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2024 BIOD 152 - Portage Learning Anatomy and Physiology Module 1 Exam With Answers (139 Solved Questions)

2024 BIOD 152 - Portage Learning Anatomy and Physiology Module 1 Exam With Answers simplifies your exam prep with solved past exams that mirror the actual test questions.

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    BIOD 152 Module 1 Exam Essential Human Anatomy & Physiology I Portage Learning Latest Updated 2024 Neurons - nerve cells that conduct electrical impulses and relay information Parts of a neuron - The dendrites, cell body, and axon T/F: Neurons undergo mitosis. - False How long can neurons survive? - A person's entire lifetime T/F: Neurons that die due to brain damage can be replaced. - False How long can neurons survive without oxygen? - 3-5 minutes Where are all nerve cell products synthesized? - The neuron cell body The neuron cell body consists of: - a large nucleus with surrounding cytoplasm containing the normal organelles Which direction is information is received and sent from within a neuron? - The same direction Dendrites - numerous short extensions that emanate from the cell body The nervous system - receives information, processes information, and sends out signals to the muscles and glands to elicit an appropriate response What is nervous tissue responsible for and how does it do it? - Communication between the cells of the body by forming a system of electrical impulses

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    What are the two main divisions of the human nervous system? - The Central Nervous System (CNS) and Peripheral Nervous System (PNS) The central nervous system includes: - the brain and spinal cord nuclei - Collections of cell bodies inside the central nervous system Tracts - the collection of nerve axons in the central nervous system The peripheral nervous system includes: - cranial nerves and spinal nerves: all nerves not in the brain or spinal cord brainstem regions - the midbrain, pons, and medulla Cranial nerves project from the ___. - brainstem Spinal nerves project from ___. - either side of the spinal cord What do cranial nerves generally innervate? - the face, head, and neck What do spinal nerves innervate? - trunk and limbs ganglia - Collections of cell bodies inside the peripheral nervous system nerves - hundreds of thousands of axons wrapped together in a connective tissue The ___ nervous system connects all parts of the body to the ___ nervous system - peripheral; central two divisions of the PNS - Sensory (afferent) division and motor (efferent) division The peripheral nervous system receives impulses from the sensory organs via the ___ division - Afferent

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    The peripheral nervous system relays signals or impulses from the central nervous system to muscles and glands via the ___ division. - motor or efferent Systems of the efferent division - the somatic nervous system and autonomic nervous system (ANS) The somatic system nerves are generally under ___ control. - conscious (voluntary) The somatic system controls the movements of ___. - Skeletal muscles, skin, and joints The autonomic system nerves control the ___. - glands and smooth muscles of the internal organs The autonomic system is under ___ control. - involuntary Divisions of the autonomic system - the sympathetic nervous system and parasympathetic nervous system Roles of the sympathetic nervous system - activates and prepares the body for vigorous muscular activity, stress, and emergencies. Roles of the parasympathetic nervous system - operates during normal situations, permits digestion, and conserves energy Role of dendrites - Receive information from other neurons and conduct those nerve impulses toward the cell body Role of axon - Conducts nerve impulses away from the cell body to its axon terminals Axon length - Up to three feet What are axons composed of? - cell components like the cell body; lack rough endoplasmic reticulum

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