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