Physiology: Mechanistic and Teleological Approaches
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Questions and Answers

What is the primary focus of a mechanistic approach in physiology?

  • Identifying the reasons why specific functions exist in an organism.
  • Examining the processes and mechanisms of how something works. (correct)
  • Understanding the purpose of a biological function.
  • Analyzing the significance of a function for the survival of an organism.
  • What is the importance of the extracellular fluid?

  • It acts as the liquid environment for the cells of the organism. (correct)
  • It facilitates the absorption of nutrients from the external environment.
  • It provides a source of energy for the cells of the organism.
  • It serves as a protective barrier against external threats.
  • What is the definition of homeostasis according to the text?

  • The constant change of the internal medium of an organism.
  • The maintenance of a relatively constant internal environment. (correct)
  • The process of identifying the purpose of a specific function.
  • The study of how functions are designed for survival.
  • Which statement best represents the relationship between teleological and mechanistic approaches to physiology?

    <p>They are integrated; teleological considers the purpose while mechanistic considers the process of a function. (D)</p> Signup and view all the answers

    What is a key factor that is necessary for the survival and proper functioning of an organism according to the text?

    <p>The dynamic maintenance of the conditions of the internal medium. (D)</p> Signup and view all the answers

    According to the course guidelines, which activity is permitted using AI tools?

    <p>Checking grammar and style. (B)</p> Signup and view all the answers

    What is the definition of physiology?

    <p>The study of how the body functions. (D)</p> Signup and view all the answers

    When is using AI tools for composing journals permitted?

    <p>It is not permitted for composing journals. (B)</p> Signup and view all the answers

    According to the course guidelines, which of these is a permitted use of technology?

    <p>Using transcription tools for coursework. (B)</p> Signup and view all the answers

    Which of the following is NOT a support service offered by the Student Success Center?

    <p>Financial Aid Support. (D)</p> Signup and view all the answers

    What is the primary method scientists use to investigate physiology?

    <p>Observation, manipulations, and measurements. (C)</p> Signup and view all the answers

    According to the course guidelines, what should students do if they have group work?

    <p>Use AI if everyone in the group agrees (A)</p> Signup and view all the answers

    What languages do the words that form the word 'physiology' originate from?

    <p>Greek only (D)</p> Signup and view all the answers

    What is the primary function of the digestive system?

    <p>To take in nutrients, break them down, and eliminate unabsorbed matter. (D)</p> Signup and view all the answers

    Which system is primarily responsible for the intake of oxygen and the elimination of carbon dioxide?

    <p>Respiratory system (A)</p> Signup and view all the answers

    What is the role of the cardiovascular system in homeostasis?

    <p>To transport oxygen and nutrients to cells and remove wastes. (C)</p> Signup and view all the answers

    Which scientist is recognized for first describing the circulatory system and its interaction with the body?

    <p>William Harvey (C)</p> Signup and view all the answers

    What contributes to maintaining a stable internal environment in the body?

    <p>The balanced interaction of different organ systems (B)</p> Signup and view all the answers

    Which of the following best describes the work of Claude Bernard?

    <p>He established physiology as the scientific basis of medicine. (A)</p> Signup and view all the answers

    According to the content, which of the following is NOT a subdivision of physiology?

    <p>Pathological physiology (A)</p> Signup and view all the answers

    What would be considered as 'wastes' that the cardiovascular system delivers to disposal organs?

    <p>Carbon dioxide (D)</p> Signup and view all the answers

    Which of the following is NOT a function directly associated with the urinary system?

    <p>Eliminating carbon dioxide (D)</p> Signup and view all the answers

    What is the study of the functions of an organism and its constituent parts, described in the text?

    <p>Physiology (D)</p> Signup and view all the answers

    According to the diagram, what substance is distributed to all body cells via the blood?

    <p>Oxygen and nutrients (C)</p> Signup and view all the answers

    What does the concept of 'emergent properties' refer to, as described in the text?

    <p>New properties that arise as each level of biological organization gives rise to the next higher level. (A)</p> Signup and view all the answers

    Homeostasis relies on the balance between which of the following elements?

    <p>The functions of different organs and systems (D)</p> Signup and view all the answers

    What is 'Integration', as described in the text, in the context of physiological systems?

    <p>The process by which several components work together for a common, unified purpose. (C)</p> Signup and view all the answers

    According to the information provided, which of the following describes physiology?

    <p>An integrative science utilizing principles from physics, chemistry, and biology. (D)</p> Signup and view all the answers

    Who was considered the first 'physiologist' of the world in the modern sense?

    <p>William Harvey (D)</p> Signup and view all the answers

    What primarily facilitates the exchange of nutrients and wastes between blood and cells?

    <p>The interstitial fluid (A)</p> Signup and view all the answers

    Which of the following best describes the function of the cardiovascular system?

    <p>To distribute oxygen and nutrients and transport wastes (D)</p> Signup and view all the answers

    What is the main function of the integumentary system?

    <p>To protect the body from the external environment (D)</p> Signup and view all the answers

    Which system is responsible for taking in nutrients and eliminating unabsorbed matter?

