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NERVOUS SYSTEM
1- The central nervous system consist of
a) Medulla b) Cerebrum c) Cerebellum d) All
2- Which one describes the path of a nerve impuls through a neuron ?
a) Cell body-Axon-Dendrite b) Dendrite-Cell body-Axon c) Axon-Cell body-Dendrite
3- Which is not a part of brain ?
a) Spinal cord b) Cerebrum c) Cerebellum d) Medulla
4- Which is not releated to its pair ?
a)Cerebrum Controls sense organs
b)Sensory neuron Takes stimuli
c)Medulla Controls mental activities
d) Motor neuron- Conducts stimuli
5- The ivvoluntary movements are controlled by the --------------------- of brain.
a) Spinal cord b) Cerebrum c) Cerebellum d) Medulla
6- The spinal cord is protected by
a) Ribs b) Breast bone c) Vertebrae d) All
7- A nerve cell that transmits impulses from a sense organ to the nervous system is known as
a) Sensory neuron b) Motor neuron c) Inter neuron
d) Plexus e) Ganglion
8- The fine branching extensions from the cell body of a nerve cell are called
a) Dendrites b) End brushes c) Terminal branches d) Ciliated epithelia e) Synapses
9- Of the following chemical substances, the only one related to the nervous system is
a) Gibberallic acid b) Acetylcholine c) Deoxyribonucleic acid d) Insulin e) Opsonin
10- Breathing rate is controlled by the respiratory centre located at the
a) Brain b) Larynx c) Trachea d) Aorta
11- Which one of the following is not a function of the cerebrum ?
a) Learning, reasoning and imagination
b) Controlling rate of respiration
c) Receiving sensations from different parts of the body
d) Controlling the voluntary movements of different organs
12- Which of the following does the autonomic nervous system control?
a) Sight b) Thinking c) Digestion d) Hearing e) Memory
13- A synapse is
a) Part of an axon b) Part of a neuron c) A gap between neurons d) A chemical impulse e) An electrical impulse
14- ---------------------- is the control center for such involuntary activities as breathing and heartbeat
a) Cerebrum b) Cerebellum c) Medulla
d) Spinal cord e) Hypothalamus
15- ----------------------- controls balance and voluntary muscular coordination
a) Cerebrum b) Cerebellum c) Medulla d) Spinal cord e) Hypothalamus
16- ------------------------ controls such functions as memory and reasoning
a) Cerebrum b) Cerebellum c) Medulla d) Spinal cord e) Hypothalamus
17- ------------------------- serves as a center of reflex actions
a) Cerebrum b) Cerebellum c) Medulla d) Spinal cord e) Hypothalamus
18-Which of the following is not involved in the process of synaptic transmission?
a)The release of a neurotransmitter form synaptic vesicles at the pre-synaptic neuron.
b)The destruction of the post-synaptic membrane after the neurotransmitter has come in contact with it.
c)Diffusion of the neurotransmitter across the synaptic cleft.
d)Destruction of the neurotransmitter after transmission of the impulse has taken place.
19- The neuron process that directs the impulse toward the cyton is the;
a) Axon b) Dendrite c) Synapse d) Sarcomere
20- What part of the brain serves the purpose of controlling balance, gait, and coordination?
a. inferior colliculus
b. hypothalamus
c. thalamus
d. cerebellum
e. corpus callosum
21- Entry of sodium ions into a nerve cell causes the cell to
a. do nothing.
b. repolarize.
c. hyperpolarize.
d. depolarize.
e. rejuvenate
22- The ANS efferents supply innervation to
a. heart muscle.
b. smooth muscle cells.
c. gland cells.
d. All of the above.
e. None of the above.
23- Epinephrine is also known as
a. dopamine
b. acetylcholine
c. serotonin
d. noradrenaline
e. adrenaline
24- Which of the following is a part of the nervous system related to the balance of our body?
A) Brain B) Cerebellum
C) Spinal bulb D) Spinal cord
E) Autonomic nervous system.
25- The space between a nerve ending and the cell innervated by the nerve ending is called the
a. neuron
b. ganglion
c. gap junction
d. synapse
e. quanta
26- The "all-or-none" principle essentially means that
a. all neurons in a reflex pathway depolarize at the same time.
b. when a neuron depolarizes to threshold, it is committed to depolarizing all along its axon.
c. either all sodium ions exit the neuron during depolarization, or none of the do.
Dendrites
receive nerve signals.
elicit nerve signals.
are tooth-like in appearance.
ALL of the above.
NONE of the above.
A) to gıve a shape to the braın
B) to protect the whıte matter
C) to ıncrease the volume of braın
D) to dıstınguısh sensory and mortor regıons
E) to ıncrease the surface area of the cortex
2. The medulla oblangata ıs known as the lıfe node due to ıts ımportance ın the regulatıon of body system.Whıch of the followıng systems are regulated by the medulla oblangata?
B)Excretory-Respıratory-Cırculatory
C) Endocrıne-Respıratory-Dıgestıve
D)Cırculatory-Endocrıne-Dıgestıve
E)Excretory-Endocrıne-Dıgestıve
3. Whıch of the followıng ıs not a feature of the cerebellum?
A)Movement and balance of the body.
