Nerves that bring nerve signals from the sense organs are called
A) motor nerves
B) spinal nerves
C) sensory nerves
D) all
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How many of the following statements are incorrect for parasites (A) Presence of un-necessary sense organs (B) Presence of adhesive organs & suckers (
Correct Answer - Two or 50% B and D are correct A and C are incorrect
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P : Sense organs recognise stimuli only. Q : Brain analyses the stimuli and sends proper responses.
C) Both P, Q correct
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Sense organ → A → Spinal cord → B → Motor nerve → Tissue Here A and B represents
(D) A = Sensory nerve, B = Brain
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The nerves that carry information from sensory organs to brain or spinal cord
D) Afferent nerves
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The nerves that carry information from brain or spinal cord to effecter organs
(C) Efferent nerves
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A cell (or group of cells) in a sense organ which is sensitive to a particular type of stimulus is called :
(C) receptor
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Conduction of nerve impulse occurs at a faster rate in medullated nerve fibre.
1. Medullated nerve fibres have myelin sheath around the axon. This myelin sheath is secreted by Schwann cells. 2. Myelin sheath prevents the loss of the impulse during conduction. 3. Myelin sheath...
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Sense organs: Collect the information and complete the chart.
Sense organ Location Function 1. Antenna Head Detect touch, smell and locate the food in vicinity 2. Eyes Head Provides mosaic vision, detect slightest movement of object, provide more sensitive vision but less resolution 3. Maxillary palp Mouth Detects smell and taste. 4....
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The nerve that carries hunger signals to brain ………
(B) Vagus nerve
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Organs having same anatomical structure but differ in their function are called homologous organs. Organs having different
Answer is (C) 1 and 2
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