Exam 1: Ch. 1 Flashcards
Anatomy?
Structure
Physiology?
Processes or functions
2 types of anatomy?
Gross/macroscopic and microscopic
3 types of gross/macroscopic anatomy?
Regional, systemic, and surface
What is the Surface type of gross/macroscopic anatomy?
external form and relation to deeper structures as x-ray in anatomic imaging
2 types of microscopic anatomy?
cytology (cellular anatomy) and histology (study of tissues)
2 aspects of physiology?
- dynamic nature of single cells (cell physiology examines processes in cells)
- operations of organ systems (more cells working together) ex. neurophysiology and cardiovascular
2 studies that encompass both anatomy and physiology?
pathology and exercise physiology
6 structural and functional organizations?
chemical, cell, tissue, organ, organ system, organism
homeostasis?
to maintain an internal stable environment
how to maintain homeostasis?
“values of variables fluctuate around the set point to establish a normal range of values”
set point in homeostasis?
ideal normal value o f a variable
2 types of feedback systems?
negative and positive
3 components of feedback systems?
receptor (monitor the value of some variable), control center (establishes the set point), and effector (can change the value of the variable)
feedback system: stimulus?
deviation from the set point; detected by the receptor
feedback system: response?
produced by the effector
ex. of negative feedback system?
higher body temperature -> receptor: skin + hypothalamus -> control center in brain -> effector: sweat glands + blood vessels -> normal temperature
ex. of positive feedback?
Normal ex: childbirth (increasing contractions), blood coagulation
Harmful ex: after hemorrhage, blood pressure drops and the heart’s ability to pump blood decreases
7 types of imaging techniques?
radiography ultrasound (US) computed tomography (CT) dynamic spatial reconstruction (DSR) digital subtraction angiography (DSA) magnetic resonance imaging (MRI) positron emission tomography (PET)
radiography?
1st imaging technique
magnetic waves
shows negative shadows
ultrasound (US)?
sound waves
computed tomography (CT)?
slices of body
based off of radiography
related to DSR
dynamic spatial reconstruction (DSR)?
3-d version of CT using multiple slices
based off of radiography
related to CT scan
digital subtraction angiography (DSA)?
uses dye in blood vessels for comparison