What is the role of the brain in reflex action class 10th

Cerebrum is the main part of the brain, which helps in thinking, and processing information, and memory, and what-not. It's the center of human intelligence. Hypothalamus has many vital, like so-important-you-can't-live-without-it functions like: • releasing hormones for the pituitary gland to produce growth hormones, • regulating body temperature, • controlling emotions like hunger, thirst, lust etc. Pituitary gland is the master gland of our body. And as the name suggests, it: • regulates the work of all other endocrine glands, and • releases the Growth-Stimulating Hormone (GSH), which results in the height and basically, the overall growth of the body. Hope this helps and if I'm mistaken, I apologize and please let me know. :) Diencephalon consists of pineal gland, thalamus and hypothalamus. Pineal gland is located near the centre of the brain. It releases melatonin which affects the wake and sleep patterns. It also affects reproduction development. Thalamus gland is located above the brain stem which relays sensory and motor signals to the brain (specifically, the cerebral cortex). Hypothalamus is located at the base of the brain near the pituitary gland. It plays an important role in the release of many hormones.For example, when the level of growth hormone is low, the hypothalamus releases growth-hormone-releasing-factor which stimulates the pituitary gland to release the growth hormone. It also regulates body temperature. hope this explanation helped you and if ther...

The brain is covered by a three layered system of membranes. These membranes are called meninges. Cerebrospinal fluid is filled between the meninges. The CSF provides cushion to the brain against mechanical shocks. Furthermore, the brain is housed inside the skull for optimum protection. The human brain can be divided into three regions, viz. forebrain, midbrain and hindbrain. Parts of Human Brain • Forebrain: It is composed of the cerebrum. • Midbrain: It is composed of the hypothalamus. • Hindbrain: It is composed of the cerebellum, pons and medulla oblongata. Some main structures of the human brain are explained below. Cerebrum The cerebrum is the largest part in the human brain. It is divided into two hemispheres, called cerebral hemispheres. Functions of cerebrum • The cerebrum controls the voluntary motor actions. Actions which facilitate mobility are called motor actions. For example, movement of hands and feet are motor actions. • It is the site of sensory perceptions, like tactile and auditory perceptions. Sense of touch is called tactile percetption. Sense of hearing is called auditory perception. • It is the seat of learning and memory. Hypothalamus The hypothalamus lies at the base of the cerebrum. It controls sleep and wake cycle ( circadian rhythm) of the body. It also controls the urges for eating and drinking. Cerebellum Cerebellum lies below the cerebrum and at the back of the whole structure. It coordinates the motor functions. When you are riding your bi...

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Question 1. What is the difference between a reflex action and walking? Answer: A reflex action is an automatic reaction for each stimulation in our body initiated by our sense responses e.g., we move our hand immediately after a contact with hot object. It is a direct controlled action. Walking is completely controlled by our brain. On the other hand, is a voluntary action. It requires complete coordination of muscles, bones, eyes etc. Reflex action Walking a) Spinalcordcontrols reflex action. a) Brain controls walking. b) It is a spontaneous immediate response to a stimulus. It happens without the will of individual. b) It is a voluntary action which occurs with the will of individual. Question 2. What happens at the synapse between two neurons? Answer: Synapse allows delivery of impulses (in chemical form) from neurons to other neurons and the target point, such as muscle cells. Tiny gap between the last portion of axon of one neuron and the dendron of the other neuron is known as a synapse. At a time, it acts as a one way path and transmits impulses in one direction only. Question 3. Which part of the brain maintains posture and equilibrium of the body? Answer: A part of hindbrain-cerebellum is responsible for maintaining posture and equilibrium of the body. Question 4. How do we detect the smell of an agarbatti (incense stick)? Answer: Forebrain is responsible for thinking work. It has separate areas that are specialized for hearing, smelling, sight, taste, touch etc....

The brain is covered by a three layered system of membranes. These membranes are called meninges. Cerebrospinal fluid is filled between the meninges. The CSF provides cushion to the brain against mechanical shocks. Furthermore, the brain is housed inside the skull for optimum protection. The human brain can be divided into three regions, viz. forebrain, midbrain and hindbrain. Parts of Human Brain • Forebrain: It is composed of the cerebrum. • Midbrain: It is composed of the hypothalamus. • Hindbrain: It is composed of the cerebellum, pons and medulla oblongata. Some main structures of the human brain are explained below. Cerebrum The cerebrum is the largest part in the human brain. It is divided into two hemispheres, called cerebral hemispheres. Functions of cerebrum • The cerebrum controls the voluntary motor actions. Actions which facilitate mobility are called motor actions. For example, movement of hands and feet are motor actions. • It is the site of sensory perceptions, like tactile and auditory perceptions. Sense of touch is called tactile percetption. Sense of hearing is called auditory perception. • It is the seat of learning and memory. Hypothalamus The hypothalamus lies at the base of the cerebrum. It controls sleep and wake cycle ( circadian rhythm) of the body. It also controls the urges for eating and drinking. Cerebellum Cerebellum lies below the cerebrum and at the back of the whole structure. It coordinates the motor functions. When you are riding your bi...

