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What are Multipolar neurons,Bipolar neurons and Unipolar neurons
explain reflex action
what is homeostasis?
Why choroid is bluish in colour why it has more veins than arteries there?
Is giving a sudden brake comes under reflex action?
Please explain me the Conduction of Nerve Impulse in simple words
what is twilight vision and daylight vision
MECHANISM OF VISION
mechanism of hearing and vision .
explain each 4 3marks
Why the membrane of a neuron is polarised?
EXPLAIN THE ROLE OF DIFFERENT PARTS OF INNER EAR IN HUMAN WITH DIAGRAM
What is homoestasis?
plz explain me generation and conduction of nerve impulse ?
What is sympathetic and parasympatheticc system?give examples
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.
HOW DOES LIGHT DISSOCIATE OPSIN FROM RATINAL
what is amygdale and hippocampus?
are yellow spot and blind spot the same or they different
difference b/w electrical synapses and chemical synapses
WHY AND HOW IS THE MEMBRANE OF NEURON POLARISED ?
explain human brain its functions??????????????
The ions across the resting membrane are regulated by the sodium-potassium pump. The gaining of positive charge on the inner surface and negative charge on the outer surface of the membrane is maintained by the transport of
how many bones in human skull?
is there semester system in 11 th science in cbse?
explain about the sodium potassium pump !
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 ?
give me a labelled diagram of rib cage.
what is saltation conduction of nerve impulse . describe condction o nerve impulse at synapse?
what is LIMBIC SYSTEM????
please reply fast............................................
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
Our both eyes work together to fill up their blind spots. What happens when one eye is damaged i.e,it cannot function?
what do u mean by concentration gradient?
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
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 ?
why we cannot see uv rays
structure of brain
what is macula lutea?where it is present?show it with a diagram
name the fluid present in the cochlea of the inner ear.
what causes dizziness and vomiting sensation at high altitude?
describe how the nerve impulse is propagated in a non mylinated fibre
nice flow chart n video on the mechanism of hearing .Thnx meritnation!
1. Identify the endocrine glands which are associated with the following events/features.
(a) Releases hormones during emergency situations.
(b) Hormone released by this gland helps in the differentiation of T- lymphocytes.
(c) Deficiency during pregnancy leads to cretinism.
(d) Present in close contact with hypothalamus and controls other endocrine glands.
(e) Helps in maintaining the diurnal rhythms of sleep-wake cycle.
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?
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.
what happens if our body has only electrical synapses?
what is the exact location of hypothalamus?
difference between rods and cones ?
what is the full form of GABA?
What does melatonin influences?
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