Human Sensory Organs

Q.

Draw a labeled structure of the human brain. Write the functions of three parts of the brain?

Q. Correct the statement or mention if it is true-
Nerve impulses takes messages from brain via spinal cord to sense organs and vice versa.

Q.

Define nervous tissue

Q.

Where are thermoreceptors located?

Q. How do hairs provide the sensation of touch? ​

Q. In an event of hand touching a hot object and taken back immediately, ________acts as a receptor and _____acts as effector organ.

1. Skin, muscles
2. Muscles, skin
3. Hand, hand
4. Fingers, Upper arm

Q. Why do people who are visiting the press for first time find the sounds in the printing press uncomfortable, but people working there for long time may not find it uncomfortable?

1. Stimuli is not specific to give a response
2. Stimuli is weak to create a response
3. Constant stimuli goes unnoticed
4. Receptors are weak to detect stimuli

Q. Which of the following is a simple form of learned behaviour?

1. Dominance
2. Reflex
3. Instinct
4. Imprinting
5. Habituation
6. Both D and E

Q. Pls give a brief report on stem cells...fully explained...thmk u

Q.

When your finger gets accidently caught at the door, the pain message is sent to your brain through:

1. Sensory Receptors

2. Medulla Oblangata

3. Homeostasis

4. Caffeine

Q. Name the bioluminescent tunicate. To which class does it belong?

Q. In stomach pain, the associated nerve cells are

1. Commissural interneurons
2. Motor neurons
3. Inteneurons
4. Sensory neurons

Q. Somaesthetic or post central area is responsible for

1. Initiation of motor impulses for voluntary muscles
2. Initiation of motor impulses for involuntary muscles
3. Perception of pain, touch and temperature
4. Co-ordination of speech

Q. How do you feel when you are very hungry? How would you describe it? For example, sometimes we jokingly say "I am so hungry I could eat an elephant!"

Q. How do you come to know that you are hungry?

Q. Afferent nerves arising from the spinal cord are said to be sensory nerves. Give reason?

Q. Role of acidic H in case of tautomerism. Why it is not present in quinone and present in 3 ethyfuran ( c6H4O).