SCALP Layers Quiz
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Questions and Answers

The "SCALP Proper" includes which layers of the scalp?

  • Skin, Loose Connective Tissue, and Periosteum
  • Skin, Dense Connective Tissue, and Aponeurosis (correct)
  • Loose Connective Tissue, Aponeurosis, and Periosteum
  • Skin, Aponeurosis, and Periosteum
  • Which layer of the scalp allows free movement of the scalp over the skull?

  • Dense Connective Tissue
  • Loose Connective Tissue (correct)
  • Aponeurosis
  • Periosteum
  • The aponeurosis of the scalp is part of which muscle? A) Orbicularis oculi B) Occipitofrontalis C) Temporalis D) Masseter

  • Orbicularis oculi
  • Occipitofrontalis (correct)
  • Temporalis
  • Masseter
  • The connective tissue layer (dense) of the scalp is responsible for which of the following? A) Protecting the periosteum B) Acting as a barrier to infection C) Anchoring the skin and transmitting blood vessels and nerves D) Allowing movement of the scalp

    <p>Anchoring the skin and transmitting blood vessels and nerves</p> Signup and view all the answers

    Subgaleal hematoma occurs in which layer of the scalp? Cephalohematomas occur in which layer of the scalp?

    <p>Beneath the Periosteum</p> Signup and view all the answers

    Which muscle surrounds the eye and is involved in blinking and closing the eyelids?

    <p>Orbicularis oculi</p> Signup and view all the answers

    Cephalohematoma occurs in which anatomical layer?

    <p>Beneath the periosteum</p> Signup and view all the answers

    Subgaleal hemorrhage is found in which layer?

    <p>Subgaleal space</p> Signup and view all the answers

    Which of the following is a potential space for internal scalp bleeding that can spread extensively?

    <p>Subgaleal space</p> Signup and view all the answers

    Which structure connects the occipital belly and frontal belly of the occipitofrontalis muscle?

    <p>Galea aponeurotica</p> Signup and view all the answers

    Subaponeurotic (Subgaleal) hemorrhage occurs in which layer of the scalp?

    <p>Loose connective tissue beneath the galea aponeurotica</p> Signup and view all the answers

    Subaponeurotic (Subgaleal) hemorrhage occurs in which layer of the scalp?

    <p>Loose connective tissue beneath the galea aponeurotica</p> Signup and view all the answers

    Which of the following is a potential clinical feature of a subgaleal hemorrhage?

    <p>Raccoon eyes (periorbital ecchymosis)</p> Signup and view all the answers

    What is a common cause of subaponeurotic (subgaleal) hemorrhage in neonates?

    <p>Vacuum-assisted delivery</p> Signup and view all the answers

    Subgaleal hemorrhage differs from cephalohematoma in that:

    <p>It spreads widely across the scalp.</p> Signup and view all the answers

    What is the most significant clinical risk associated with subgaleal hemorrhage?

    <p>Massive blood loss leading to hypovolemic shock</p> Signup and view all the answers

    What is the most likely diagnosis for the swelling seen in a 2-day-old newborn with bruising around the eyes after a vacuum-assisted delivery?

    <p>Subgaleal hemorrhage</p> Signup and view all the answers

    A newborn presents with a swelling on the right side of the head after a normal vaginal delivery. The swelling is localized to the right parietal region and is firm to the touch. The swelling does not cross the suture lines. The pediatrician suspects the baby may have suffered a trauma during delivery. What is the most likely diagnosis for the swelling seen in this newborn?

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

    The supratrochlear artery and supraorbital artery are branches of which parent artery?

    <p>Internal carotid artery</p> Signup and view all the answers

    Which of the following arteries supplies blood to the temporal region of the scalp?

    <p>Superficial temporal artery</p> Signup and view all the answers

    The posterior auricular artery supplies blood to which part of the scalp?

    <p>Behind the ear and parts of the auricle</p> Signup and view all the answers

    The occipital artery supplies blood to which areas of the scalp?

    <p>Parietal and occipital regions of the scalp</p> Signup and view all the answers

    Which artery supplies blood to the skin and muscles of the face, scalp, and ear?

    <p>External carotid artery</p> Signup and view all the answers

    Which artery gives off branches that supply the scalp and forehead, such as the supratrochlear and supraorbital arteries?

    <p>Internal carotid artery</p> Signup and view all the answers

    The veins of the scalp drain primarily into which veins?

    <p>Internal and external jugular veins</p> Signup and view all the answers

    Why are emissary veins important in relation to the scalp?

    <p>They establish a connection between the scalp veins and the dural venous sinuses</p> Signup and view all the answers

    Which artery and vein supply blood and drain blood from the forehead and scalp?

    <p>Supratrochlear artery and vein</p> Signup and view all the answers

    The posterior auricular vein drains into which venous structure?

    <p>External jugular vein</p> Signup and view all the answers

    Which of the following veins drains blood from the scalp and face?

