LAB 4: Skeletal System Flashcards
What is the coronal suture?
A fibrous joint that separates the frontal bone from the parietal bones.
What does the mid-sagittal suture connect?
It connects the left and right parietal bones.
What is the lambdoidal suture?
A fibrous joint that separates the occipital bone from the parietal bones.
What is the squamosal suture?
A fibrous joint that separates the temporal bone from the parietal bones.
Name the bone located at the front of the skull.
Frontal bone
Name the bones that form the top and sides of the cranium.
Parietal bones
Which bone is located at the back of the skull?
Occipital bone
What is the function of the temporal bone?
It houses structures of the ear and forms part of the cranial base.
What is the sphenoid bone known for?
It is a complex bone that forms part of the base of the skull and the eye socket.
What role does the ethmoid bone play?
It forms part of the nasal cavity and the orbits.
What is the zygomatic bone commonly referred to as?
Cheekbone
What is the maxilla?
The upper jawbone that contains the upper teeth.
What is the mandible?
The lower jawbone that holds the lower teeth.
What is the vomer bone?
A bone that forms part of the nasal septum.
What are the palatine bones?
Bones that form part of the hard palate and the floor of the nasal cavity.
What is the hyoid bone’s unique characteristic?
It is the only bone in the human body that does not articulate directly with another bone.
What are cervical vertebrae?
The seven vertebrae in the neck region.
What are thoracic vertebrae?
The twelve vertebrae located in the upper and mid-back.
What are lumbar vertebrae?
The five vertebrae in the lower back.
What is the sacrum?
A triangular bone at the base of the spine formed by the fusion of five vertebrae.
What is the coccyx commonly known as?
Tailbone
What is the spinous process?
The bony projection off the back of each vertebra.
What is the vertebral foramen?
The opening in each vertebra that houses the spinal cord.
What are articular facets?
Surfaces on vertebrae that form joints with adjacent vertebrae.
What are costal facets?
Depressions on thoracic vertebrae for rib articulation.
What is the transverse process?
The lateral projections of a vertebra.
What do intervertebral discs do?
They provide cushioning and support between vertebrae.
What is the hypophyseal fossa?
A depression in the sphenoid bone that houses the pituitary gland.
What is the crista galli?
“crest of the rooster”
a wedge-shaped, vertical, midline upward continuation of the perpendicular plate of the ethmoid bone of the skull
