Diastolic blood pressure averages around

The myocyte's plasma membrane is called the:

A triad consists of

What is the action of the masseter muscle?

Tropomyosin is a component of what type of filament?

At any given moment, most of the body's blood can be found in:

When the sarcomere contracts, which area DOES NOT narrow?

When the posterior neck muscles balance the weight of the head along the atlanto-occipital joint, this is an example of a:

Working together, these muscles flex the head. Individually, they flex and rotate the head to the opposite side. They also function as accessory muscles of inspiration.

This fascicle shape is a circular arrangement that surrounds body openings and allows voluntary control over urination/defecation.

The effects of epinephrine / norepinephrine on the cardiovascular system include all of the following EXCEPT:

Locations where vessels connect via pathways called collateral vessels are called

The term "synaptic cleft" refers to

An athlete checks their pulse via this artery in the neck.

The heart is also an endocrine organ, secreting which of the following hormones to lower blood pressure?

How do you calculate cardiac output?

The medical term for heart attack is:

Which wave on the electrocardiogram (ECG) represents ventricular repolarization?

The term "propagate" when referring to an action potential means

Which of the following elevates the rib cage assisting in inspiration?

During muscle fiber relaxation

Tropomyosin

Which wave on the electrocardiogram (ECG) represents atrial depolarization?

Which of the following is NOT assisting in venous return

S2 can be auscultated via stethoscope when the following occurs.

The power stroke

In order to trigger a muscle contraction, an action potential must reach the

During depolarization, what ion moves into the cell?

The contraction portion of the cardiac cycle is called:

Which has the thickest tunica media?

____is released from the SR in response to arrival of an action potential

Which type of skeletal muscle fibers are used for sprinting!

An insufficient mitral (bicuspid) valve would allow the backflow of blood into the:

The superior and inferior vena cavae empty into which heart chamber?

During repolarization, what ion moves out of the cell?

The left and right coronary arteries receive blood from the:

Troponin has three subunits. Which of the following does NOT bind to one of these subunits?

Acetylcholine is released from the synaptic terminus in response to

This muscle rotates the forearm so the palm faces posteriorly (in anatomical position).

Sarcolemma repolarization during relaxation

Which muscle is not part of the quadriceps femoris that extend the leg at the knee?

The superior chambers of the heart are called:

Which of the following pacemaker cell populations has the fastest intrinsic rate of depolarization (60+ pm)?

Which of the following does not move the scapula?

The end plate potential is generated by the influx of _____ into the motor end plate.

If blood volume goes down, blood pressure will likely:

This segment/interval shows depressions or elevations during myocardial ischemia and myocardial infarction.

Blood in the pulmonary vein is:

This extrinsic eye muscle rotates the eyeball upward and toward the lateral side of the orbit

Heart rate above 100 bpm is called...

Which is NOT a function of the muscular system?

Which substance found in the myocyte can generate enough ATP for about 10 seconds of maximum muscle activity

This is also known as the heartrate.

Where are baroreceptors located?

This great vessel supplies the entire systemic circuit with oxygenated blood.

Which wave on the electrocardiogram (ECG) represents ventricular depolarization?

Agents that affect contractility are known as agents.

A flat-line rhythm strip is also called...

Which is TRUE about skeletal muscle and cardiac muscle?

Which of the following is composed of endothelium?

This is the functional unit of contraction in the myofibril.

When your body temperature rises, skin blood vessels:

The antagonist of the brachialis is the:

The sarcoplasmic reticulum (SR) surrounding myofibrils stores and releases what ion?

Which is the most medial hamstring (that extends the thigh and flexes the leg)?

This muscle raises the eyebrows

This muscle naming term means "jagged" appearance (like a saw).