Lecture 1 - General Org Flashcards
What are the 2 types of Cranium and what do they do?
Neurocranium - encases brain
Viserocranium - produces facial skeleton
What is the scalp?
Whole of the top of the head that runs from the top of the eye brows to the back of the head above the ears
What is the face?
From the eyebrows down to the chin
What are the 2 main nerves of the face?
Facial nerve
Trigeminal nerve
How many cranial nerves are there?
12 cranial nerves
What are the 2 types of muscles in the face?
Muscles of mastication
Muscles of facial expression
What nerve supplies the Muscles of Facial expression?
Facial nerve
What nerve supplies the Muscles of Mastication and what branch?
Trigeminal nerve (mandibular division)
What joint do the muscles of Mastication act on?
Temporomandibular joint
What is the prominent cheek bone called?
Zygoma
what is the bone in the middle of the skull called (where the nose is)?
Maxilla
What is the name of the jaw bone?
Mandible
What is the muscle of the forehead?
Occipitofrontalis
What does Occipitofrontalis do?
Raises eyebrows and wrinkles forehead
What is the muscle the circles around each bony orbit?
Orbicularis oculi
What are the 2 parts of orbicularis oculi?
Orbital
Palpebral
What is the general role of orbicularis oculi?
Blinking
Protecting the and keeps the eye moist
What is the role of the orbital part of Orbicularis oculi?
Squeeze eyelids tightly together