Joints & Movement
This is the most common joint in the human body
Synovial Joint
This bone is the only bone in the body that does not directly connect to the rest of the skeleton
hyoid bone
This muscle closes the eyelids
orbicularis oculi
The most superficial layer of bone tissue
periosteum
This fracture results in the collapse in spongy bone/trabeculae
compression fracture
These structures are responsible for holding two bones together
ligaments
How many vertebrae are in the lumbar region of the spine?
5
This muscle elevates the upper lip, as to show the front teeth
levator labii superioris
This structure is the future diaphysis of long bone.
primary ossification center
Muscle fibers attach to a central tendon at an angle
pennate muscle
These are found underneath or wrapping around some tendons to reduce friction as tendon moves across surfaces
bursae
This structure of the ribcage is made of mostly cartilage well into adulthood
xiphoid process of the sternum
Acts as a muscular sling supporting the pelvic viscera
Pelvic diaphragm (levator ani)
Layers of bone within the compact bone layer of tissue.
lamellae
These muscles produce the most force per unit of energy used during contraction
parallel muscles
Name the four movements specialized at the ankle joint
eversion, inversion, dorsiflexion, plantarflexion
This foramen allows passage for the spinal nerves.
intervertebral foramina
this muscle keeps the spine vertical through bilateral contraction
quadratus lumborum
Cartilagenous growth plate (where growth in length occurs) separating epiphyses from diaphysis
epiphyseal plate
muscle tension < resistance
eccentric contraction (muscle lengthens)
This joint movement involves rotating the arm medially, radius over the ulna
pronation
These structures function as sockets for tooth roots
alveolus (alveoli - plural)
The muscles compresses the abdomen during forced expiration or heavy lifting
external oblique
Osteocytes nearest blood vessels exchange nutrients, wastes, & gases with those further away through this structure
canaliculi
Name the four sinuses of the skull
Sphenoid, Frontal, Ethmoid, and Maxillary Sinuses