Question 1. What is the difference between a reflex action and walking? Answer: A reflex action is an automatic reaction for each stimulation in our body initiated by our sense responses e.g., we move our hand immediately after a contact with hot object. It is a direct controlled action. Walking is completely controlled by our brain. On the other hand, is a voluntary action. It requires complete coordination of muscles, bones, eyes etc. Reflex action Walking a) Spinalcordcontrols reflex action. a) Brain controls walking. b) It is a spontaneous immediate response to a stimulus. It happens without the will of individual. b) It is a voluntary action which occurs with the will of individual. Question 2. What happens at the synapse between two neurons? Answer: Synapse allows delivery of impulses (in chemical form) from neurons to other neurons and the target point, such as muscle cells. Tiny gap between the last portion of axon of one neuron and the dendron of the other neuron is known as a synapse. At a time, it acts as a one way path and transmits impulses in one direction only. Question 3. Which part of the brain maintains posture and equilibrium of the body? Answer: A part of hindbrain-cerebellum is responsible for maintaining posture and equilibrium of the body. Question 4. How do we detect the smell of an agarbatti (incense stick)? Answer: Forebrain is responsible for thinking work. It has separate areas that are specialized for hearing, smelling, sight, taste, touch etc....

CBSE Class 10 Science Notes Chapter 7 Control and Coordination Pdf free download is part of CBSE Class 10 Science Notes Chapter 7 Control and Coordination Control and Co-ordination in Animals: Nervous system and endocrine system. In animals, the nervous system and hormonal system are responsible for control and co¬ordination. Receptors: Receptors are the specialized tips of the nerve fibres that collect the information to be conducted by the nerves. Receptors are in the sense organs of the animals. These are classified as follows : • Phono-receptors: These are present in inner ear. Functions: The main functions are hearing and balance of the body. • Photo-receptors: These are present in the eye. Function: These are responsible for visual stimulus. • Thermo-receptors: These are present in skin. Functions: These receptors are responsible for pain, touch and heat stimuli. These receptors are also known as thermoreceptors. • Olfactory-receptors: These are present in nose. Functions: These receptors receive smell. • Gustatory-receptors: These are present in the tongue. Functions: These helps in taste detection. Nervous System: The nervous system is composed of specialized tissues, called nervous tissue. The nerve cell or neuron is the functional unit of the nervous system. It is the nervous system which is mainly responsible for control and coordination in complex animals. Functions of the nervous system • Nervous system receives information from the environment. • To receive t...

Cerebrum is the main part of the brain, which helps in thinking, and processing information, and memory, and what-not. It's the center of human intelligence. Hypothalamus has many vital, like so-important-you-can't-live-without-it functions like: • releasing hormones for the pituitary gland to produce growth hormones, • regulating body temperature, • controlling emotions like hunger, thirst, lust etc. Pituitary gland is the master gland of our body. And as the name suggests, it: • regulates the work of all other endocrine glands, and • releases the Growth-Stimulating Hormone (GSH), which results in the height and basically, the overall growth of the body. Hope this helps and if I'm mistaken, I apologize and please let me know. :) Diencephalon consists of pineal gland, thalamus and hypothalamus. Pineal gland is located near the centre of the brain. It releases melatonin which affects the wake and sleep patterns. It also affects reproduction development. Thalamus gland is located above the brain stem which relays sensory and motor signals to the brain (specifically, the cerebral cortex). Hypothalamus is located at the base of the brain near the pituitary gland. It plays an important role in the release of many hormones.For example, when the level of growth hormone is low, the hypothalamus releases growth-hormone-releasing-factor which stimulates the pituitary gland to release the growth hormone. It also regulates body temperature. hope this explanation helped you and if ther...

Question 1. What is the difference between a reflex action and walking? Answer: A reflex action is an automatic reaction for each stimulation in our body initiated by our sense responses e.g., we move our hand immediately after a contact with hot object. It is a direct controlled action. Walking is completely controlled by our brain. On the other hand, is a voluntary action. It requires complete coordination of muscles, bones, eyes etc. Reflex action Walking a) Spinalcordcontrols reflex action. a) Brain controls walking. b) It is a spontaneous immediate response to a stimulus. It happens without the will of individual. b) It is a voluntary action which occurs with the will of individual. Question 2. What happens at the synapse between two neurons? Answer: Synapse allows delivery of impulses (in chemical form) from neurons to other neurons and the target point, such as muscle cells. Tiny gap between the last portion of axon of one neuron and the dendron of the other neuron is known as a synapse. At a time, it acts as a one way path and transmits impulses in one direction only. Question 3. Which part of the brain maintains posture and equilibrium of the body? Answer: A part of hindbrain-cerebellum is responsible for maintaining posture and equilibrium of the body. Question 4. How do we detect the smell of an agarbatti (incense stick)? Answer: Forebrain is responsible for thinking work. It has separate areas that are specialized for hearing, smelling, sight, taste, touch etc....

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