Joint Function
The scientific study of joints is known by this term
Arthrology
This tough tissue is responsible for connecting a muscle to a bone
Tendon
This is the primary neurotransmitter responsible for stimulating skeletal muscle contraction
Acetylcholine (ACh)
This is considered the fundamental "functional unit" of a skeletal muscle fiber.
Sarcomere
Skeletal muscle is distinguished from smooth muscle because it possesses these two characteristics
Voluntary and striated
This functional classification describes a joint that is slightly movable
amphiarthrosis
This is the specific name given to the cytoplasm of a muscle cell
Sarcoplasm
Under low oxygen availability, the body converts pyruvate into this molecule
Lactate
A single, brief contraction followed by a relaxation period in response to one stimulus is called this
Muscle Twitch
When ACh binds to receptors on the motor end plate, it opens chemically gated ion channels. The rapid movement of which ion into the muscle fiber causes depolarization?
Sodium (Na+)
This specific type of fibrous joint is characterized by a "bolt-and-socket" connection, such as a tooth in its socket
Gomphosis
To move tropomyosin out of the way and expose binding sites, calcium must first bind to this protein
Troponin
Of all the methods of energy production, this one produces the greatest amount of ATP.
Aerobic cellular respiration
While the resting membrane potential of a muscle fiber is -90 mV, this is the specific threshold required for depolarization
-65mv
What is the name of the enzyme located in the synaptic cleft that breaks down acetylcholine to prevent continuous muscle stimulation
Acetylcholinesterase/AChE
Which functional classification describes a joint that is 'freely movable' and typically contains a fluid-filled cavity
This thin layer of connective tissue surrounds each individual muscle fiber.
Endomysium
These specific skeletal muscle fiber types are best suited for short durations and intense movements like weightlifting
Fast Glycolytic fibers (Type IIx)
The sarcoplasmic reticulum acts as a storage facility for this ion
Calcium (Ca2+)
Diploe" is the specific name given to this type of bone found within a flat bone.
spongy bone
What is the name of the hip joint, and what kind of joint is it?
Ball-and-socket
Smooth muscle cells are not striated or rectangular; they are shaped like this "spindle" form.
Fusiform
In skeletal muscle fibers, what is the primary function of the T-tubules during the process of excitation-contraction coupling
To provide a pathway for the rapid conduction of action potentials
In the crossbridge cycle, this event must happen immediately after ATP binds to the myosin head.
The release of the myosin head from actin
Scaphocephaly is a condition caused by the premature closing of this specific cranial suture
sagittal suture