    <p>The digestive system (C)</p> Signup and view all the answers

    What is the primary role of the respiratory system in relation to the other systems?

    <p>To take in oxygen and eliminate carbon dioxide. (A)</p> Signup and view all the answers

    Which of the following best describes positive feedback?

    <p>A process that reinforces a stimulus, amplifying the direction of change. (B)</p> Signup and view all the answers

    Which of the following is an example of a negative feedback mechanism?

    <p>The body’s response to decreased blood glucose levels. (D)</p> Signup and view all the answers

    When the body temperature increases, what is the initial response of the thermoregulatory system?

    <p>Thermoreceptors in the skin detect a rise in body temperature. (B)</p> Signup and view all the answers

    What are the two main effector responses when the body temperature increases above normal?

    <p>Vasodilation and sweating (C)</p> Signup and view all the answers

    When body temperature drops, what response does the hypothalamus initiate to conserve heat?

    <p>Vasoconstriction, piloerection, and shivering. (C)</p> Signup and view all the answers

    Which process exemplifies a positive feedback loop?

    <p>The increased release of oxytocin during childbirth contractions. (C)</p> Signup and view all the answers

    If a person's temperature reaches 100.2°F, what mechanism is likely to occur according to the content?

    <p>A further increase in temperature due to positive feedback. (C)</p> Signup and view all the answers

    Which of the following is true about effectors in a feedback control system?

    <p>They carry out the response in a homeostatic mechanism. (A)</p> Signup and view all the answers

    Flashcards

    What is Physiology?

    The study of how the body functions.

    Physio

    The study of nature.

    Logy

    The study of.

    How is Physiology studied?

    The study of physiology involves observing the body, both with the naked eye and microscopes, and also manipulating and measuring.

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    Homeostasis

    The body's ability to maintain a stable internal environment despite external changes.

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    Integration

    A key theme in physiology, it emphasizes that the body is a complex system of interconnected parts working together.

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    Regulation

    A key theme in physiology; it highlights the body's ability to adapt and change in response to environmental demands.

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    Mechanism

    A key theme in physiology; it underscores the importance of understanding the underlying mechanisms of how the body functions.

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    What is Human Physiology?

    A branch of physiology that focuses specifically on the human body and its functions.

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    What is Viral Physiology?

    The study of the functions of viruses, including their life cycle, replication, and interactions with host cells.

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    What is Bacterial Physiology?

    The study of the functions of bacteria, including their metabolism, growth, and interactions with their environments.

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    What is Molecular Physiology?

    The study of the functions of molecules within living organisms, including their structures, interactions, and roles in cellular processes.

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    Physiology

    The study of how living organisms function through an integrated approach that explains both the purpose ('why') and the process ('how') of biological functions.

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    Human Physiology

    The study of the specific processes that enable the human body to survive and function.

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    What is Cellular Physiology?

    The study of the functions of cells, including their structure, metabolism, and interactions with other cells.

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    What is Plant Physiology?

    The study of the functions of plants, including their growth, development, and interactions with their environments.

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    Extracellular Fluid

    The fluid environment surrounding cells in the body, providing a stable medium for their survival and function.

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    What are Emergent Properties?

    The idea that complex systems emerge from simpler components, and new properties arise at each level of organization. For example, emotions and memories are emergent properties of the brain that are not present in individual neurons.

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    The Cell

    The fundamental unit of life, responsible for the basic functions of an organism.

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    Interstitial fluid

    The fluid that surrounds cells, allowing for the exchange of nutrients and waste products between the blood and cells.

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    Integumentary system

    A system composed of skin, hair, and nails that acts as a protective barrier against the external environment.

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    Digestive system function

    The process of taking in nutrients, breaking them down, and eliminating unabsorbed matter.

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    Respiratory system function

    The system responsible for taking in oxygen and eliminating carbon dioxide.

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    Cardiovascular system role

    The system that circulates blood throughout the body, delivering oxygen and nutrients to cells and removing waste products.

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    What is Homeostasis?

    The process of maintaining a stable internal environment in an organism, despite external changes.

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    What is the role of the digestive system?

    The digestive system takes in nutrients, breaks them down, and eliminates unabsorbed matter, called feces.

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    What is the role of the respiratory system?

    The respiratory system takes in oxygen and eliminates carbon dioxide.

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    What is the role of the cardiovascular system?

    The cardiovascular system transports oxygen, nutrients, and waste throughout the body via the blood.

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    What is the role of the urinary system?

    The urinary system eliminates nitrogenous wastes, excess ions, and water from the body.

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    How do different body systems contribute to homeostasis?

    All body tissues and organs work together to maintain homeostasis.

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    How does the cardiovascular system contribute to homeostasis?

    The cardiovascular system distributes oxygen and nutrients to all body cells, and removes waste products like carbon dioxide.

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    How does the urinary system contribute to homeostasis?

    The urinary system filters waste products from the blood and eliminates them from the body, helping maintain fluid balance.

