The largest portion of the human brain is the cerebrum. Also known as the cortex‚ the cerebrum is involved with higher brain functions like thought and action. The cerebral cortex has four lobes – the frontal lobe‚ the parietal lobe‚ temporal lobe‚ and the occipital lobe (“Brain Structures and their Functions‚” n.d.; “Frontal Lobe - The Brain Made Simple‚” n.d.). The frontal lobe performs executive functions. These functions include initiation‚ inhibition‚ purposive action‚ volition‚ planning‚ reasoning
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NERVOUS SYSTEM The human body’s activities are regulated by two systems – the nervous system and the endocrine system. Although both systems control body functions‚ their methods differ. The nervous system is the body’s information gatherer‚ storage center and control system. Its primary function is to collect information about the external conditions in relation to the body’s external state‚ to analyze this information‚ and to initiate appropriate responses to satisfy certain needs; the most
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receives information from and sends information to the peripheral nervous system. The two main organs of the CNS are the brain and spinal cord. The brain processes and interprets sensory information sent from the spinal cord. 3. Cerebrum- in humans‚ the cerebrum is the largest part and superior-most region of the vertebrate central nervous system. It is also divided into approximately symmetric left and right cerebral hemispheres. 4. Cerebellum- a region of the brain that plays an important
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The Nervous System is the system of cells‚ tissues‚ and organs that regulates the body’s responses to internal and external stimuli. In vertebrates it consists of the brain‚ spinal cord‚ nerves‚ ganglia‚ and parts of the receptor and effector organs. Your nervous system is composed of the central nervous system‚ the cranial nerves‚ and the peripheral nerves. The brain and spinal cord together form the central nervous system. The cranial nerves connect the brain to the head. The four groups of nerves
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and was a center for coordinating reflexes involving the eyes and ears * Forebrain - originally dealt mainly with smell. Later‚ the thalamus evolved to receive sensory input from the midbrain and the hindbrain and to pass it on to cerebrum * Cerebrum integrates sensory and motor input and is particularly associated with higher mental capabilities 26.2 Humans have well-developed central and peripheral nervous systems * Peripheral nervous system (PNS) consists of all the nerves and
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BIOLOGY Are eyes enough to enjoy this natural splendour ...? Didn’t you notice the picture drawn by Raju and its caption? What is your opinion about the caption? You too might have got the opportunity to enjoy such scenes from nature. What have your blissful experiences in such situations been? — — — — — Colourful scenes The chirping of birds The gentle pat of the breeze The intoxicating fragrance of flowers The honey-sweetness of mango 7 BIOLOGY Though these are different experiences
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usual elegant prose‚ he emphasized both information processing and constructive processing. Neisser always described Cognitive Psychology as an assault on behaviorism. Cognition is controlled by the part of the brain that is called the cerebrum. The cerebrum makes up 85% of our brain weight‚ and is responsible for the way we perceive‚ think‚ learn‚ and memorize things. It is the most important part of the body‚ because it allows us to function in our everyday routine. In the past ten years we
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(hindbrain) - becomes metencephalon (afterbrain) and myelencephalon (spinal brain) 2. What is the advantage of having a cerebrum that is highly convoluted? What term is used to indicate its crooves? Its outward folds? What groove divides the crebrum into two hemispheres? What divides the parietal from the frontal lobe? The parietal from the temporal lobe? Convoluted cerebrum allows more neurons to occupy the limited space ridges are called gyri shallow grooves are called sulci and deeper grooves
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Chapter 3 The Biological Bases of Behavior Communication in the Nervous System * Nervous Tissue: The Basic Hardware * Neurons are individual cells in the nervous system that receive‚ integrate‚ and transmit information. * The soma‚ or cell body‚ contains the cell nucleus and much of the chemical machinery common to most cells. * Dendrites are the parts of a neuron that are specialized to receive information. * The axon is a long‚ thin fiber that transmits signals
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10/21/14 Nervous system: one of the eleven major body organ systems in animals; coordinates and controls actions of internal organs and body systems; receives and processes sensory information from external environment; coordinated short-term reactions to these stimuli. Cell body: the part that contains the nucleus and most of the cytoplasm and the organelles. Axon: sends messages away from the cell body to other neurons. Dendrite: short‚ highly branched fibers that carry signals toward the cell
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