PHYSIOLOGY CHAPTER 1 EXAM
QUESTIONS AND ANSWERS 100%
CORRECT!
Anatomy - ANSWERscience of body structures and the relationships among them
Physiology - ANSWERscience of how body functions-how the body works
How many levels of structural organization? - ANSWER6
How many body systems? - ANSWER11
Chemical level - ANSWERatoms>molecules(DNA)
Cellular level - ANSWERSmallest structural/functional units of organisms and the
smallest living units in the body ex. nerve, muscle, epithelial
Tissue level - ANSWERgroups of cells & materials surrounding them working
together for a particular function
4 basic types:
, 1. epithelial
2. connective
3. muscular
4. nervous
Epithelial Tissue - ANSWERcovers body surfaces, lines inside of organs, forms
glands
Connective tissue - ANSWERsupport, connects, and protects organs
Muscular Tissue - ANSWERgenerates a force through contraction and relexation
Nervous Tissue - ANSWERTransmit electrical impulses
Organ level - ANSWER(paragraphs) diff types of tissues are joined together to make
organs= structures composed of 2 or more diff types of tissues; have specific
functions and usually recognizable shapes ex) stomach, skin, heart, lungs
System level - ANSWERconsists of related organs with a common function
**sometimes an organ can be a part of more than 1 system
muscular system - ANSWERFunction: participates in body movements such as
walking, maintains posture, produces heat
components: skeletal muscle tissue
Nervous system - ANSWERFunction: generates action potentials (nerve impulses) to
regulate body activities, detects changes in body's internal and external
environments, RAPID COMMUNICATION
components: brain, spinal cord, nerves, and special sense organs such as eyes and
ears
endocrine system
(wire-less) - ANSWERFunction: releases hormones (chemical messengers
transported in blood from endocrine gland or tissue to target organ)