    <p>Superficial temporal vein</p> Signup and view all the answers

    What is the primary route of venous drainage from the scalp?

    <p>Superficial temporal veins and occipital veins</p> Signup and view all the answers

    The supratrochlear vein drains into which of the following veins?

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

    The facial vein ultimately drains into which major vein?

    <p>Internal jugular vein</p> Signup and view all the answers

    Which of the following veins drains directly into the external jugular vein?

    <p>Superficial temporal vein</p> Signup and view all the answers

    The posterior auricular vein drains into which vein?

    <p>External jugular vein</p> Signup and view all the answers

    Which cranial nerve is responsible for the sensation in the scalp?

    <p>Cranial nerve V (Trigeminal nerve)</p> Signup and view all the answers

    The greater occipital nerve originates from which of the following?

    <p>Posterior ramus of C2</p> Signup and view all the answers

    The supra-orbital nerve is a branch of which cranial nerve?

    <p>Cranial nerve V1 (Ophthalmic branch of Trigeminal nerve)</p> Signup and view all the answers

    The auriculotemporal nerve is a branch of which nerve?

    <p>Trigeminal nerve (CN V)</p> Signup and view all the answers

    Which of the following nerves innervates the scalp from the posterior ramus of C3?

    <p>Greater occipital nerve</p> Signup and view all the answers

    The lesser occipital nerve originates from which part of the cervical plexus?

    <p>Anterior ramus of C2</p> Signup and view all the answers

    The greater auricular nerve arises from which spinal nerves?

    <p>Anterior ramus of C2 and C3</p> Signup and view all the answers

    The supratrochlear nerve provides sensory innervation to which area of the scalp?

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

    The zygomaticotemporal nerve is a branch of which nerve?

    <p>Trigeminal nerve (CN V)</p> Signup and view all the answers

    Which of the following nerves is responsible for sensory innervation posterior to the ears and vertex?

    <p>Great auricular nerve (C2/3)</p> Signup and view all the answers

    The lesser occipital nerve originates from which cervical nerve root?

    <p>C2</p> Signup and view all the answers

    Which nerve provides sensory innervation to the posterior scalp near the occipital region?

    <p>Greater occipital nerve (C2)</p> Signup and view all the answers

    The third occipital nerve originates from which cervical nerve root?

    <p>C3</p> Signup and view all the answers

    Which of the following nerves provides sensory innervation to the forehead and scalp anterior to the vertex?

    <p>Supraorbital nerve (V1)</p> Signup and view all the answers

    The zygomaticotemporal nerve is a branch of which division of the trigeminal nerve?

    <p>V2 (Maxillary)</p> Signup and view all the answers

    Which nerve provides sensory innervation to the skin over the ear and temporal region of the scalp? A) Auriculotemporal nerve (V3) B) Lesser occipital nerve (C2) C) Greater occipital nerve (C2) D) Zygomaticotemporal nerve (V2)

    <p>Auriculotemporal nerve (V3)</p> Signup and view all the answers

    Which branch of the facial nerve innervates the frontalis muscle?

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

    Which facial muscle is responsible for closing the eyes and is innervated by the zygomatic branch of the facial nerve?

    <p>Orbicularis oculi</p> Signup and view all the answers

    Which facial nerve branch innervates the buccinator muscle, which helps push food from the vestibule of the mouth into the oral cavity?

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

    The marginal mandibular branch of the facial nerve innervates which of the following muscles?

    <p>Orbicularis oris</p> Signup and view all the answers

    Which facial nerve branch innervates the platysma muscle, which helps during shaving by tightening the skin of the neck?

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

    The frontal belly of the occipitofrontalis muscle is innervated by which branch of the facial nerve?

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

    Which of the following muscles is innervated by the buccal branch of the facial nerve?

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

    The platysma muscle is involved in actions such as tightening the skin of the neck during shaving. Which facial nerve branch innervates it?

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

    Which lymph nodes drain the region anterior to the auricle and the parotid gland?

    <p>Pre-auricular/parotid nodes</p> Signup and view all the answers

    Which lymph nodes drain the region beneath the chin?

    <p>Submental nodes</p> Signup and view all the answers

    Which lymph nodes drain the posterior scalp and the area behind the ear?

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

    Which lymph nodes drain the region around the angle of the mandible?

    <p>Submandibular nodes</p> Signup and view all the answers

    Which lymph nodes are located at the junction of the posterior belly of the digastric muscle and the internal jugular vein?

    <p>Jugulodigastric nodes</p> Signup and view all the answers

    Which lymph nodes drain the superficial areas of the neck, including the skin and subcutaneous tissue?

    <p>Superficial cervical nodes</p> Signup and view all the answers

    Which group of lymph nodes drains the lymph from the tonsils and pharyngeal regions?

    <p>Jugulodigastric nodes</p> Signup and view all the answers

    The parotid glands form during which week of prenatal development?

