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3 lis 2023 · The external nasal anatomy is quite simple. It is a pyramidal structure, with its root located superiorly and apex sitting inferiorly. The root is continuous with the anterior surface of the head and the part between the root and the apex is called the dorsum of the nose.
- Lateral
The lateral wall of the nasal cavity is a region of the...
- Kiesselbach's Plexus
Nose bleeds from Little’s area are best controlled by...
- Clinical Case
It is part of the pharynx, specifically the space superior...
- Medial Walls
Palatine bone (medial view) Nasal cartilage and associated...
- Inferior
The nasal conchae (also known as turbinates) are bony plates...
- Hair Follicles
Hair has a number of important functions. For example, it...
- Paranasal Sinuses
The maxillary sinuses are the largest and the most inferior...
- Nasal Bone
The nasal bone is a small, flat bone of the skull. It makes...
- Lateral
The nasal cavity is the uppermost part of the respiratory system and provides the nasal passage for inhaled air from the nostrils to the nasopharynx and rest of the respiratory tract. The paranasal sinuses surround and drain into the nasal cavity.
24 lip 2023 · The venous drainage of the nose occurs via the anterior facial vein, the sphenopalatine vein, and the ethmoid veins. The lymphatic drainage of the nose occurs anteriorly via the upper lip lymphatics and posteriorly via the deep cervical and retropharyngeal lymph nodes.
24 lip 2023 · Air containing mucosal lined sinuses surround the nasal cavity, which includes the frontal, paired maxillary, sphenoid, and ethmoid sinuses. These cavities directly communicate with the nasal cavity. The secretions from these sinuses drain into the nasal cavity via the thin-walled ostia.
Nose. The nose detects odor molecules and helps filter and warm the air we inhale. The upper respiratory system, or upper respiratory tract, consists of the nose and nasal cavity, the pharynx, and the larynx. These structures allow us to breathe and speak.
5 mar 2024 · The apex is considered to be the tip of the nose. The base of this pyramidal structure refers to the inferior surface, commonly recognized as the area containing the nostrils. This base is continuous with the anterior part of the head. The section between the base and apex is termed the nasal dorsum.
The Nose and its Adjacent Structures. The major entrance and exit for the respiratory system is through the nose. When discussing the nose, it is helpful to divide it into two major sections: the external nose, and the nasal cavity or internal nose.
