Let's get physical
a group of muscle fibres
what is a muscle fascicle
Your saliva, tears and sweat contain this enzyme that inhibits bacterial growth
what is lysozyme
this wave represents ventricular repolarization
what is the T-wave
this volume of blood is ejected from each ventricle every cardiac cycle
what is stroke volume
ACE inhibitors prevent the formation of this peptide hormone
what is Angiotensin II
these extensions of the sarcolemma allow transmission of the depolarizing wave into the muscle fibre/cell
what are transverse tubules or T-tubules
If these proteins are not detected on cells by natural killer cells the NK's immediately respond through directed chemical release and attack
The QT interval includes these waves
What are the Q,R,S and T waves
tachycardia is a heartrate above this value
100 beats per minute
this dilation at the beginning of the internal carotid artery contains receptors that respond to changes in blood pressure
what is the carotid sinus
the release of this molecule from the myosin head initiates the power stroke
what is phosphate
The movement of various leukocytes like neutrophils out of the capillary to the local tissue environment where they attack pathogenic organisms is part of this stage of inflammation
what is the cellular response
A elongated PR segment could indicate this abnormal condition
what is heart block
Venous blood returning to the heart is assisted by two physical pumps, the respiratory pump and this
what is the skeletal muscle pump
the cardiac center which controls heart rate, blood pressure and vessel diameter is located in this brain structure
what is the medulla oblongata
intracellular calcium binds to this protein that is a functional component of the thin filament
what is troponin
Kinins and these other lipid based chemical mediators of inflammation induce pain
what are prostaglandins
Between two subsequent heartbeats there are this many segments
What is one TP segment
a group of cardiac myocytes that contract together within a region of a chamber after being stimulated by the electrical conductive pathway is called this
what is a functional syncytium
to determine the pulse pressure of a patient you need to subtract these two values from one another
what is systolic and diastolic blood pressure
a single chain of sarcomeres located inside a muscle fibre is called this
what is a myofibril
This lymphocyte inhibits B and T cell activity
Depolarization of these specialized cardiac muscle cells located within the myocardium of both ventricular walls directly result in ventricular systole
what are the Purkinje fibres
thyroxine and adrenaline increase heart rate while an abnormally high level of blood calcium and this element decrease heart rate
what is potassium
there are three factors of resistance, overall vessel length, diameter and this
what is blood viscosity