B)Movement of muscles.
C)A greater sıze compared to the other organs
E) Grey matter protruding into white matter
4. The transmission of an impulse along an axon is illustrated in the above figure. Which of the following is incorrect about this transmission?
A)K+ ions diffuse out at region 1
B)CO2 consumption is high in region 2
C)NA+ diffuse out at region 3
D)Average energy consumption at region 4
E)No impulse at region 5.
5. * inclusion of the thırd ventricle
* inclusion of the optic lobe
* inclusion of a center which regulates muscle tetanus and position of the body.
Which of the following brain components posses the above propertıes?
A) Cerebrum B) Mid brain C) Hind brain D) Cerebellum E) Medulla oblangata
6. * inclusion of the fourth ventricle
* a ventricle wall containing cells of grey matter
* grey matter occuping the inner portion while the white matter occuping the outer portion .
* the right hemisphere controls the left side of the body
Which of the following organs possess the above properties?
A) Medulla oblangata
B) Spinal column
7. An organism may respone to a stimulus by a reflex.Which of the following structures participate to the reflex?
A) Receptor-Sensory neuron-Interneuron motor neuron-effector
B) Receptor-İnter neuron-motor neuron sensory neuron-effector
C) Effector-motor neuron-sensory neuron- inter neuron-receptor
D) Effector-sensory neuron-motor neuron - inter neuron-receptor
E) Motor neuron-receptor-effector-motor neuron sensory neuron
8) 1. paralysis
2. no flight
D) 1 and 2 ventricle E) 4 ventricle
Anterior Posterior Lateral
column column column
the hypothalamus?
A) control of pituitary function
B) osmotic balance of the body
C) regulation of sleep and appetite
D) regulation of the blood pressure
E) The center of circulation
F)
12. Which of the following statements is true for the above illustration of neurons?
A) Less cells are stimulated
B) The impulse can affect a narrow area
C) The impulse can affect a wide area
E) An impulse is effectiveon a single structure
13.The crossover point of nerves where the left and right side nerves merge is located at which of the following structure?
A) Cerebellum B) Cerebrum C) Midbrain
D) Medulla oblangata E) Spinal column
14. Which of the following changes is not observed in a pegion if its brain is removed?
A) no sensation of hunger
B) erratic movement
C) movement only when hit
D) loss of ability to fly
E) loss of ability to generate sound
15. The impulses generated by light and sound are tarnsmitted by the same methods to the brain but have different
interpretations.Which of the following best describes the above events?
A) The duration of interpretetation is different
B) The evalution of impulses is by different lobes of the brain
C) The number of neurons transmitting the impulses is different
D) The diameter nad length of neurons are different
E) Different chemicals are releasedat the brain
16. Which of the following is not an aspect of impulse tranmission?
A) Electrical changes
B) Chemical changes
C) Consumption of energy
D) Heat release
E) Changes in transmission rate
17. Which of the following is the same in both reception of stimuli and their transmission to the CNS?
A) The way in which the stimuli are generated
B) The evaluation center of the brain
C) The events of impulse transmission
D) The threshold level of the impulse
E) The number of impulses on a neuron
18.Which of the following is not a hereditary
reflex of a human being?
A) Knee-jerk reflex
B) Nervous twitch
C) Constriction of pupils
D) Dialation of pupils
E) Plaing the piano
19. Which of the following is not a neurotransmitter?
D) Serotonin E) Adrenaline
20. 1. Receptor
2. Motor neuron
3. İnterneuron
4. Sensory neuron
5. Effector
List the correct order of structures involved In impulse transmission?
A) 1-2-3-4-5 B) 2-1-3-4 C) 4-5-1-3-2
D) 1-3-2-4-5 E) 1-3-2-4-5
21. Which organism has a primitive form of Central Nervous System?
A) Paramecium
B) Sponge
C) Hydra
D) Planarian
E) Earthworm
22. Which of the following is not related to the
nervous system?
A) The rate of impulsion transmission along to the neuron is constant
B) The receptors are stimulated to generate impulses
C) The sensory neurons transmit the impulses to the CNS
D) The motor neurons transmit the impulses to the
effector organ
E) Each level of stimuli results in impulse generation
23. A human can move his foot if it is bitten When he is
sleeping.Which of the following structures are involved
in this involuntary action?
A) Spinal card
B) Cerebellum
C) Forebrain
D) Medulla oblangata
E) Pons
24.Which of the following organisms has a complete
nerves system?
