Physiology

Exam 3 Review Questions

What is the importance of

A) T tubules

B) Sarcoplasmic reticulum

C) Troponin

D) Tropomyosin

E) Ryanodine receptors

What is happening during the latent period of a muscle twitch

Explain what happens during the excitation contraction coupling in a muscle cell

Explain the cross bridge cycle of a muscle cell

List the blood types accepted by the following blood types

A+ ,

O+ ,

B- ,

AB-

The following blood types can donate their blood to

A+ ,

O+ ,

B- ,

AB-

Adam’s blood is O-. Why would the plasma portion of his blood not be included during a blood transfusion to someone with B- blood ?

Explain who gets the Rhogam shot and how it works

Explain the function of those proteins

A) albumins

B) globulins

C) fibrinogen

D) thrombopoietin.

E) transferrin

F) Erythropoeitin

Which ECG wave would represent the following events

atrial repolarization

ventricular repolarization

ventricular depolarization

atrial depolarization

Atrial contraction /Atrial relaxation

Ventricular contraction / relaxation

Write down the autorhythmic cells in the correct order for conveying electrical signals through a normal heart

Explain the steps of action potential in myocardial contractile cells vs autorythmic cells (pacemaker cells)

Define

A) End systolic volume

B) Cardiac output

C) End diastolic volume

Explain the excitation contraction coupling steps in a contractile cardiac cell

How is acetylcholine going to affect heart rate vs norepinephrine