Sliding Filament Theory
Muscle fibers are arranged into *BLANK* that are covered with connective tissue.
What are *fascicles*
Coordination of movement occurs *BLANK* brain involvement
Coordination of movement occurs *before* brain involvement
The heart has four chambers *BLANK BLANK*, *BLANK BLANK*, *BLANK BLANK* and *BLANK BLANK*
The heart has four chambers *left ventricle*, *right ventricle*, *left atrium* and *right atrium*
Flow depends on *BLANK BLANK* not hydrostatic pressure.
Flow depends on *pressure gradients* not hydrostatic pressure.
Valves in the veins prevent *BLANK* of blood.
Valves in the veins prevent *backflow* of blood.
*BLANK* is the motor protein responsible for movement.
What is *Myosin*
*BLANK* Contraction is when a muscle contracts and shortens; *BLANK* Contraction is when a muscle contracts but does not shorten
*Isotonic* Contraction is when a muscle contracts and shortens; *Isometric* Contraction is when a muscle contract but does not shorten
Blood is mostly composed of *BLANK*.
Blood is mostly composed of *plasma*.
*BLANK BLANK* is the pressure exerted on the walls of the container by the fluid within the container.
*Hydrostatic pressure* is the pressure exerted on the walls of the container by the fluid within the container
Exchange between the blood and cells takes place at the *BLANK*
Exchange between the blood and cells takes place at the *capillaries*
*BLANK* is the protein that makes up the thin filaments.
What is actin
Mechanical advantage can be defined as *BLANK BLANK* over *BLANK BLANK*
Mechanical advantage can be defined as *output force* over *input force*
The four main valves of the heart are the *BLANK* valve, *BLANK* valve, *BLANK* valve, and *BLANK* valve
The four main valves of the heart are the *tricuspid* valve, *pulmonary* valve, *mitral* valve and *aortic* valve
Resistance is strongly dependent on tube *BLANK*, so if you double the radius, you would increase flow by *BLANK*.
Resistance is strongly dependent on tube *diameter*, so if you double the radius, you would increase flow by *16*.
Capillaries have unusual cell junctions that allow fluids and small solutes to exit in *BLANK BLANK*
Capillaries have unusual cell junctions that allow fluids and small solutes to exit in *bulk flow*
*BLANK* blocks *BLANK* from binding onto *BLANK*
*Tropomyosin* blocks *myosin* from binding onto *actin*
The 3 types of skeletal muscle are *BLANK* fibers, *BLANK* fibers and *BLANK* fibers
The 3 types of skeletal muscle are *fast* fibers, *slow* fibers and *intermediate* fibers
The heart cycles between contraction (*BLANK*) and relaxation (*BLANK*)
The heart cycles between contraction (*systole*) and relaxation (*diastole*)
Q α ΔP/R shows the flow relationship; Q represents *BLANK BLANK*, R represents *BLANK*, and ΔP is the *BLANK BLANK*
Q α ΔP/R shows the flow relationship; Q represents *flow rate*, R represents *resistance*, and ΔP is the *pressure gradient*
Blood flow is regulated by changing resistance within *BLANK*
Blood flow is regulated by changing resistance within *arterioles*
Myosin releases *BLANK* at the end of the *BLANK*
Myosin releases *ADP* at the end of the *powerstroke*
*BLANK BLANK* send information about muscle stretch to the *BLANK*.
Muscle Spindles send information about muscle stretch to the CNS.
Conduction within the heart starts when the *BLANK BLANK* depolarizes
Conduction within the heart starts when the *SA Node* depolarizes
The *BLANK*, *BLANK*, and *BLANK* have the highest mean systemic blood pressure.
The *aorta*, *arteries*, and *arterioles* have the highest mean systemic blood pressure.
High *BLANK-BLANK* area correlated to low *BLANK* of blood flow
High *cross-sectional* area correlated to low *velocity* of blood flow