1 Name the chief structural and functional units of the nervous system._______
2 Name the chemical signals which are slower, and initiate and widespread, prolonged
response often in a variety of tissues.______
3 Name the study of structures associated with irritability. ______
4 Name the part of the neuron, which carries impulse towards cell body._______
5 What is found between afferent and efferent neurons?_______
6 Name the neuron that conducts an impulse from a receptor organ to the CNS______________.
7 Name the neuron that transmits impulses from the CNS to an effector, such as a
muscle or gland._______
8 Name the neuron that function as integrating centre, located between sensory
neuron and a motor neuron.________
9 Name the neuron which secrete neurohormones.___________
10 Name the lipoprotein material that forms a sheathlike covering around some nerve_______
11 Name the fiber that conducts a nerve impulse away from a neuron cell body___________.
12 Name the nerve fiber that transmits impulses toward a neuron cell body._________
13 Name the portion of a nerve cell that includes a cytoplasmic mass and a nucleolus,
and from which the nerve fibers extend._______
14 Name the cell that surrounds a fiber of a peripheral nerve and forms the
neurolemmal sheath and myelin._______
15 Name the regular gaps in a myelin sheath around a nerve fiber. ________
16 Name the potential difference that results from the separation of charges along the
plasma membrane of a neuron or other excitable cell._______
17 Resting membrane potential disappears and is replaced by a new potential Name
that potential. _______
18 Impulses travel much more rapidly along which neurons? ________
19 Which sheath of neuron is particularly good conductor of electric impulse?_______
20 What can be the maximum length of a nerve fibre?________
21 At which rate nerve fibre can transmit impulses.________
22 Name the longest cell in our body.________
23 Name the active transport mechanism that concentrates sodium ions on the outside of a plasma membrane and potassium ions on the inside of the membrane_____________.
24 Name the stimulus that is strong enough to initiate an impulse__________.
25 Name the phenomenon in which an electric charge or polarity is lost on the surface
of a membrane.________
26 What is the measuring unit of resting membrane potential?_________
27 What is the normal resting membrane potential?_________
28 Name the sequence of electrical changes when a nerve cell membrane is exposed
to a stimulus that exceeds its threshold._______
29 Name the time period following stimulation during which a neuron or muscle fiber
cannot respond to a stimulus.________
30 Name the phenomenon in which a muscle fiber contracts completely when it is
exposed to a stimulus of threshold strength._______
31 From where the action potentials are generated._________
32 Name the type of nerve impulse conduction in which the impulse seems to jump
from one neurofibril node to the next._______
33 Name the tiny swelling on the terminal end of telodendria at the distal end of an ________
34 Name the junction between the axon of one neuron and the dendrite of another
neuron or effector cell.________
35 Name the space (junction) between the end bulbs and the dendrite of the next________
36 Name the neuron carrying the action potential toward a synapse.________
37 Name the chemical substance that the terminal end of an axon secetes that either stimulates or inhibits a muscle fiber contraction or an impulse in another neuron___________.
38 Name the synapse at which neurotransmitters that one neuron releases diffuse
across an extracellular gap to influence a second neuron’s activity.______
39 Name the neurotransmitter that certain neurons liberate. It is excitatory at
neuromuscular junctions and inhibitory at other synapses._______
40 Name the catecholamine neurotransmitter released from the axon ends of some
nerve fibers. _______
41 In the anterior region of the body of Planaria, there is a bilobbed mass composed of
how many ganglia?_______
42 Name the toxin that is poisonous to or destroys nerve tissue._______
43 Name a diffuse, two-demensinal plexus of bi-or multipolar neurons found in
cnidarian. The simplest pattern of invertebrate nervous system.______
44 Name the group of nerve cell bodies outside the central nervous system._______
45 Which invertebrate has the largest diameter of axon i.e. over ‘I mm?________
46 Carbohydrate, protein and fat metabolisms are controlled by which part of the brain._____________
47 Name the second cranial nerve._________
48 Name the thermoregulatory centre in human brain___________.
49 What is the main function of cerebellum?_________
50 Name the longest cranial nerve that supplies regions of body other than head____________.
51 Name the parts of brain which has the primary sensory and motor areas.________
52 Name the system under which heart-beat is controlled. _________
53-Name the structure formed by the union of thick ventral rami of 71h, a 98 and 10th pairs of spinal nerves.
