#1
Which muscle is responsible for flexing the neck?
Sternocleidomastoid
ExplanationPrimary neck flexor muscle, attaches to mastoid process and sternum/clavicle.
#2
The superior boundary of the anterior triangle of the neck is formed by which structure?
Inferior border of the mandible
ExplanationAnatomical boundary marking the upper limit of the anterior neck triangle.
#3
The cricoid cartilage is located inferior to which structure?
Thyroid cartilage
ExplanationRing-shaped cartilage below the thyroid cartilage in the neck.
#4
The thyroid gland is located anterior to which structure?
Trachea
ExplanationGland situated in front of the windpipe.
#5
The jugular notch is located between which two structures?
Sternum and clavicle
ExplanationIndentation at the base of the neck, between breastbone and collarbone.
#6
What structure divides the neck into anterior and posterior triangles?
Sternocleidomastoid
ExplanationMuscle dividing neck into two triangles for surgical/anatomical reference.
#7
Which artery supplies blood to most of the neck muscles?
Carotid artery
ExplanationMain artery supplying oxygenated blood to the neck muscles.
#8
Which structure connects the thyroid cartilage to the hyoid bone?
Thyrohyoid membrane
ExplanationConnective tissue linking thyroid cartilage and hyoid bone.
#9
Which muscle is NOT a part of the infrahyoid muscles?
Scalenus anterior
ExplanationScalenus anterior is a neck muscle not grouped with infrahyoid muscles.
#10
Which muscle is primarily responsible for elevating the hyoid bone during swallowing?
Mylohyoid
ExplanationThin muscle forming the floor of the oral cavity, elevates hyoid during swallowing.
#11
What is the primary function of the epiglottis?
Prevents food from entering the trachea during swallowing
ExplanationFlap of tissue covering trachea during swallowing, prevents food aspiration.
#12
Which nerve innervates the majority of the muscles in the neck?
Accessory nerve
ExplanationMajor nerve supplying sternocleidomastoid and trapezius muscles.
#13
What is the name of the space located between the visceral and parietal layers of the deep cervical fascia?
Pretracheal space
ExplanationSpace between two layers of fascia, containing thyroid gland and trachea.
#14
Which structure is NOT located within the carotid sheath?
Facial artery
ExplanationCarotid sheath contains internal jugular vein, common carotid artery, and vagus nerve, not facial artery.
#15
The carotid sinus is a specialized region located in which artery?
Common carotid artery
ExplanationDilated region in the artery, senses blood pressure changes.