Joints
Which functional classification of a joint only allows for slight movement?
Amphiarthroses
What structure in a skeletal muscle cell stores calcium?
Sarcoplasmic reticulum
Which movement role is the primary mover?
Agonist
Which type of glial cell acts as a phagocyte in the CNS?
Microglial cells
How do neurons perform mitosis?
They don't, they are amitotic
Which joint is stabilized by the ulnar collateral ligament and the radial collateral ligament?
Which enzyme destroys acetylcholine at the end of nervous stimulation in a muscle contraction?
Acetylcholinesterase
Where are the soleus and gastrocnemius muscles?
Leg
What is the function of an axon?
Transmits outgoing electrical signals
What is the name of the connective tissue sacs in synovial membranes that help protect against friction?
Bursae
What is the name of the fibrocartilaginous rim around the glenoid cavity that helps add depth?
Glenoid labrum
Which layer of muscle anatomy covers individual muscle fibers?
Endomysium
What do the trapezius and serratus anterior move?
Pectoral girdle (shoulder)
Which muscle type does the ANS not innervate?
Skeletal muscle
What does the arrangement of myofilaments in a skeletal muscle cell make?
Striations
What is the functional of the synovial membrane of a joint?
Secretes lubricating synovial fluid
What does creatine phosphate do in a muscle cell?
Stores energy that resynthesizes ADP to ATP
Which movement role opposes or reverses a movement?
Antagonist
What do gray and white matter contain?
Gray matter contains neuron cell bodies (unmyelinated), white matter contains axons (myelinated)
What do calcium ions do during a muscle contraction?
Bind to troponin to allow the muscle to contract
Which ligaments in the knee joint protect the alignment of the femoral and tibial condyles + limit the movement of the femur?
Cruciate ligaments (ACL and PCL)
Actin filaments
Where are the orbicularis oculi and orbicularis oris muscles located?
Face
Compare and contrast Schwann cells and oligodendrocytes
Both form myelin sheaths, but Schwann cells do so in the PNS and oligodendrocytes do so in the CNS
What do cardiac muscles contain that skeletal muscles don't?
Intercalated discs that allow for coordinated contraction