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Human Biology: The Nervous System

Human Biology:  The Nervous System
Human Biology:  The Nervous System
Human Biology:  The Nervous System
Human Biology:  The Nervous System
Human Biology:  The Nervous System
Human Biology:  The Nervous System
Human Biology:  The Nervous System
Human Biology:  The Nervous System
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3 MB|94 pages
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Product Description
This is a complete and comprehensive PowerPoint (many interactive slides) that meets all curricular objective for the British Columbia Biology 12 programs of study. The follow are the learning objectives met in this resource.

Estimated Time: 12–14 hours

By the end of this course, students will have an understanding of the structures and function of the nervous system.

Vocabulary
acetylcholine (ACh), acetylcholinesterase (AChE), action potential, adrenal medulla, adrenalin, “all-ornone” response, autonomic nervous system, axomembrane, axon, axoplasm, calcium ion, cell body, central nervous system, cerebellum, cerebrum, contractile protein, corpus callosum, dendrite, depolarization, effector, excitatory neurotransmitter, hypothalamus, impulse, inhibitory neurotransmitter, interneuron, medulla oblongata, meninges, motor neuron, myelin sheath, myelinated nerve fibre, neuroendocrine control centre, neuron, neurotransmitters, node of Ranvier, norepinephrine, parasympathetic division, peripheral nervous system, pituitary gland, polarity, postsynaptic membrane, potassium gate, presynaptic membrane, receptor, reflex arc, refractory period, repolarization, resting potential, saltatory transmission, Schwann cell, sensory neuron, sodium gate, sodium-potassium pump, somatic nervous system, sympathetic division, synapse, synaptic cleft, synaptic ending, synaptic vesicle, thalamus, threshold value

Knowledge
• transmission of nerve impulses
• components of a synapse
• impulse transmission across synapses
• structure and function of a reflex arc
• divisions of the nervous system and their inter-relationships
• functions of parts of the brain
• autonomic and somatic nervous systems; sympathetic and parasympathetic divisions

C11 analyse the transmission of nerve impulses:

identify and give functions for each of the following: dendrite, cell body, axon, axoplasm, and axomembrane

differentiate among sensory, motor, and interneurons with respect to structure and function

explain the transmission of a nerve impulse through a neuron, using the following terms:
– resting and action potential
– depolarization and repolarization
– refractory period
– sodium and potassium gates
– sodium-potassium pump
– threshold value
– “all-or-none” response
– polarity

relate the structure of a myelinated nerve fibre to the speed of impulse conduction, with reference to myelin sheath, Schwann cell, node of Ranvier, and saltatory transmission

identify the major components of a synapse, including
– synaptic ending
– presynaptic and postsynaptic membranes
– synaptic cleft
– synaptic vesicle
– calcium ions and contractile proteins
– excitatory and inhibitory neurotransmitters (e.g., norepinephrine, acetylcholine – ACh)
– receptor
– acetylcholinesterase (AChE)

explain the process by which impulses travel across a synapse

describe how neurotransmitters are broken down in the synaptic cleft

describe the structure of a reflex arc (receptor, sensory neuron, interneuron, motor neuron, and effector) and relate its structure to how it functions

C12 analyse the functional interrelationships of the divisions of the nervous system

compare the locations and functions of the central and peripheral nervous systems

identify and give functions for each of the following parts of the brain:
– medulla oblongata
– cerebrum
– thalamus
– cerebellum
– hypothalamus
– pituitary gland
– corpus callosum
– meninges

explain how the hypothalamus and pituitary gland interact as the neuroendocrine control centre

differentiate between the functions of the autonomic and somatic nervous systems

describe the inter-related functions of the sympathetic and parasympathetic divisions of the autonomic nervous system,
with reference to
– effect on body functions including heart rate, breathing rate,
pupil size, digestion
– neurotransmitters involved
– overall response (“fight or flight” or relaxed state)

identify the source gland for adrenalin (adrenal medulla) and
explain its role in the “fight or flight” response
Total Pages
94 pages
Answer Key
N/A
Teaching Duration
N/A
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