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    Positive Feedback

    A feedback mechanism where the effector amplifies the initial stimulus, causing a further increase in the response.

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    Negative Feedback

    A feedback mechanism where the effector reduces or stops the stimulus, returning the system to its set point.

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    Response to Heat Stress

    The process of sweating and vasodilation (widening of blood vessels) to cool the body down.

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    Response to Cold Stress

    The process of vasoconstriction (narrowing of blood vessels), piloerection (hair standing on end), and shivering to warm the body up.

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    Hypothalamus

    The control center in the brain that regulates body temperature.

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    Thermoreceptors

    Sensors that detect changes in the body's internal environment, such as temperature.

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    Study Notes

    Course Information

    • Course Title: Human Physiology
    • Course Code: BIOL 2052
    • Instructor: Dr. Cristina V Dieni
    • Email: [email protected]
    • Phone: 942-4291, ext. 2248
    • Office: BGSC213
    • Office Hours: Tuesday 10-12, Thursday 13-15, by appointment

    Course Materials

    • Textbook: Human Physiology Derrickson B. - 2nd edition
    • Textbook: Physiology Costanzo L. - 6th edition
    • Textbook: Hole's Human Anatomy and Physiology, Shier, Butler, and Lewis. 13th edition
    • Note: These textbooks are not required but recommended, especially for those whose anatomy knowledge is weak.
    • Lecture handouts are required and available on Canvas.

    Course Objectives

    • Learning the basic mechanisms responsible for normal human body function, using a systemic approach.
    • Covering these organ systems: cell function, membrane physiology, muscle physiology, cardiovascular physiology, respiratory physiology, renal physiology, gastrointestinal physiology, neurophysiology, endocrinology, metabolism, immunology, and reproduction.

    Course Requirements

    • Regular attendance and active participation in all course lectures and laboratory sessions.
    • Demonstrated comprehension of course materials through written examinations.

    Course Grading

    • Exam 1: 22.5%
    • Exam 2: 22.5%
    • Exam 3: 22.5%
    • Exam 4: 22.5%
    • Homework/Assignments: 10%
    • Grading Scale: 90-100% = A, 80-89% = B, 70-79% = C, 60-69% = D, below 60% = F
    • Extra Credit: Offered throughout the semester to promote active participant and positive learning environment. Activities may be projects, class-related activities, or other contributions.
    • Extra Credit Notes: Extra credit is limited and awarded at the instructor's discretion. It cannot replace missed or incomplete assignments unless specified.

    Tentative Topic Schedule

    • Introduction to Physiology
    • Chemical Composition of the Body
    • Cells
    • Metabolism
    • Transport Across Plasma Membrane
    • Cell Signaling
    • Nervous System (including Central Nervous System, Sensory Systems, Autonomic and Somatic Nervous Systems)
    • Muscle
    • Control of Body Movement
    • Endocrine System
    • Cardiovascular System (including the Heart, Blood Vessels, and Blood)
    • Immune System
    • Respiratory System
    • Urinary System
    • Digestive System
    • Reproductive Systems

    Course Goals

    • Develop a strong understanding of how the human body functions through principles of homeostasis, mechanisms of action, communication, and integration.
    • Build knowledge and skills to prepare for future coursework and careers in medicine and allied health.
    • Develop critical thinking skills and apply physiology and science concepts through real-world examples.

    Classroom Protocol

    • Electronics: Use electronics only for class-related purposes during the class.
    • Respect: Respect all interactions.
    • Permitted AI Tools: Allowed for checking grammar, brainstorming ideas, refining ideas, and for finding information through Internet search tools, and for drafting outlines, translation tools, audio-to-text transcription tools, and for generating study questions.
    • Prohibited AI Tools: Not permitted for impersonating in classroom contexts, for conceptual or numerical homework problems, answering discussion prompts, drafting or writing entire assignments, completing group work (unless mutually agreed)

    Opportunities for Academic Assistance

    • Tutoring with subject tutors
    • Online tutoring through TutorMe
    • Confidential Project Care referrals
    • Disability Support Services
    • International Student Services
    • Career Services and support
    • Make-up Exams (https://newmanu.accudemia.net/login)
    • Counseling Services (12 free in-person or unlimited telehealth sessions)
    • For counseling services, register using your NU email at https://app.uwill.com/

    Additional information

    • Outcomes: Physiology defined, Levels of organization in the body, Life Processes, Homeostasis, Physiology as a science, Key themes of Physiology
    • What is Physiology?: Study of how the body functions. Observation and measurement are involved.
    • History of Physiology: Aristotle emphasized the relationship between structure and function, Galen performed experiments to understand body function, William Harvey described the circulatory system, and Claude Bernard established physiology as the scientific base of medicine.
    • Physiology Defined (detailed): The process of learning the functions of an organism and its constituent parts (including human physiology, focusing on the human body and having multiple subdivisions)

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    Description

    This quiz explores key concepts in physiology, focusing on mechanistic and teleological approaches. Questions cover definitions, the importance of extracellular fluid, and guidelines for using AI in academic settings. Test your understanding of these foundational topics!

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