Mammalian sperm will migrate against the direction of the flow—using CatSper calcium channels (like sea urchin sperm) to sense calcium influx and monitor the direction of the current, this process is known as:

TLS Online TPP Program

#Question id: 30049

#Unit 7. System Physiology – Animal

Myocardial fibers are separated by membranes, but depolarization spreads radially (syncytium) because of the presence of:

TLS Online TPP Program

#Question id: 30050

#Unit 7. System Physiology – Animal

In the human heart, the SA node is located at the junction of the superior vena cava with the:

TLS Online TPP Program

#Question id: 30051

#Unit 7. System Physiology – Animal

Which of the following normally has a slowly depolarizing “prepotential”?

TLS Online TPP Program

#Question id: 30052

#Unit 7. System Physiology – Animal

Which of the following channels opening contribute to the repolarization of the ventricular muscle fibers?

TLS Online TPP Program

#Question id: 30053

#Unit 7. System Physiology – Animal

The second heart sound is produced by:

TLS Online TPP Program

#Question id: 30054

#Unit 7. System Physiology – Animal

The fourth heart sound is produced by: