(A&P) Face, Neck & Shoulders Flashcards
What are the primary functions of facial muscles?
They create facial expressions and help shape our face.
How do facial expressions affect the skin over time?
Repeated expressions can produce lines on the skin, such as frown lines.
What is the role of the 7th cranial or facial nerve?
It controls almost all facial muscles.
How many bones form the skull, and how are they divided?
22 bones, divided into 14 facial bones and 8 cranial bones.
What is the function of the facial bones?
They form facial features and support structures like the eyes and teeth.
What is the structure and function of the cranium?
It’s made of thin, curved bones that protect the brain.
What are the main muscles of the face?
Orbicularis oculi, orbicularis oris, buccinator, and zygomaticus.
What is the significance of the nasal bones?
They form the bridge of the nose.
Function of the maxillae bones?
They form the upper jaw and hold the upper teeth.
Role of the mandible bone?
It forms the lower jaw and holds the lower teeth.
How does the occipital bone contribute to the cranial structure?
It forms the lower back of the cranium.
Role of the frontal bone?
It forms the forehead and the upper walls of the eye sockets.
What is the function of the parietal bones?
They form the sides and top of the head.
How do the temporal bones contribute to facial structure?
They provide muscle attachment points and form the sides of the head.
What is the sphenoid bone, and where is it located?
A bat-shaped bone at the base of the cranium, joining together all the bones of the cranium.
How do muscles in the face, neck, and shoulders work together?
They facilitate head movement, facial expressions, and support the head and neck.
What are the major muscles found in the neck?
The sternocleidomastoid, scalene muscles, and trapezius.
What is the function of the sternocleidomastoid muscle?
It helps in rotating and flexing the neck.
How do the scalene muscles contribute to neck movement?
They assist in flexing and slightly rotating the neck.
What role does the trapezius muscle play in shoulder movement?
It stabilizes and moves the scapula, aiding in various shoulder movements.
What is the primary function of the deltoid muscles?
The deltoid muscles, located on the shoulder, are responsible for lifting and rotating the arm.
