Anatomy of the Scalp and Muscles
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Questions and Answers

Which structure provides a connection between the frontal and occipital bellies of the occipito frontalis muscle?

  • Aponeurosis of occipitofrontalis muscle (correct)
  • Connective tissue
  • Loose areolar connective tissue
  • Periosteum (pericranium)
  • What is the primary function of the occipito frontalis muscle?

  • Facilitates scalp mobility
  • Raises eyebrows (correct)
  • Regulates blood flow to the scalp
  • Protects the cranial bones
  • Which layer of the scalp is responsible for the formation of sebaceous cysts?

  • Connective tissue
  • Loose areolar connective tissue
  • Skin (correct)
  • Aponeurosis of occipitofrontalis muscle
  • Which anatomical landmarks define the anterior extent of the scalp?

    <p>Supraorbital margins</p> Signup and view all the answers

    What complication can arise from a skull bone fracture affecting the periosteum?

    <p>Localized hematoma</p> Signup and view all the answers

    Which artery originates from the back of the external carotid artery and supplies the scalp behind the auricle?

    <p>Posterior Auricular Artery</p> Signup and view all the answers

    What is the primary function of the Occipital Artery?

    <p>Supplying the back of the scalp</p> Signup and view all the answers

    Which of the following veins descends along its artery and can end in the internal jugular vein or the suboccipital venous plexus?

    <p>Occipital vein</p> Signup and view all the answers

    Which branch of the Superficial Temporal Artery is responsible for supplying the scalp and divides into anterior frontal and posterior parietal branches?

    <p>Parietal branch</p> Signup and view all the answers

    Which vein unites with the posterior division of the retromandibular vein to form the external jugular vein?

    <p>Posterior auricular vein</p> Signup and view all the answers

    Which nerve specifically supplies the medial part of the upper eyelid, forehead, and anterior part of the scalp?

    <p>Supra-trochlear nerve</p> Signup and view all the answers

    What is the origin of the supra-orbital nerve?

    <p>Frontal branch of ophthalmic nerve</p> Signup and view all the answers

    Which nerve enters the orbit and supplies the frontal part of the temple?

    <p>Zygomaticotemporal nerve</p> Signup and view all the answers

    How many sensory nerves supply the scalp?

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

    Where does the supra-orbital nerve emerge from?

    <p>Supra-orbital notch</p> Signup and view all the answers

    What is the origin of the third occipital nerve?

    <p>Posterior branch of the 3rd Cervical nerve</p> Signup and view all the answers

    Which muscle is responsible for supplying the occipital belly of the occipito-frontalis muscle?

    <p>Post-Auricular branch of Facial nerve</p> Signup and view all the answers

    What describes the insertion of the middle fibers of the buccinator muscle?

    <p>Decussate at the angle of the mouth</p> Signup and view all the answers

    Which structure does the third occipital nerve supply?

    <p>Skin over the external occipital protuberance and upper part of the neck</p> Signup and view all the answers

    Which anatomical feature primarily relates to the course of the post-auricular branch of the facial nerve?

    <p>Courses upward and backward behind the auricle</p> Signup and view all the answers

    Which muscle of the scalp is associated with elevating the eyebrows and producing forehead wrinkles?

    <p>Frontal bellies</p> Signup and view all the answers

    Which of the following correctly describes the origin of the occipital bellies?

    <p>Highest nuchal lines</p> Signup and view all the answers

    How many arteries supply the scalp, and what is their characteristic entry?

    <p>10 arteries from the periphery forming connections</p> Signup and view all the answers

    Which nerve supplies the occipital bellies of the occipitofrontalis muscle?

    <p>Posterior auricular branch of the facial nerve</p> Signup and view all the answers

    What is the primary role of the epicranial aponeurosis in relation to the occipitofrontalis muscle?

    <p>To serve as a strong attachment for the muscle</p> Signup and view all the answers

    What is the origin of the Auriculotemporal Nerve?

    <p>Post. division of the mandibular nerve</p> Signup and view all the answers

    Which area is primarily innervated by the Great Auricular Nerve?

    <p>Skin behind the ear and lower part of the ear</p> Signup and view all the answers

    Which nerve is known to be the thickest cutaneous nerve in the body?

    <p>Greater Occipital Nerve</p> Signup and view all the answers

    What is the primary function of the Temporal Branch of the Facial Nerve?

    <p>Motor innervation to facial muscles</p> Signup and view all the answers

    Where does the Lesser Occipital Nerve emerge from the sternocleidomastoid muscle?

    <p>Middle of the posterior border</p> Signup and view all the answers

    Which of the following is NOT a distribution area for the Auriculotemporal Nerve?

    <p>Upper part of the orbicularis oculi muscle</p> Signup and view all the answers

    What is the direction of the Great Auricular Nerve as it ascends?

    <p>Obliquely upwards and forwards</p> Signup and view all the answers

    What muscles does the Temporal Branch of the Facial Nerve primarily innervate?

    <p>Upper part of orbicularis oculi and auricularis anterior</p> Signup and view all the answers

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