Bones
Name the bones which makes up the axial skeleton
skull, vertebral column, rib cage, middle ear bones, hyoid
What bones are joined by the sagittal suture
left and right parietal bones
what is the definition of amphiarthrosis?
slightly moveable joints
The neurons that stimulate muscle contraction are called _____ neurons.
motor
What are the three concentric layers of wrapping
Epimysium, Perimysium, and Endomysium
Give an example of an irregular bone
Vertebrae
what is the name of the process which articulates with the temporal bone
condylar process
what is the definition of synarthrosis?
joints which have little to no movement
The membranous network that wraps around myofibrils and holds relatively high concentrations of calcium is known as the
sarcolemma
what is the action of the nasialis muscle?
flares the nostrils
Place he zones found in an epiphyseal plate in order
a: Calcified cartilage
b: Hypertrophic cartilage
c: Ossification
d: Resting cartilage
e: Proliferating cartilage
d, e, b, a, c
Name the membranous sheets that connect developing cranial bones are called
fontanelles
What are fibrous joints?
bones held together by dense connective tissue
A sarcomere is defined as the distance from one _____ to the next adjacent ____ . (The same answer fills in both spaces.)
z-line
What is the action of the orbicularis oris?
puckers the lips
Name the hormone which inhibits bone growth
parathyroid hormone
What are the ossicles
3 tiny bones in the ear
What cartilaginous joints?
bones joined by cartilage
The calcium ions involved in skeletal muscle contraction bind to a(n)______ subunit.
troponin
What muscles produces the frown?
Depressor anguli oris
Name the suture which is the articulation between the occipital and parietal bones
Lambdoid
Place the steps of intramembraneos ossification in order:
a. osteoid undergoes calcification
b. woven bone and periosteum form
c. ossification centers form within thickened regions of mesenchyme
d. lamellar bone replaces woven bone
c, a, b, d
What are synovial joints?
Bones joined by ligaments with fluid-filled joint cavity separating bone surfaces
Name the 3 proteins found on thin filaments
actin, troponin, tropomyosin
What muscle tenses skin of neck and pulls lower lip inferiorly?
Platysma