Specifically, what part of the intrinsic conduction system stimulates the atrioventricular (AV) node to conduct impulses to the atrioventricular bundle?

sinoatrial (SA) node
bundle branches
subendocardial conducting network (Purkinje fibers)
interventricular septum


sinoatrial (SA) node

Anatomy & Physiology

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Which anti-microbial substances reduce viral replication (in uninfected cells)?

a) Transferrins b) Perforins c) Complement proteins d) Defensins e) Interferons

Anatomy & Physiology

The cerebral hemispheres are connected by a prominent fiber tract called the __________ __________.

Fill in the blank(s) with the appropriate word(s).

Anatomy & Physiology

Synovial membrane occurs in pairs with a parietal and visceral layer

Indicate whether the statement is true or false

Anatomy & Physiology

Hypothalamic centers regulate nervous and endocrine system activities by

A) acting as an endocrine organ, releasing ADH and oxytocin. B) direct neural control over endocrine cells. C) secreting regulatory hormones to control pituitary gland activities. D) All of the answers are correct. E) None of the answers are correct.

Anatomy & Physiology