+
Related Flashcards
Related Topics
Cards In This Set
| Front | Back |
|
Axial muscles have both their...
|
Origins and insertions on parts of axial skeleton
|
|
Axial muscles functions...
|
Support& move head and spinal column, nonverbal communication, chewing, food processing& swallowing, aid breathing, support &protect abdominal &pelvic organs
|
|
5 groups of axial muscles based on location
|
Muscles of: head and neck, vertebral column, respiration, abdominal wall, pelvic floor
|
|
Where do muscles of facial expression have their origin?
|
In superficial fascia or on skull bones.
|
|
Where do these muscles insert into?
|
Into superficial fascia of skin, wo when they contract, they contort the skin, causing it to move.
|
|
Kllwhich cranial nerve are they innervated by?
|
Cranial nerve 7 (CN VII)
|
|
The epicranius is composed of___and a broad ____ , also called
|
The occipitofrontalis muscle, epicranial aponeurosis, aponeurtica
|
|
Where is the frontal belly and what does it do?
|
Superficial to frontal bone of forehead. when muscle contracts, raises eyebrows and wrinkles skin of forehead
|
|
What does the occipital belly do?
|
Covers posterior side of head. when it contracts, it retracts scalp slightly
|
|
What is deep to the frontal belly?
|
Corrugator supercilii
|
|
What does the Corrugator supercilii do?
|
Draws the eyebrows together and creates vertical wrinkle lines above the nose
|
|
What does the orbicularis oculi consist of?
|
Circular muscle fibers that surround the orbit
|
|
What happens when the orbicularis oculi contract?
|
The eyelid closes, as when you wink, blink, or squint
|
|
What does the levator palpebrae superioris do?
|
Elevates the upper eyelid when you open your eyes
|
|
What are some of the facial expressions associated with?
|
The nose
|
