View Answer
Explanation: In coelenterates (hydra) diffused nervous system is present. It is formed of epidermal nerve nets in which neuritis of neurons are not differentiated into Dendron and axons.
5. Alzheimer’s disease is associated with deficiency of ____________
a) Acetlycholine
b) Dopamine
c) Glutamic acid
d) Gamma aminobutyric acid
View Answer
Explanation: Acetlycholine is an organic chemical that functions in the brain and body of many types of animals as a neurotransmitter. Alzheimer’s disease is a progressive disease that destroys memory and other important mental function. Alzheimer’s disease is associated with deficiency of Acetlycholine.
6. Nervous system is __________
a) An external communication system
b) A slow communication system
c) A rapid communication system
d) A moderate communication system
View Answer
Explanation: Nervous system is the network of cells and fibers which transmits nerve impulses between parts of the body. Nervous system is rapid communication system.
7. Nervous system is divided into _________ parts.
a) 3
b) 2
c) 4
d) 5
View Answer
Explanation: Nervous system is divided into 2 parts. They are Central nervous system and peripheral nervous system.
8. _______ controls the voluntary functions of the body.
a) PNS
b) CNS
c) Neurons
d) ANS
View Answer
Explanation: Peripheral nervous system controls the voluntary functions of the body. It is formed of long thin whitish threads called nerves which extends between CNS and body parts.
9. How many types of peripheral nerves are present?
a) 1
b) 2
c) 3
d) 4
View Answer
Explanation: There are 2 types of peripheral nerves are present. They are afferent nerve fibers and efferent nerve fibers.
10. Neuroglial cells support and provide nutrition for the ___________
a) Nephron
b) Muscles
c) Glands
d) Neurons
View Answer
Explanation: Neuroglial cells form myelin. They protect support and maintain equilibrium in the nervous system. Neuroglia is cells that are not neurons.
11. Sympathetic nervous system is associated with ____________
a) Fight and flight
b) Fear and rage
c) Hormonal secretions
d) Skeletal muscles
View Answer
Explanation: Sympathetic nervous system is a part of the autonomic nervous system. It activates fight or flight response.
12. Somatic nervous system is made up of __________
a) Relay neurons
b) Associate neurons
c) Sensory neurons
d) Motor neurons
View Answer
Explanation: Somatic nervous system is a part of the peripheral nervous system. The Somatic nervous system consists of afferent nerves and efferent nerves.
13. What type of signals are used by the nervous system to communicate?
a) Electrical and chemical
b) Electrical and mechanical
c) Mechanical and chemical
d) Only chemical
View Answer
Explanation: The nervous system communicates using Electrical and chemical. Electrical signals are in the form of pulses and chemical signals are through some hormones or chemicals.
14. Gaps in myelin sheath are called as __________
a) Synapse
b) Myeliniods
c) Nodes of ranvier
d) Myelinoids
View Answer
Explanation: Myelin is a fatty white substance that surrounds the axon of some nerve cells. It forms an electrically insulating layer, it is essential for the proper functioning of the nervous system. Gaps in myelin sheath are called as Nodes of ranvier.
Sanfoundry Global Education & Learning Series – Human Anatomy and Physiology.
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