54 Name the response that is under cerebral control and aimed to achieve definite_______
55 Name the responses in our internal organs without any knowledge to animal_____________.
56 Where the sensory ganglion connected with reflex action are located?________
57 Name a rodlike, supportive structure that runs along the dorsal midline of all larval
chordates and many adult chordates._______
58 Name the bundle of nerve fibers within the central nervous system.________
59 Name the group of three membranes that covers the brain and spinal cord.________
60 Name the outermost and toughest meninx covering the brain and spinal cord____________.
61 Name the weblike middle covering (meninx) of the CNS.______
62 Name the innermost meninx that is in direct contact with the brain and spinal cord___________.
63 Name the inferior-most portion of the brain stem between the pons and spinal cord______________.
64 Name the portion of the brain that coordinates skeletal muscle movement.________
65 Name the portion of the brain stem above the medulla oblongata and below the_______
66 Which group (invertebrates or vertebrates) posses georeceptors, hygroreceptors, proprioreceptors, baroreceptors, chemoreceptors, thermoreceptors,chemoreceptors?_______
67 Sensory receptors are cells that can convert environmental stimuli into what?_____________.
68 Tactile receptors are sensitive to what stimulus?_________
69 Which type of receptors are sensitive to pull of gravity?_______
70 Which receptors detect water content of air?________
71 Which receptors respond to mechanically induced changes caused by bending,
72 Phonoreceptors are sensitive to what?________
73 What receptros respond to pressure changes?________
74 What receptors respond to air and water borne chernicals?_________
75 Photoreceptors are sensitive to what stimulus?___
76 All receptors are ; that is, they convert one form of energy into other.
77 Sensilla in arthropods are?_____
78 Which sex attractant is secreted by female Bombyx mon’?_
79 Crickets, grasshoppers and cicadas possess phonoreceptors called.__
80 Most arachnids possess phonoreceptors in their cuticle called._
81 Centipedes have phonoreceptors called.____
82 Mass of bright red photoreceptor granules in Euglena is called.
83 Ocelli contain light sensitive cells called.____
84 Ocelli are photoreceptors found in invertebrate phyla mollusca, arthropod, and_____________.
85 Compound eyes in insects consist of many (thousands) distinct units called, what?________________.
86 Compound eyes are found mong invertebrates in bivalve molluscs, arthropods, and________________
87 Complex camera eyes among invertbrates are found in which groups?
88 In which medium, air or water, sound travels both faster and farther?
89 Electroreceptors in Scoliodon, and many fishes, some amphibians, and platypus are______
90 On what region of body of a fish, head or trunk, neuromasts are not present?________________.
91 Which functional unit/units (auditory/ vestibular) are present in human ear?_______________
92 In which group of animals tympanum or tempanic membrane first evoluved?______________
93 Between which two parts of vertebrate ear oval window is located?
94 Name the ossicles in human ear.____
95 What is the name of component of inner ear which is concerned with hearing?___________
96 Whether in frogs, matig calls are of high or low frequency sound?
97 Which component of ear senses equilibrium and balance in vertebrates?
98 Humans can hear sounds within a range of.___
99 What is the name of sensory receptor in man that responds to pain, severe heat,cold, chemicals?_____
100 Which organ in rattle snakes and other pit vipers have heat sensitive receptors?_______________
101 Which are the receptors on skin sensitive to light touch?_______
102 Mechanoreceptors in skin of human beings are called. __________
103 Pacinian corpuscles are receptors for which stimulus? ___________
104 Organs of Ruffini are receptors for which sense.___
105 Bats, shrews, whales, and dolphins can determine distance and depths by a form of
106 Jacobson’s (vomeronasal) organs are best developed in which animals?___
107 Reptiles and birds have no taste buds on their tongues, instead in what organ?_______________
108 Which animals have taste buds on skin?_____
109 Name the clear fluid that fills anterior and posterior chambers of the eye ball._____________
110 Name the process of focusing the light rays precisely on retina. __
111 Name the transparent membrane which is moveable and cleans and protects the
eye in birds and other vertebrates.____
112 Name the reptile which has a complete median eye with lens, nerves, and retina._______________
113 Name the photoreceptor cells in retina. ____
114 Name the light absorbing pigment in .rods of retina of eye._______.
- sensory neuron (receptor or afferent).
- motor (effector or efferent) neuron. B
- . interneuron.
- cell body.
- neurofibril node.
- resting membrane potential
- active membrane potential.
- myelinated neurons.
- myelin sheath
- 10 meter.
- 130 meter per second.
- nerve cell.
- sodium-potassium ATPase pump.
- threshold stimulus.
- millivolts (my).
- about -70 my.
- action potential.
- refractory period.
- all-or-none law.
- neurofibril nodes.
- saltatory conduction.
- end bulb (synaptic button/knob)
- synaptic cleft.
- presynaptic neuron
- chemical synapse.
- nerve net
- optic nerve
- co-ordination of voluntary activities.
- vagus nerve
- cerebral cortex
- autonomic system
- cauda equina
- voluntary response
- autonomic reaction
- dorsal root
- dura mater.
- pia mater
- medulla oblongata.
- nerve impulse
- tympanic or tympanal organs
- slit sense organs
- organs of tomosvary
- retinular cells
- squids and octopuses (cephalopods)
- ampullary organs
- head region
- both auditory and vestibular
- middle and inner ear
- malleus, incus, stapes
- high frequency
- semicircular canals
- 20 – 20000 cycles per second
- pit organs
- bare nerve endings and tactile corpuscles
- bulbs of krause
- touch and pressure
- touch/ pressure
- sonar or biosonar
- snakes and lizards
- amphibia and fishes
- aqueous humor
- nictitating membrane
- tuatara (Sphenodon)
- rods and cones