Lecture Exam Two Flashcards
Powerpoint slides that are going to show up on the exam.
What does the skeletal system compose of?
- bones
- cartilages
- joints
- ligaments
What are the two major divisions of the skeletal system?
- axial
2. appendicular
How many bones comprise the skull
22
[…] bones provide sites of attachment for the head and […].
cranial; neck
Which is the integral bone of the skull? Why?
mandible
not attached by sutures to remainder of skull
The frontal lobe of the cortex rests on which cranial fossa?
anterior
Cranial […] forms superior, lateral, and posterior portion of skull as well as […].
vault; forehead
Cranial […] forms inferior aspect of the skull.
base
The internal base is divided into which three “steps”/fossae?
- anterior
- middle
- posterior
Brain sits within the […] enclosed by the cranium […].
fossae; vault
The skull has […] named openings.
85
Generally, what are the openings of the skull?
foramina (foramen), canals, fissures
What are the 8 cranial bones?
- frontal
- parietal (x2)
- occipital
- temporal (x2)
- sphenoid
- ethmoid
The skull bone is connected to the rest of the cranium posteriorly via the coronal suture. It is the […] bone.
frontal
Which suture connects the left and right parietal bones?
saggital
Which of the following structures serves as a “seat” of the endocrine system by supporting the pituitary gland?
sella turcica
*think of a saddle
The “big hole” in the skull that allows the spinal cord to connect to the brain stem is called the […].
foramen magnum
This bone contains four major areas: squamous, tympanic, mastoid, and petrous. It is the […] bone.
temporal
How can mastoiditis develop? Is this a serious imbalance?
due to a middle ear infection
infection could easily spread to the brain if not treated
This bone looks somewhat like a butterfly, with a pair of Greater Wings and a pair of Lesser Wings. It is the […] bone.
sphenoid
This is the deepest skull bone. It’s superior part, the cribriform plate, has a large number of perforations (“foramina”) which allows the olfactory nerve to connect to the olfactory bulb. It is the […] bone.
ethmoid
What is the scientific name for the cheekbone?
zygomatic bone
Which bone does not articulate directly with any other bone in the skeleton?
hyoid
**consisting of greater/lesser horn
What is the function of the hyoid bone?
- acts as a movable base for tongue
2. site of attachment for muscles of swallowing and speech