Quiz 3 Review Flashcards
What do you call the imaginary line (plane) that divides the body into “equal” left and right sides?
Median plane or Midsagittal plane
What is a sagittal plane?
Any plane created by an imaginary plane that is parallel to median/midsagittal plane.
What do you call the imaginary line (plane) that divides the body at any level into anterior and posterior part? (divides body into front and back parts)
Frontal plane or Coronal plane
What is a horizontal plane?
- An imaginary line that divides the body into superior and inferior parts.
- They do NOT have to be equal parts
- (This is always perpendicular to the median/ midsagittal plane)*
What do you call a flat bony structure?
Plate
(Know where the Cribriform plate and Orbital plate are located- slide 4 of review packet)
What do you call a straight, small ridge?
Line
(Know where the superior temporal line and inferior temporal line are located-slide 5 of review packet)
What is a Tuberosity?
A large, often rough prominence
(Know location maxillary tuberosity-slide 6 of review packet)
What does the occipital bone articulate with?
The occipital bone articulates with the parietal, temporal, and sphenoid of the skull.
What big hole do you see on the external surface of the occipital bone from the inferior view?
Foramen Magnum
Where is the superior orbital fissure located?
Lateral to the optic canal between the greater and lesser wings of the sphenoid bone.
(it is curved and slitlike)
True/ False:
The inferior orbital fissure cannot be seen between the greater wing of the sphenoid bone and the maxilla.
FALSE
(It can be seen)
(Know the locations of the greater wing of sphenoid bone, inferior orbital fissure, and maxilla-slide 11 on review packet)
Be able to locate
- Nasal bone
- Lacrimal bone
- Zygomatic bone
- Inferior nasal concha
- Vomer
- Maxilla
- Mandible
SEE SLIDE 12 ON REVIEW PACKET
Be able to locate the
- Pterygopalatine fossa
- Lateral pterygoid plate of the sphenoid bone
- Maxillalry tuberosity
SEE SLIDE 14 ON REVIEW PACKET
Be able to locate these sutures of the hard palate:
- Median palatine suture
- Transverse palatine suture
SEE SLIDE 14 ON REVIEW PACKET
True/ False:
Each temporal bone is scomposed of four parts: the squamous, tympanic, petrous, and zygomatic process.
FALSE!
Each temporal bone is composed of the squamous, tympanic, petrous, and Mastoid process (Not the zygomatic process)
What is a Cornu?
A hornlike prominenece
Ex: Greater cornu and Lesser cornu of hyoid bon
Where is the Orbicularis OCULI muscle located?
It is the muscle surrounding the eye.
Wher is the Obicularis ORIS muscle located?
It is the muscle surrounding the lips
What is the function (action) of the Depressor labii muscle?
It DEPRESSES the lower lip.
This helps to voluntarily expose the mandibular incisor teeth
What is the function (action) of the Depressor Anguli muscle?
It DEPRESSES the ANGLE of the mouth.
What is the function (action) of the platysma muscle?
To raise the skin of the neck and forms noticeable vertical and horizontal ridges and depressions.
(The muscle Men use to shave)
True/ False:
The platysma muscle can also pull the labial commissures down. (what a person does when they grimace)
TRUE
What is the function of the Buccinator muscle?
To pull each labial commissure laterally which shortens the cheek both vertically and horizontally.
True/ False:
The Buccinator muscle action keeps food pushed back on the occlusal surface of the posterior teeth.
TRUE
True/ False:
By keeping the food in the correct position when chewing, the Buccinator strains the muscle of mastication.
FALSE
It assists the muscle of mastication.
Locate the …..
- Sternocleidomastoid Muscle
- Clavicle
- Interior Belly of Omohyois Muscle
SEE SLIDE 21 IN REVIEW PACKET
Locate the …….
- Hyoid Bone
- Superioir Belly of Omohyoid Muscle
- Sternohyoid Muscle
- Sternothyroid Muscle
- Sternum
SEE SLIDE 21 IN REVIEW PACKET
