Human Phys Skeleton #1 Test
Terms in this set (65)
What are the four functions of bones?
protection, storage, movement, blood cell formation
The periosteum is is secured to the underlying bone by dense connective tissue called...
Vertebrae in adults... in children...
function of vertebral column
protects the spinal cord and supports the head and body
Cervical vertebrae #
-Appears as a bony ring and supports the head
-has "dens" that pivot to turn the head (dentoid process or odontoid process)
Provide attachment for muscles
-Articulate w/ ribs
-Stronger than cervical
-Support the weight of the body
-5 fused vertebrae
-Lead to coccyx
-comprised of 4 fused vertebrae
-lowermost portion of vertebral column
# of ribs
-last two pairs of ribs; do not attach to sternum
a U-shaped bone in the neck that supports the tongue.
The humeros, radius and _______ articulate to form the elbow joint
the wrist is composed of eight bones called the
the coxal bones, sacrum and coccyx together form the
Portion of the skeletal system that consists of the skull, rib cage, and vertebral column
Bones of the limbs and limb girdles that are attached to the axial skeleton
Bones in skull
- 8 cranial, 13 facial, and the mandible
-Lie at sides of cranium posterior to the frontal lobe.
-Join at sagittal suture.
-They meet frontal bone along the coronal suture
-back of head
suture that separates parietal bones from occipital bone
large opening in base of occipital, which allows the spinal cord to join with the brain
artiuculate with the 1st vertebra
at sides of cranium (lower are where ear openings are found)
between temporal and parietal bones
external auditory meatus
articulates with the mandible
attaches to neck muscles; a spongy bone that projects from the temporal)
anchors muscles associated with the tongue and pharynx
projects anteriorly and hoins with the temporal process fo the zygomatic bone to help form the cheek
Winged bone at anterior floor of cranium
saddle-like depression that houses pituitary gland
In front of sphenoid
hold together ethmoid bone
The skeleton is formed _____ weeks after fertilization, and is initially made of _______
6 weeks; hyaline cartilage
part of nasal septum that divides nasal cavity into 2 separate cavities
13 immovable bones and a movable mandible
largest sinuses in the skull
-houses upper teeth
-sides of nasal cavity
-floor of orbits & hard palate
L shaped bone that helps form palate and nasal cavity
make up part of the orbit at the inner angle of the eye
makes uo lower part of nasal spectum
inferior nasal conchae
The lowermost scroll-shaped bones on the sidewalls of the nasal cavity.
Endochondral ossification is the process that:
Turns cartilage into bone
This is the process of replacing other tissues with bone
The process of endochondral ossification starts with what type of cells?
bone forming cells
mature bone cells
The structural unit of a compact bone is?
Vertebrae are considered what kind of bones?
Spongy bones are made up of a framework called what?
trabeculae of spongy bone
The small spaces in bone tissue that are holes in which osteocytes live are called what?
These are the very small bones that are at the medial wall of each orbit.
What are the fontanels and what benefits do they offer the baby? What advantages do they confer on the baby and the mother?
The spaces between skull plates. They allow the baby's brain to grow and makes it easy to pass through the birth canal
This bone contains the teeth.
This bone house the apparatus of the inner and middle ear.
This bone is wing shaped and extends behind the eyes and forms part of the floor of the cranial vault.