Kinesiology Exam 4 Review

These flashcards cover key terms and concepts from the kinesiology lecture notes, including blood flow, cardiac function, and physiological responses.

Blood Pressure

The force exerted by circulating blood on the walls of blood vessels.

Vena Cava

The large vein that carries deoxygenated blood from the body back to the right atrium of the heart.

Resistance to Flow

The opposition to blood flow, primarily determined by the radius of blood vessels.

Sarcoplasmic Reticulum

An organelle that stores calcium ions, which play a crucial role in muscle contraction.

Parasympathetic Nervous System

The part of the autonomic nervous system that calms the body and slows heart rate.

Mean Arterial Pressure (MAP)

The average arterial pressure during a single cardiac cycle.

Arterioles

Small blood vessels that regulate blood flow and pressure by constricting or dilating.

Hemostasis

The process that prevents and stops bleeding, or hemorrhage.

Red Blood Cells

Cells that transport oxygen and carbon dioxide in the blood.

Coagulation Cascade

A series of steps involving activation of coagulation factors leading to blood clot formation.

Intercalated Disk

A specialized connection between cardiac muscle cells that includes gap junctions.

End-Diastolic Volume (EDV)

The amount of blood in the ventricles at the end of diastole, right before contraction.

Frank Starling’s Law

The principle that the strength of the heart's contraction is directly related to the volume of blood filling the heart.

Sympathetic Nervous System

The part of the autonomic nervous system that increases heart rate and myocardial contractility.