Physio Final
In peripheral nervous system, the preganglionic neurons secrete - A) Adrenaline B) Serotonin C) AcetylCholine D) Dopamine
Acetylcholine
The neuron cell is made up of which of the following parts? A. Axon B. Dendrite C. Nucleus D. All of the Above
All of the above
Acetylcholine is a neurotransmitter that provides for communication between muscles and nerves. When there is a problem with the interaction between acetylcholine and the acetylcholine receptor sites on the muscles which condition(s) can occur? A. Myasthenia gravis B. Botulism C. Multiple sclerosis D. A and B
A and B
How do neurons communicate with one another? A. Electrically B. Chemically C. Through weak radio-wave-like impulses D. A and B
A and B
Neurons come in which different type(s)? A. Sensory B. Motor C. Skeletal D. A and B; A and B
A and B
The postganglionic neurons of parasympathetic nervous system secrete - A) GABA B) Epinephrine, C) AcetylCholine D) Dopamine
AcetylCholine - (technically the main neurotransmitter in postganglionic neurons are norepinephrine but can produce Ach)
Supporting cells located within the CNS are collectively called _____. A) Neuroglia B)Astrocytes C) Perikaryon D) Satellite cells
Astrocytes
Which branch of the nervous system is directly responsible for controlling your heart rate, breathing rate and blood pressure? A) Central nervous system B) somatic nervous system C) autonomic nervous system
Autonomic Nervous System
Which neurotransmitter has been implicated in major depressive disorder (commonly called as depression)? A. Acetylcholine B. GABA C. Serotonin D. All of the above
C. Serotonin
Oligodendrocytes are located in the _____PNS or CNS____
CNS
Which branch of the nervous system contains the brain and spinal cord? A) Autonomic nervous system B) peripheral nervous system C) central nervous system D) somatic nervous system
Central Nervous Sysem
Which of the following toxins blocks AcetylCholine Receptors? A) Strychnine B) Neostigmine C) Tetrodotoxin D) Curare
Curare
Which of the following types of cells line the ventricles and are involved in production of Cerebrospinal Fluid (CSF)? A) Astrocytes B) Schwann cells, C) Ependymal cells, D) Oligodendrocytes
Ependymal cells
A sleep-inducing drug Valium has an effect on ____ to inhibit neural transmission. A) Epinephrine B) Norepinephrine C) GABA receptor D) Dopamine E) GABA
GABA receptor
Which of the following types of cells is the most common in the CNS? Astrocytes
Oligocytes, Neurocytes, Celiac cells, Astrocytes
Which type of neuron transmits a signal from CNS to the sensory organ? A) Sensory B) Relay C) Motor
Motor
Which types of neurons are also known as efferent neurons? A) Motor B) sensor C) interneurons D) microglial neurons
Motor
15. Multiple sclerosis is a disease that attacks the _______ of neurons in the CNS. A) Myelin sheaths B) Axon terminals C) Sodium channels D) Nicotinic receptors
Myelin sheath
Which of the following structures allow for faster transmission of action potential? A) axon B) cell body C) myelin sheath D) dendrites
Myelin sheath
The human nervous system is capable of a wide range of functions. What is the basic unit of the nervous system? A. Glial cell B. Meninges C. Neuron D. Cerebrospinal fluid
Neuron
Myasthenia gravis is due to ____ receptors being blocked and destroyed by antibodies. A) Epinephrine B) Nicotinic/Acetylcholine C) Transient
Nicotinic/Acetylcholine
Schwann cells are located in the ____PNS or -------- CNS
PNS
Dopamine is an important neurotransmitter. Which of the following diseases or disorders will be the result of dopamine depletion or death of dopaminergic neurons? A. Multiple sclerosis B. Schizophrenia C. Parkinson disease D. Seizure disorder
Parkinson Disease
The drug ____ blocks the reuptake of serotonin into presynaptic axons. A) Prozac B) Valium C) Xanax D) Deprenyl
Prozac
Right after eating a heavy lunch, you decide to take a nap. Which of the following will occur during the nap phase? A) Pupils will dilate, B) sympathetic nervous system will get activated C) adrenergic receptors will be activated D) Pupils will constrict
Pupils will constrict (parasympathetic nervous system constricts pupils)
The progression of a nerve impulse with the nodes of Ranvier is called _______. A) Saltatory conduction, B) Transmission C) Unmyelinated conduction D) Relative conduction
Saltatory conduction
Dopamine is an important neurotransmitter. Which of the following diseases or disorders will be the result of dopamine excess or overactive dopaminergic neurons? A. Multiple sclerosis B. Schizophrenia C. Parkinson disease D. Seizure disorder
Schizophrenia
Which type of neuron transmits a signal from a sensory organ to the CNS? A) Sensory B) Relay C) Motor
Sensory
Which types of neurons are also known as afferent neurons? A) Motor B) sensory C) interneurons, D) microglial neurons?
Sensory
Olfaction (Smell) is a - A) Special sense B) general sense C) motor sense
Special sense
While taking a walk in the park, you suddenly encounter a snake and you start to run away from it. During this situation, which of the following occurs? A) The pupils constrict B) the parasympathetic nervous system responds C) the sympathetic nervous system responds
Sympathetic Nervous System responds
For an action potential to take place, the nerve impulse needs to reach A) half-stimulus B) resting membrane potential C) threshold stimulus D) quarter stimulus
Threshold stimulus
Olfactory epithelium is composed of __ A)sensory cells B) supporting cells C) basal cells D) all of the above?
all of the above