Y1: Head and Neck Flashcards
Describe the anatomy of the oral cavity and pharynx.
The oral cavity includes the lips, cheeks, palate, tongue, and floor of the mouth. The pharynx consists of the nasopharynx, oropharynx, and laryngopharynx.
Describe the functional anatomy, muscles, and innervation of the tongue.
The tongue is composed of intrinsic and extrinsic muscles. Intrinsic muscles alter the tongue’s shape, while extrinsic muscles move it. Innervation is mainly provided by the hypoglossal nerve (XII).
Describe the anatomy of the temporomandibular joint (TMJ).
The temporomandibular joint connects the jaw to the skull. It involves the mandibular condyle, temporal bone, and an articular disc. It allows for jaw movements during activities like mastication.
Explain the movements and muscles involved in mastication.
Mastication involves jaw movements like elevation, depression, protraction, and retraction. Muscles such as the masseter, temporalis, and medial pterygoid are essential for chewing.
Identify and describe the main groups of pharyngeal muscles and their action during swallowing.
Pharyngeal muscles include the superior, middle, and inferior constrictors. They contract sequentially during swallowing to propel food from the mouth to the esophagus.
Identify the five layers of the scalp, from the skin to the periosteum.
The layers of the scalp are: 1) Skin, 2) Connective tissue, 3) Aponeurosis, 4) Loose areolar tissue, and 5) Pericranium (periosteum).
Describe the major bones that make up the skull.
The skull comprises the frontal, parietal, temporal, occipital, sphenoid, and ethmoid bones, along with the mandible and maxilla.
Identify the major features of the internal cranial cavity.
Internal cranial features include the nasal cavity, sinuses, three cranial fossae (anterior, middle, and posterior), and the foramen magnum.
Recognize the main lobes of the brain and the role of the meninges.
The main brain lobes are frontal, parietal, temporal, and occipital. Meninges (dura mater, arachnoid mater, and pia mater) protect and support the brain.
Describe the structure and function and main features of the nasal cavity.
The nasal cavity extends from the anterior nostrils to the posterior choanae. It warms, moistens, and filters inhaled air. Key features include nasal conchae and meatuses.
Describe the location and function of the paranasal sinuses.
Paranasal sinuses are air-filled cavities connected to the nasal cavity. They lighten the skull, provide resonance to the voice, and contribute to skull structure.
Locate and identify the paranasal sinuses.
Paranasal sinuses include the frontal, ethmoidal, sphenoidal, and maxillary sinuses.
Identify and recall the divisions of the pharynx.
The pharynx has three divisions: nasopharynx, oropharynx, and laryngopharynx.
Locate and describe the functional anatomy of the larynx.
The larynx is in the neck, connecting the pharynx to the trachea. It houses the vocal cords and participates in speech and breathing.
Locate the pharynx and describe its divisions and content.
The pharynx is in the throat and consists of the nasopharynx, oropharynx, and laryngopharynx. It serves as a passageway for air and food.
Identify and describe each of the cartilages that make up the larynx and the relative membranes and ligaments.
Laryngeal cartilages include the thyroid, cricoid, and epiglottic cartilages. Membranes and ligaments support their structure and function.