Nervous and Endocrine Systems

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Questions and Answers

What role does the cerebral cortex primarily play in the nervous system's response types?

  • Mediating reflex actions.
  • Coordinating sensory input.
  • Controlling voluntary actions. (correct)
  • Regulating autonomic functions.

Which component is the control center for autonomic or vegetative responses?

  • Spinal cord
  • Cerebral cortex
  • Hypothalamus (correct)
  • Medulla oblongata

In the context of nerve impulse transmission, what is the primary role of the synapse?

  • Electrical insulation of nerve fibers.
  • Direct electrical transmission between neurons.
  • Chemical transmission of signals between neurons. (correct)
  • Physical support for nerve fibers.

What is the correct sequence of elements involved in a nervous system response?

<p>Stimulus → receptor → peripheral NS → central NS → effector → response. (C)</p> Signup and view all the answers

What is the main role of glial cells in nervous tissue?

<p>To provide support and protection to neurons. (D)</p> Signup and view all the answers

Which of the following best describes the role of the medulla oblongata in the nervous system?

<p>Regulation of reflex actions. (C)</p> Signup and view all the answers

What is the key functional difference between the somatic and autonomic nervous systems?

<p>The somatic nervous system controls voluntary movements, while the autonomic nervous system controls involuntary functions. (D)</p> Signup and view all the answers

How do the sympathetic and parasympathetic nervous systems differ in their effects on the body?

<p>The sympathetic system prepares the body for 'fight or flight,' while the parasympathetic system promotes 'rest and digest'. (D)</p> Signup and view all the answers

What primarily constitutes the central nervous system (CNS)?

<p>The brain (encephalon) and spinal cord. (C)</p> Signup and view all the answers

What is the primary function of the relationship function (función de relación)?

<p>To enable interaction with the external environment. (C)</p> Signup and view all the answers

In a reflex arc, what is the role of the sensory neuron?

<p>To transmit signals from the receptor to the central nervous system. (D)</p> Signup and view all the answers

What distinguishes the endocrine system from the nervous system in controlling body functions?

<p>The endocrine system's effects are slower and more prolonged, while the nervous system's effects are rapid and short-lived. (D)</p> Signup and view all the answers

Which of the following diseases is primarily associated with the nervous system?

<p>Parkinson's disease (C)</p> Signup and view all the answers

Where do the spinal nerves originate in a reflex arc?

<p>Spinal Cord (B)</p> Signup and view all the answers

Which of the following best describes the function of association neurons (neuronas de asociación) in a reflex arc?

<p>They connect sensory and motor neurons within the spinal cord. (B)</p> Signup and view all the answers

Which part of the brain is most directly involved in the coordination of voluntary movements?

<p>The cerebellum. (D)</p> Signup and view all the answers

What is the principal role of motor neurons in the context of a reflex response?

<p>Carrying signals to muscles to initiate a response. (C)</p> Signup and view all the answers

What characterizes 'actos voluntarios' (voluntary acts) in terms of neural control?

<p>They are initiated and controlled by the cerebral cortex. (D)</p> Signup and view all the answers

Which neurodegenerative disease primarily affects memory and cognitive functions?

<p>Alzheimer's disease (A)</p> Signup and view all the answers

Flashcards

¿Qué es la función de relación?

The way living beings interact with their environment, detecting changes and responding.

Differences between nervous and endocrine systems

The nervous system uses electrical and chemical signals for rapid communication, while the endocrine system uses hormones for slower, widespread effects.

Neurons vs. Glial cells

Neurons transmit signals; glial cells support and protect neurons.

Nervous impulse transmission

Electrical impulse along the neuron and chemical transmission at the synapse.

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¿Qué es el sistema nervoso central?

Brain and spinal cord.

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¿Qué es el sistema nervoso periférico?

Nerves extending from the central nervous system.

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¿Qué es el sistema nervoso somático?

Voluntary muscle control.

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¿Qué es el sistema nervoso vegetativo/autónomo?

Involuntary functions like heart rate, digestion, and breathing.

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Receptor

Receive stimuli.

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SN Periférico (as a pathway)

Carries signal to the central nervous system.

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SN Central (as a pathway)

Processes information and makes decision.

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Efector

Carries out the response.

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Respuesta

Response to stimulus.

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Actos voluntarios

Voluntary actions controlled by the cerebral cortex.

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Actos reflejos

Involuntary, rapid responses controlled by the spinal cord.

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Reflex Arc Components

The spinal cord, sensory and motor neurons, and ganglia.

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Simpático

Increases heart rate and prepares for "fight or flight."

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Parasimpático

Conserves energy and promotes "rest and digest" functions.

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¿Qué son las glándulas endocrinas?

Glands that secrete hormones into the bloodstream.

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Nervous/Endocrine Diseases

Parkinson's, Alzheimer's, stroke, paralysis, diabetes, dwarfism.

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Study Notes

  • Contents relate to the nervous and endocrine systems.

  • Function of relation must be defined.

  • Differences between the nervous and endocrine systems should be identified.

  • Cells constituting nervous tissue, their functions (neurons and glial cells) are important to know.

  • Parts of a neuron should be labeled in a drawing.

  • Two connected neurons must be drawn, with description of impulse transmission along them (electrical) and in the synapse (chemical).

  • Main components of the nervous system are the the central nervous system (brain with its parts, spinal cord with its parts) and peripheral nervous system (nerves and classification).

  • The functional distinction between somatic and autonomic nervous systems must be understood.

  • Principal functions of different parts of the central nervous system have to be named.

  • The seven elements participating in the nervous system's operation have to be identified, differentiated.

  • Each element includes: stimulus → receptor → peripheral nervous system → central nervous system → peripheral nervous system → effector → response

  • This scheme has to be applied to any voluntary or reflex action of the nervous system.

  • Three types of nervous system responses should be distinguished: voluntary acts (cerebral cortex), reflex acts (spinal cord), autonomous or vegetative acts (hypothalamus).

  • The controller of each response must be identified.

  • Reflex act definition, a representative drawing, including the spinal cord, spinal nerves leaving it with ganglia, sensory and motor neurons (and association, if desired), is required.

  • The seven steps of the reflex response should be indicated in a specific case or example.

  • The autonomic nervous system needs to be defined, with differentiation of the sympathetic and parasympathetic nervous systems within it.

  • Situations in which each acts and at least five responses each provokes should be identified.

  • The names and locations of different endocrine glands in the body are important.

  • Hormones secreted by each gland and their functions need to be named.

  • Some diseases related to the nervous system (Parkinson's, Alzheimer's, stroke, paraplegia) and/or endocrine system (hyper or hypothyroidism, goiter, diabetes, dwarfism) should be known.

  • Ways in which the nervous and endocrine systems control functions of the body must be explained with examples.

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