A)Earthworm
B)Scorpion
C)Planarian
D)Hydra
25-The central nervous system consist of
a) Medulla b) Cerebrum
c) Cerebellum d) All
26-Which is not a part of brain ?
a) Spinal cord b) Cerebrum
c) Cerebellum d) Medulla
27- A nerve cell that transmits impulses from a sense organ to the nervous system is known as
a) Sensory neuron b) Motor neuron c) Inter neuron d) Plexus
e) Ganglion
28- Which of the following does the autonomic nervous system control ?
a) Sight b) Thinking c) Digestion d) Hearing e) Memory
29- A synapse is..
a) Part of an axon
b) Part of a neuron
c) A gap between neurons
d) A chemical impulse
e) An electrical impulse
30- Stimulation of the parasympathetic nervous system causes each of the following EXCEPT
A- Release of bile
B- Acceleration of the heart rate
C- Constriction of bronchi
D- Pupillary constriction
E- Increased peristalsis in the gastrointes- tinal tract
31- Contains centers responsible for control of blood pressure and respiration
A- Cerebellum
B- Olfactory bulb
C- Medulla
D- Hypothalamus
E- Thalamus
32- Impulses carried from the central nervous system to the effector organs are conducted via the
A- Schwann cells
B- Dendrites
C- Axon
D- Cerebrospinal fluid
E- Mylin sheath
33- Involved in processing odors
A- Cerebellum
B- Olfactory bulb
C- Medulla
D- Hypothalamus
E- Thalamus
34- Integrates sensory information from somatic receptors
A- Cerebellum
B- Olfactory bulb
C- Medulla
F-
Thalamus
35- Impulses carried from the central nervous system to the effector organs are conducted via the
A- Schwann cells
B- Dendrites
C- Axon
D- Cerebrospinal fluid
E- Mylin sheath
36-Which of the following is not aspect of impulse transmission?
A) Electrical changes
B) Chemical changes
C) Heat release
D) Consumption of energy
E) Changes in transmission rate
37-The hypothalamus is located at the core of the mid brain.
Which of the following is not the function of the hypothalamus?
A) Control of pituitary function
B) Osmotic balance of body
C) Regulation of skep and appetite
D) Regulation of blood pressure
E) Regulation of blood circulation
38-Which eye defect cannot be corrected with lenses?
A) hypermetropia
B) astigmatism
C) color blindness
D) myopia
39-Which layer of eye is sensitive to the light?
A) chroid
B) sclera
C) retina
D) pupil
40-Which one describes the path of a nerve impuls(stimulus) through a neuron?
A) axon-cell body-dendrite
B) dentrite-axon-cell body
C) cell body-axon-dentrite
D) dentrite-cell body-axon
41-Which is not a part of brain?
A) cerebrum
B) cerebulum
C) spinal cord
D) medulla
42-The spinal cord is protected by the;
A) ribs
B) vertebrae
C) skull
D) breast bone(sternum)
44-Which is not releated ti its pair?
A) sensory neuron-takes stimuli
B) medulla-controls mental activity
C) cerebrum-controls sense organs
D) motor neuron-conducts stimuli
45-The central nervous system consist of :
A) brain
B) spinal cord
C) medulla
D) all
46-Which of the following parts of brain controls the mental activities?(thought
memory)
A)Cerebrum B)Cerebellum C)Medulla Oblongata D)Hypothalamus E)Pituitary
47- I.dendrites
II.axon
III.cell body
Which of the above are found in the structure of a neuron (nerve cell)
a)I only b)II only c)I,II d)I,III e)I,II,III
48-Which of the following organism has the most primitive nervous system?
a)worms b)coelenterates
c)arthropods d)amphibians
e)reptiles
49- which of the following parts of brain is involved on the balance of the body?
a)cerebrum b)medulla oblongata
c)thalamus d)hypothalamus
e)cerebellum
50- Although it is cranial nerve, it controls the activities of same internal organs. Such as stomach, heart and intestine. This nerve is known as_________
a)facial b)optic c)vagus
d)auditory e)olfactory
51- The part of the human brain having control over intelligence and personally ls A. cerebrum . Cerebellum . Pons D. thalamus E. medulla oblongata
52- maintains balance and muscular coordination
A. cerebellum B. cerebral cortex C. hypothalamus D. olfactory lobes . Medulla oblongata
53- Which of the following is an enzyme that performs an important function in the nervous system?
A.catalase B. DNA polymerase C. cholinesterase
D. lysozyme E. Peptidase
54-Motor neuron impulses are transmitted to skeletal muscle by
A. acetylcholine . C. Secretin
55- is a highly'differentiated cell associated with rapid nerve transmission
A. zygote B. Erythrocyte C. Pollen D. Schwann cell E. sperm
56-which of the following tissues doesnt receive direct signals from the parasympathetic nerves:
A. Salivary glands
B. Heart
C. Stomach
D. Blood vessels in the hands
E. Urinary bladder
57-in which of the following organs do the sympathetic and parasympathetic systems function reciprocally (i. e. Have effects opposing one another)
A. The iris of the eye.
B. The control of heart rate
C. The control of gastrointestinal activity.
D. The control of bronchioles in the lung.
E. All of the above
58- A nerve impulse will move fastest in a nerve that
a. has only electrical synapses
b. has a large cross-sectional area
c. is surrounded by Schwann cells
d. a and b
e. a, b and c
59- The peripheral nervous system can be divided into
a. the sensory and motor divisions
b. the brain and spinal cord
c. the autonomic and motor divisions
d. the somatic and sensory divisions
e. the somatic and motor divisions
60- Which is not found in or considered part of the central nervous system?
a. brain
b. spinal cord
c. astrocytes
d. meninges
e. Schwann cells
16.