    <p>6th week</p> Signup and view all the answers

    Which duct is associated with the parotid gland?

    <p>Stensen's duct</p> Signup and view all the answers

    What is the primary function of the parotid gland?

    <p>Secretes 25% of saliva</p> Signup and view all the answers

    The parotid gland is classified as which type of gland?

    <p>Exocrine gland</p> Signup and view all the answers

    The parotid gland secretes which enzyme responsible for breaking down starch?

    <p>Alpha-amylase</p> Signup and view all the answers

    Which of the following is a major anatomical structure located near the parotid gland?

    <p>Mastoid process</p> Signup and view all the answers

    Which structure passes through the parotid gland?

    <p>Facial nerve (VII)</p> Signup and view all the answers

    Which muscle is located overlying the parotid gland?

    <p>Masseter muscle</p> Signup and view all the answers

    Which of the following is located superficial to the external carotid artery and the posterior belly of the digastric muscle?

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

    Where does the facial nerve (VII) leave the skull?

    <p>Stylomastoid foramen</p> Signup and view all the answers

    Which artery supplies the parotid gland?

    <p>External carotid artery</p> Signup and view all the answers

    Which nerve provides motor innervation to the muscles of facial expression, including those of the parotid region?

    <p>Facial nerve (VII)</p> Signup and view all the answers

    Which structure is most closely associated with the retromandibular vein?

    <p>External carotid artery</p> Signup and view all the answers

    What is the most common benign tumor of the parotid gland?

    <p>Pleomorphic adenoma</p> Signup and view all the answers

    Which condition is characterized by difficulty with eye closure, drooping of the mouth, and food lodging in the cheek?

    <p>Bell's palsy</p> Signup and view all the answers

    What is the most common cause of parotitis?

    <p>Viral infection (mumps)</p> Signup and view all the answers

    Which of the following is a known cause of facial palsy? (Select all that apply)

    <p>Both B and C</p> Signup and view all the answers

    What is the main treatment for Bell's palsy?

    <p>Steroids and antivirals</p> Signup and view all the answers

    Which type of tumor can affect the facial nerve even when benign?

    <p>Pleomorphic adenoma</p> Signup and view all the answers

    What is a common sign of facial palsy seen in patients with Bell's palsy?

    <p>Uneven wrinkle formation on the forehead</p> Signup and view all the answers

    Where do the parasympathetic fibers that innervate the parotid gland originate?

    <p>Medulla oblongata</p> Signup and view all the answers

    Which cranial nerve carries the parasympathetic fibers to the parotid gland?

    <p>Glossopharyngeal nerve (IX)</p> Signup and view all the answers

    Which structure does the glossopharyngeal nerve use to reach the tympanic plexus?

    <p>Inferior tympanic canaliculus</p> Signup and view all the answers

    The lesser petrosal nerve synapses in which ganglion?

    <p>Otic ganglion</p> Signup and view all the answers

    Which nerve carries the post-synaptic parasympathetic fibers to the parotid gland?

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

    Where does the lesser petrosal nerve exit the skull?

    <p>Foramen ovale</p> Signup and view all the answers

    Which structure is responsible for the secretion of saliva from the parotid gland?

    <p>Parasympathetic fibers</p> Signup and view all the answers

    Which cranial nerve is involved in the parasympathetic innervation of the parotid gland?

    <p>Glossopharyngeal nerve (IX)</p> Signup and view all the answers

    What is the final destination of the parasympathetic fibers that travel from the otic ganglion?

    <p>Parotid gland</p> Signup and view all the answers

    Where do the parasympathetic fibers for the parotid gland originate?

    <p>Inferior salivatory nucleus</p> Signup and view all the answers

    Which cranial nerve carries the parasympathetic fibers from the inferior salivatory nucleus?

    <p>Glossopharyngeal nerve (IX)</p> Signup and view all the answers

    Through which foramen does the glossopharyngeal nerve (IX) leave the skull?

    <p>Jugular foramen</p> Signup and view all the answers

    The tympanic nerve ascends into which structure after leaving the jugular foramen?

    <p>Inferior tympanic canaliculus</p> Signup and view all the answers

    The lesser petrosal nerve arises from which structure?

    <p>Inferior salivatory nucleus</p> Signup and view all the answers

    Which foramen does the lesser petrosal nerve exit through to leave the petrous temporal bone?

    <p>Foramen for the lesser petrosal nerve</p> Signup and view all the answers

    After leaving the petrous temporal bone, where does the lesser petrosal nerve travel?

    <p>Middle cranial fossa</p> Signup and view all the answers

    Where does the lesser petrosal nerve synapse?

    <p>Otic ganglion</p> Signup and view all the answers

    After synapsing in the otic ganglion, which of the following nerves carries the post-synaptic parasympathetic fibers of the lesser petrosal nerve?

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

    The parasympathetic fibers that hitchhike with the auriculotemporal nerve are destined for which gland?

    <p>Parotid gland</p> Signup and view all the answers

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