Intro To Anatomy Flashcards
What does Anatomy study?
Study of structure
What does Physiology study?
Study of function
What is Histology?
Study of the microscopic structure of tissues
Define Gross Anatomy
Study of the larger structures of the body
What is Ultra-structure?
Study of the fine structure of cells and organelles
What does Cell Physiology focus on?
Functions of cells
What is Systems Physiology?
Study of the functions of organ systems
What is Molecular Physiology?
Study of the functions of molecules within cells
What is the first step in the classical reductionist approach?
System
What is the role of pacemaker cells?
Generate impulses that control heart rate
Where is the sinoatrial (SA) node located?
In the heart
What effect does phosphorylation of the L-type Ca channel have?
Increases its tendency to open
What neurotransmitter increases heart rate during exercise?
Noradrenaline
What happens to membrane potential in pacemaker cells when stimulated by noradrenaline?
Reaches threshold more quickly
What does the patch-clamp technique measure?
Ca current through individual ion channels
True or False: The increase in heart rate during exercise is primarily due to increased sympathetic nerve activity.
True
What is the link established by functional genomics?
Link between system/organ function and individual genes
What are ‘knockout’ mice used for?
Investigating the function of specific genes
What is an example of a blocker used in treating hypertension?
L-type Ca channel blockers
What does increased circulating adrenaline do?
Increases heart rate
