Senses Associated with Free Nerve Endings
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Senses Associated with Free Nerve Endings

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Questions and Answers

What classifies an organ as part of the endocrine system?

  • It secretes hormones into the circulatory system (correct)
  • It is capable of converting amino acids into hormones
  • It has intracellular receptors for hormones
  • It produces cholesterol
  • Complete the analogy: neurotransmitters : nervous system :: hormones : ?

  • digestive system
  • endocrine system (correct)
  • circulatory system
  • respiratory system
  • Which of the following is true about lipophilic hormones?

  • They cannot enter their target cells
  • They are rapidly deactivated after binding to their receptors
  • They are soluble in water
  • They require a transport protein in the bloodstream (correct)
  • Which of the following is not a characteristic of an endocrine organ?

    <p>Produces cholesterol</p> Signup and view all the answers

    What distinguishes the endocrine system from other systems like the digestive or respiratory systems?

    <p>It involves hormone secretion</p> Signup and view all the answers

    What color is the woven mat that the person's foot is resting on?

    <p>Blue and white</p> Signup and view all the answers

    What position are the toes in the image?

    <p>Curled up slightly</p> Signup and view all the answers

    Which sense are free nerve endings associated with?

    <p>touch</p> Signup and view all the answers

    What is the color of the person's foot in the image?

    <p>light brown</p> Signup and view all the answers

    How many options are given for each question in the image?

    <p>Four</p> Signup and view all the answers

    White matter is primarily comprised of which of the following?

    <p>Axons</p> Signup and view all the answers

    What is the main function of the hypothalamus?

    <p>Controlling hormone production</p> Signup and view all the answers

    Which of the following statements is true about a resting potential?

    <p>The neuron's interior is negatively charged relative to the outside</p> Signup and view all the answers

    What role does the brain stem play in the body?

    <p>Controlling basic life functions</p> Signup and view all the answers

    A functional reflex requires all of the following except:

    <p>A neurotransmitter</p> Signup and view all the answers

    What is the primary role of sensory neurons?

    <p>Carrying signals from sensory organs to the CNS</p> Signup and view all the answers

    Which of the following statements about pons is correct?

    <p>It connects the cerebrum to the cerebellum</p> Signup and view all the answers

    Which of these terms describes the electrical charge of a neuron at rest?

    <p>Resting potential</p> Signup and view all the answers

    Which type of muscle is found in the heart?

    <p>Cardiac Muscle</p> Signup and view all the answers

    Which layer of the skin does a hypodermic needle first penetrate?

    <p>Epidermis</p> Signup and view all the answers

    Sebaceous glands are NOT located in which of the following areas?

    <p>Palms and soles</p> Signup and view all the answers

    What type of tissue makes up the epidermis?

    <p>Keratinized stratified squamous epithelial tissue</p> Signup and view all the answers

    What is the main function of melanin?

    <p>to provide protection against the sun's UV rays</p> Signup and view all the answers

    Which factor is most important in determining skin color?

    <p>Melanin</p> Signup and view all the answers

    Which type of tissue is found in the lungs?

    <p>Epithelial</p> Signup and view all the answers

    How does the integumentary system help regulate body temperature?

    <p>by increasing sweat production</p> Signup and view all the answers

    Study Notes

    Nervous System

    • White matter consists of myelinated axons, whereas gray matter consists of unmyelinated cell bodies and dendrites.
    • White matter is found in the CNS, and gray matter is also found in the CNS.
    • A functional reflex requires a sensory neuron, the thalamus, and a motor neuron.
    • Stimulants increase the activity of the nervous system, while depressants decrease the activity of the nervous system.
    • Motor neurons carry signals from the CNS to muscles and glands, whereas sensory neurons carry signals from sensory organs to the CNS.
    • The brain stem controls basic life functions, and the diencephalon is involved in sensory relay and hormone production.
    • Resting potential is the electrical charge of a neuron at rest, and action potential is the electrical signal that travels down a neuron.
    • A neuron is a nerve cell, a dendrite is a branch of a neuron that receives signals, a myelin sheath is a fatty covering that insulates neurons, and a synapse is the gap between two neurons.

    Endocrine System

    • An organ is classified as part of the endocrine system if it secretes hormones into the circulatory system.
    • The analogy is: neurotransmitters: nervous system :: hormones: endocrine system.

    Muscle Types

    • There are three types of muscle: Skeletal Muscle, Smooth Muscle, and Cardiac Muscle.

    Integumentary System

    • The first integumentary structure through which a hypodermic needle will pass is the Papillary Layer.
    • Sebaceous glands are not located in the Abdominal region.
    • The epidermis is composed of Keratinized stratified squamous epithelial tissue.
    • The primary function of melanin is to provide protection against the sun's UV rays.
    • Melanin is most important in determining skin coloration.
    • Epithelial tissue is found in the lungs.
    • Sebaceous glands are most active when hair is shedding.
    • The integumentary system helps to regulate body temperature by retaining heat.
    • Sweat and oil glands are not associated with the skin.

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    Description

    This quiz asks about the sense associated with free nerve endings. It is a multiple-choice question with options related to the human senses. The image shows a person's foot resting on a mat.

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