Head and neck anatomy

SubarachnoId hemorrhage

Overview – 1. Subarachnoid space 2. Cause 3. Clinical features 4. Diagnosis ● Subarachnoid space – It is present between arachnoid and piamater. ● Circle of willis (COW) and CSF both are present in subarachnoid space (Inter peduncular cistern) NOTE – Inter peduncular cistern is a subarachnoid space and it contain circle of willis. ● …

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Thyroid gland

Overview- 1. Dyspnea 2. Dysphonia 3. Dysphagia 4. Tracheal Deviation 5. Retrosternal goiter 6. Pemberton’s Sign Thyroid gland present in neck region and it have two lobe (Right and left) and both lobe are connect with isthmus. Thyroid gland present in front of the tracha and it secret three hormone 1. Thyroxine or tetra iodo …

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Brain blood supply

Overview- 1. Vertebral Artery- 4th part (Five branches)2. Basilar Artery- Five branches 3. Internal Carotid Artery (ICA)- 4th part (Five branches)4. Circle of Willis (COW)- Draw hexagon 5. Cerebellum blood supply- Three artery 6. Clinicals- Stroke, Ataxia, PICA syndrome (Wallenberg syndrome or Lateral medullary syndrome) NOTE: Vertebral, and Internal carotid artery- • Both artery are …

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Pterion

Overview- We covered pterion anatomy into below points. 1. Fontanelle- Pterion2. Location- Temporal fossa3. Formation 4. Artery- Middle meningeal artery 5. Nerve- Auriculotemporal nerve6. Hematoma7. Surgical landmark 8. Fracture 1. In pediatrics we read four fontanelle- A. Anterior fontanelle or BregmaB. Posterior fontanelle or LambdaC. Anterolateral fontanelle or Pterion D. Posterolateral fontanelle or Asterion Mnemonic: …

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Temporal fossa

Overview- 1. Boundaries- Anterior, posterior, superior, inferior, lateral, and medial. 2. Communication- Infratemporal fossa. 3. Content- Muscle, artery, and nerve. ● It is a fan shape, shallow fossa. ● Two in number and present on anterolateral side of the skull. ● Temporalis muscle (Fan shape muscle) are attached on it. 1. Boundaries- The boundaries of …

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Larynx Anatomy

Overview- In this article we covered- • Larynx Intrinsic muscles (Total 9 muscles) • Vagus nerve (Superior and inferior/recurrent laryngeal nerve) • Pharyngeal arch (4th and 6th arch) Larynx muscles (Intrinsic muscles) ● Development– All Intrinsic Muscles of the Larynx are developed from the 6th pharyngeal arch except the Cricothyroid muscle (this is developed from …

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Carotid artery

OVERVIEW- In this article we covered- A. External carotid artery and its branches B. Maxillary artery and its branches C. Maxillary nerve (Trigeminal nerve) and its branches Branches of External carotid artery (ECA) • this is the branch of the common carotid artery (Common carotid artery divide into two part; external and internal carotid artery- …

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Trigeminal Nerve

1. Ophthalmic Division of Trigeminal Nerve- (Sensory) • Frontal branch A. Supra Trochlear (Medial side)- Supply to the skin of the upper eyelid B. Supra Orbital (Lateral side) – Supply to the skin of upper eyelid and forehead • Nasociliary A. Infra Trochlear B. Anterior Ethmoidal- Supply to the nose. C. Posterior Ethmoidal- Supply to …

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