Exam II - General Information Flashcards
What are the 6 cartilages of the Larynx?
Thyroid Cricoid Epiglottic Arytenoid Cuneiform Corniculate
What joint allows rotation of the thyroid cartilage around a horizontal axis?
Cricothyroid Joint
What pierces the thyrohyoid membrane?
Internal Laryngeal Nerve and Superior Laryngeal Vessels
What is the true vibratory part of the vocal cord?
Vocal Ligament/Fold
The superior margin of the quadrangular membrane forms ______, while the inferior margin forms ______.
Aryepiglottic ligament; Vestibular ligament
What initiates the cough reflex?
Vestibular Folds (False Vocal Cords)
What is the narrowest part of the laryngeal cavity?
Rima Glottidis
What is the sound producing part of the larynx?
The Glottis (rima glottidis + vocal folds)
What is the “oil can” of the vocal folds?
Laryngeal Succule
What are the elevators of the larynx?
Thyrohyoid Stylohyoid Mylohyoid Digastric Stylopharyngeus Palatopharyngeus
What are the depressors of the larynx?
Omohyoid
Sternohyoid
Sternothyroid
What is the only muscle of the larynx NOT innervated by the recurrent laryngeal nerve?
Cricothyroid (External Laryngeal Nerve)
What muscle raises the pitch of the voice?
Cricothyroid Muscle
What is the muscle of whispering?
Lateral Cricoarytenoid
What are the muscles of coughing?
Transverse Arytenoid and Oblique Arytenoid
What muscle closes the laryngeal inlet?
Aryepiglottic Muscle
What muscle opens the laryngeal inlet?
Thyroepiglottic Muscle
What muscle lowers the pitch of the voice?
Thyroarytenoid Muscle
What muscle is responsible for fine-tuning the voice?
Vocalis Muscle
Tension of the vocal folds is ______ to raise the pitch, and ______ to lower the pitch.
Increased (Cricothyroid); Decreased (Thyroarytenoid and Vocalis)
The recurrent laryngeal nerve is motor to ______ and sensory to ______.
all intrinsic muscles of larynx except cricothyroid; mucosa of the larynx below the vocal fold
The internal laryngeal nerve is a branch of ______, and is sensory to ______.
Superior laryngeal nerve; mucosa of the larynx above the vocal fold
The external laryngeal nerve is a branch of ______, and is motor to ______ and sensory to ______.
Superior laryngeal nerve; cricothyroid; inferior constrictor muscle
What is the blood supply of the larynx?
Superior laryngeal artery (from superior thyroid) and Inferior laryngeal artery (from inferior thyroid)
______ lymph vessels drain lymph TO a node, while ______ lymph vessels drain lymph FROM a node.
Afferent; Efferent
How is lymph moved?
Skeletal muscle contraction
What are the superficial lymph nodes of the head?
Occipital
Mastoid
Parotid
What are the superficial lymph nodes of the neck?
Submandibular
Submental
Anterior Cervical
Superficial Cervical
Where are the deep cervical lymph nodes found?
Inside the carotid sheath
What lymph nodes drain the tongue?
Jugulodigastric and Jugulo-omohyoid nodes
Where does the right jugular trunk drain into?
The junction between the internal jugular and subclavian veins
Where does the left jugular trunk drain into?
The thoracic duct
What lymph node drains the lower lip, the floor of the mouth, and the tip of the tongue?
Submental Node
What lymph node drains the cheek, the side of the nose, the upper lip, lateral part of the lower lip, gums, and margin of the tongue?
Submandibular Node
What is the term that describes the spread of cancer via the lymphatic system?
Lymphogenous Metastasis
The breast is derived from what embryonic tissue?
Epidermis
The breast is located between which ribs?
2 and 6
What rib level is the nipple usually found?
4th intercostal space
What part of the breast is the most common developmental site for cancer?
Axillary tail
T/F) Each mammary gland has one lob of glandular tissue.
Fale (15-20 lobes each)
What is the blood supply of the breast?
Internal thoracic artery
Thoracoacromial artery
Lateral thoracic artery
Intercostal arteries
75% of breast lymph drains into what lymph nodes?
Axillary Nodes
The body of the sternum articulates with which rib cartilages?
2nd - 7th rib
What makes up the sternal angle? What V.L. is it found?
Manubrium and Body; TV 4 & 5
What are the boundaries of the Superior Thoracic Aperture (Thoracic Inlet)?
Manubrium, 1st Rib, 1st T vertebra
What are the boundaries of the Inferior Thoracic Aperture (Thoracic Outlet)?
Xiphoid Process Costal Margin 12th Rib Distal End of 11th Rib 12th Thoracic Vertebra
What muscles are used for inspiration?
Diaphragm and External Intercostals
What muscles are used for forced expiration?
Internal Intercostals, Innermost Intercostals, Subcostalis, Transverse Thoracis
What are the branches of the Internal Thoracic Artery?
Pericardiacophrenic A., Anterior Intercostal A., Musculophrenic A., Superior Epigastric A.
What supplies the anterior aspect of the thoracic wall?
Internal Thoracic Artery and its branches
What supplies the posterior aspect of the thoracic wall?
Supreme (Superior) Intercostal A., 3rd-11th Posterior Intercostal A., Subcostal A.
What drains the anterior aspect of the thoracic wall?
Internal Thoracic Vein
What is the thickening of the fascia over the apex of the lung called?
Suprapleural membrane