Cranial
What are the four major sutures and their relative positions?
- Saggital Suture- straight down the middle
- Coronal- across the frontal bone, like a headband
-Lamboidal- across the occipital bone
-Squamosal - between parietal and temporal bone
Contains the "Turk's Saddle", home of the pituitary gland.
What is the sphenoid bone?
A joint that is fused and immobile.
What is a suture
What percent of the bone is organic and what percent is inorganic?
30% organic, 70% inorganic
What are the types of joints?
Fibrous, cartilaginous, synovial
What are the ways to identify the occipital bone?
The foramen magnum
thicker than other cranial vault bones
variation in external protuberence
no meningeal grooves
The mental foramen are part of this bone.
What is the mandible?
How many cranial fossae are there in the cranial cavity, and what are their names?
Three fossae - Anterior, Middle, and Posterior Cranial Fossae.
What are the different types of bone tissue?
Cortical, cancellous, subchondral, periosteum, endosteum
The bone that is surrounded by and formed in tendon
What are sesamoid bones
what are the three auditory ossicles, and what is their shape?
Malleus- mallet
Stapes- triangle
Incus- backwards florida
Bat-shaped, with a greater and lesser wing.
What is the Sphenoid
Name the two paired cranial bones.
What is the temporal and Parietal
What is an osteon?
basic unit of adult compact bone
arranged in concentric tubes around a pair of blood vessels
connected through Haversian canal system
What is the difference between adduction and abduction?
adduction- moving limb towards midline of the body
abduction- moving limb away from midline of the body
Tips to identify the temporal bone
external auditory meatus is lateral
squama extends superiorly
meningeal grooves on endocranial surface
zygomatic process extends anteriorly
mastoid process is posterior
The spinal cord passes through this opening in the occipital bone
What is the foramen magnum
Which cranial bone has optic foramina, and what passes through them?
Sphenoid bone; Nerves that transmit vision.
What is the Haversian canal System?
Network of vascular canals that supplies nerves and blood vessels to bone, longitudinal orientation and pass through an osteon
What are the EIGHT different types of movement?
flexion, extension, adduction, abduction, supination, pronation, dorsiflexion, plantar flexion
What are the four different angles on the parietal bones
mastoid angle
frontal angle
sphenoid angle
occipital angle
The location where the mandible articulates with the cranium?
mandibular fossa
Where are the alveoli found, and what do they house?
Alveoli are sockets found in both jaw bones, and they house teeth.
Bone maintenance cells
helps maintain calcium homeostasis
formed from trapped osteoblasts
Whats is an osteocyte
bones are connected to other bones by
What is ligaments