Anatomy of the Optic Nerve
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Questions and Answers

Which part of the cornea will assist greatly in the renewal of a corneal abrasion?

  • External stratified squamous epithelium (correct)
  • Inner simple squamous epithelium
  • Descemet's membrane
  • Stroma
  • What type of cartilage is found in the auricle?

  • Elastic (correct)
  • Hyaline
  • Cartilaginous
  • Fibrous
  • Which structure is NOT an effector organ/structure?

  • Skeletal muscle
  • Eyeball (correct)
  • Epidermis skin
  • Gastric glands
  • In the auditory pathway, what structure is involved in N3?

    <p>Ipsilateral and contralateral trapezoid body</p> Signup and view all the answers

    Which layer of skin is composed of loose connective tissue?

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

    What is the correct order of the layers of the skin?

    <p>Epidermis, dermis, hypodermis</p> Signup and view all the answers

    Which of the following is NOT a function of the muscular system?

    <p>Regulating body temperature</p> Signup and view all the answers

    Which Brodmann's area is responsible for primary visual cortex?

    <p>Area 17</p> Signup and view all the answers

    What is the optic radiation also known as?

    <p>Geniculo-calcarine</p> Signup and view all the answers

    At which level of the brain does the developing ear arise?

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

    What is the source of the developing eye?

    <p>All of the above</p> Signup and view all the answers

    What is the function of the tectorial membrane?

    <p>Hearing sensation</p> Signup and view all the answers

    Which of the following is NOT a pointed structure?

    <p>Ala of the nose</p> Signup and view all the answers

    What is the function of the encircled structure in the eye?

    <p>Drains the aqueous humor</p> Signup and view all the answers

    What is the destination of the optic radiation?

    <p>Visual cortex</p> Signup and view all the answers

    Which of the following is a type of sensory receptor?

    <p>Pacinian corpuscle</p> Signup and view all the answers

    Which sinus is located in the inferior part of the falx cerebri?

    <p>Inferior sagittal sinus</p> Signup and view all the answers

    What is the characteristic of a neuromuscular spindle?

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

    In which direction do the nasal fibers decussate in the optic chiasm?

    <p>Partial decussation</p> Signup and view all the answers

    Which type of receptor is non-capsulated?

    <p>Hair follicle receptors</p> Signup and view all the answers

    Which side of the body is affected by a cerebellar lesion?

    <p>The same side as the lesion</p> Signup and view all the answers

    Which sensation has a slow adaptability?

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

    Which of the following is not a type of mechanoreceptor?

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

    Which part of the falx cerebri contains the superior sagittal sinus?

    <p>Superior part</p> Signup and view all the answers

    Study Notes

    Optic Radiation and Eye Development

    • The optic radiations are also known as the Geniculo-calcarine tract.
    • The developing ear arises at the level of the rhombencephalon.
    • The development of the eye is derived from surface ectoderm, neural crest cells, and neuroectoderm.

    Anatomy of the Eye

    • The tectorial membrane is a pointed structure.
    • The Meissner's corpuscle is a pointed structure.
    • The external stratified squamous epithelium layer of the cornea assists in the renewal of corneal abrasion.

    Auditory Pathway

    • N3 of the auditory pathway involves the Ipsilateral and contralateral trapezoid body + Superior olivary nucleus.

    Cartilage and Skin

    • The auricle contains elastic cartilage.
    • The dermis is the layer of skin that is beneath the epidermis.

    Neuroanatomy

    • The gastric glands are effector organs/structures.
    • The primary visual cortex is not Brodmann's area of the inferior sagittal sinus.
    • Neuromuscular spindles are encapsulated.
    • The anterior part of the cerebellum is affected in cerebellar lesions, causing deficits on the same side as the lesion.

    Receptors

    • Hair follicle receptors are non-capsulated.
    • Pacinian corpuscles and Ruffini corpuscles are encapsulated receptors.

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    Description

    Identify the parts and functions of the optic nerve, including the optic radiation and tract. Test your knowledge with these multiple-choice questions.

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