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What are Multipolar neurons,Bipolar neurons and Unipolar neurons
explain reflex action
what is homeostasis?
Is giving a sudden brake comes under reflex action?
Please explain me the Conduction of Nerve Impulse in simple words
MECHANISM OF VISION
What is homoestasis?
mechanism of hearing and vision .
explain each 4 3marks
Ablation of the stellate ganglion causes a) dilatation of ipsilateral pupil b) vasodilatation of ipsilateral arm c) postural hypotension d)loss of consensual light reflex.
Why the membrane of a neuron is polarised?
EXPLAIN THE ROLE OF DIFFERENT PARTS OF INNER EAR IN HUMAN WITH DIAGRAM
plz explain me generation and conduction of nerve impulse ?
nice flow chart n video on the mechanism of hearing .Thnx meritnation!
HOW DOES LIGHT DISSOCIATE OPSIN FROM RATINAL
what is amygdale and hippocampus?
give me a labelled diagram of rib cage.
are yellow spot and blind spot the same or they different
WHY AND HOW IS THE MEMBRANE OF NEURON POLARISED ?
what is refractory period?
explain human brain its functions??????????????
What is the composition of Nissl's granules?
how many bones in human skull?
is there semester system in 11 th science in cbse?
explain about the sodium potassium pump !
what is a nerve impulse ? how it is conducted hrough a nerve fibre ? mention any 2 factors which can increase the velocity of a nerve fibre ?
cn u label axoplasm n axoplasm fluid so dat ill be able to undrstnd the conc of k+ n na+ inside n outside d axon!! plz plz plz ellaborate
Structure of neoron
Please ...can you explain me what is reflex action ?
what is saltation conduction of nerve impulse . describe condction o nerve impulse at synapse?
difference between fibrous joint and catilagenous joint
what is stimulus
name the fluid present in the synaptic cleft between the pre and post synaptic neurons.
Wat are the differences between rods and cones.Give atleast 4 points
where is the blind spot is present?and function of blind spot?
what do u mean by concentration gradient?
what do mean by polarised cells?????????????plese reply fast........b'cause i have eam day after 2morrow
Assertion and Reason
Directions: The following question has two statements, Assertion and Reason.
Answer the question by choosing any one of the four responses.
Assertion: Brain and spinal cord are called modulators.
Reason: Their neurons receive a stimulus and set up a sensory impulse.
If both Assertion and Reason are true and Reason is the correct explanation of Assertion
If both Assertion and Reason are true but Reason is not the correct explanation of Assertion
If Assertion is true but Reason is false
If Assertion is false but Reason is true
labelled diagrams of the following:
(a) Neuron (b) Brain (c) Eye (d) Ear
structure of brain
name the fluid present in the cochlea of the inner ear.
the pneumotaxic centre in body is ....1] heart 2] lung 3] medulla 4] liver
Cones are more numerous than rods.
Rods are more numerous than cones.
Rods are more sensitive to light than cones.
Cones produce sharper images than rods.
can i have a labelled diagram of vestibular appratus ?
steps of making a working model of reflex arc as my project for exhibition
dear experts , i have some questions here
1.the hormone which when deficient causes cushings syndrome .
2.give two points of difference between cretenism and myxoedema .
3.can there be dna replication without cell division . comment.
4.enumerate the different types of nerve fibres depending on nature and function .
5 . a person has excessive thirst and production of large amount of urine . the doctor did not advice him to stop taking sugar . name the disese and explain what happens in it .
6.difference between glomerular filtration and ultra filtration .
please i need these answers by tomorrow night .its a request .
the following processes:
Polarisation of the membrane of a nerve fibre
Depolarisation of the membrane of a nerve fibre
Conduction of a nerve impulse along a nerve fibre
(d) Transmission of a nerve impulse
across a chemical synapse
expilain mechanism of generation and conduction of nerve impulse?
Which of the following arrow diagrams represents the layers (from outside to inside) of retina correctly?
A) Photoreceptor cells →ganglion cells → bipolar cells
B) Photoreceptor cells→ bipolar cells → ganglion cells
C) Ganglion cells → photoreceptor cells →bipolar cells D) Ganglion cells → bipolar cells → photoreceptor cell
what is the exact location of hypothalamus?
which one of the following reflex do not include innervation of brain ...1] spnial reflex 2] cranial reflex 3] afferent reflex 4] efferent reflex
nerve fibers connecting ganglia of the same region are called
difference between rods and cones ?
Why we cannot see colours at night?A)
Iodopsin does not respond to dim light
Rhodopsin synthesis takes time in dark
Iodopsin breaks into scotopsin and retinene in dark
Only one pigment of cone cells is able to absorb light
what is the full form of GABA?
What does melatonin influences?
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