17436.______ is an abundant inhibitory neurotransmitter in CNS.
Adrenaline
Acetylcholine
GABA
Noradrenaline
17437.Recording of the electrical activity associated with the heartbeat is called ______.
Oscilloscope
Electrocardiogram
Stethoscope
Laparoscope
17438.Molecules of neurotransmitter, released from the presynaptic neuron bind to receptors on the ______.
Postsynaptic membrane
Cell body
Axonal membrane
None of these
17439.Which one of the followings is the function of parasympathetic nervous system?
Stimulates oil and sweat glands in the skin
Pupil constriction
Acceleration of heart beat
Contraction of hair muscles
17440.Comprehension of spoken and written words take place in the region of
Association Area
Motor Area
Wernicke's Area
Broca's Area
17441.One of the followings is a naturally occurring compound which reduces the sensation of pain and generates feelings of well-being?
Acetylcholine
Dopamine
Endorphin
Epinephrine
17443.A short Gap in the myelin sheath around a nerve fiber is called ______.
Dendrite
Axon terminal
Node of Ranvier
None of these
17444.Which of the following does not act as a neurotransmitter?
Acetylcholine
Glutamic acid
Epinephrine
Tyrosine
17446.The basic cyclic pattern of inspiration and expiration are established by a respiratory center within the ______.
Cerebellum
Medulla oblongata
Cerebral cortex
Thalamus
17447.Which one of the following pairs is incorrectly matched in regard to the principal actions of neurotransmitters?
Endorphins - involved in moods
Serotonin - involved in sleep cycle
Norepinephrine - plays a role in emotions
Somatostatin - inhibits pancreatic release of growth hormone
17448.Functions of smooth muscles, cardiac muscles, organs, and glands are regulated by ______ system.
Parasympathetic
Sympathetic
Central nervous
Autonomic
17449.Preganglionic neurons lie within the ______.
Parasympathetic nervous system
Sympathetic nervous system
Peripheral nervous system
Central nervous system
17450.Spinal cord and brain are wrapped in protective membranes known as ______.
Axomembranes
Meninges
Nodes of Ranvier
Myelin sheath
17451.Which portion of the brain is responsible for various emotions such as pleasure, fear, and happiness?
Thalamus
Reticular formation
Hypothalamus
Limbic system
17452.The difference in voltage between the inside and outside of a cell is called ______.
Spike potential
Action potential
Resting potential
Reaction potential
17453.Cocaine as a stimulant of the CNS interferes with the reuptake of ______ at synapses.
Acetylcholine
Dopamine
Oxygen
Epinephrine
17454.The cutaneous plexus and the papillary plexus consist of
Specialized cells for cutaneous sensations
A network of arteries to provide dermal supply
A network of nerves to provide dermal sensation
Gland cells that release cutaneous secretions