Lesson 5 - TISSUES Flashcards
EXAMINES THE ORGAN SYSTEMS
SYSTEMATIC ANATOMY
EXAMINES CELLS AND THEIR STRUCTURES
CYTOLOGY
SIGN VS SYMPTOM
- *SIGNS** ARE OBJECTIVE, QUANTITIVE, MEASURABLE (TEMP, SWELLING)
- *SYMPTOMS** ARE SUBJECTIVE, QUALITATIVE, NOT MEASURABLE, (PAIN, DIZZINESS)
collection of specialized cells and cell products that perform a specific, limited function
tissues
study of tissues
histology
structures with discrete structural and functional properties
tissues
tissues in combination form ____
organs
how many groups can organs be grouped into
11
how many organ systems are needed for survival
10
the reproductive system is not required for an organism’s survival
true
4 types of tissues
epithelial, connective, muscle, neural
covers the exposed surface
ex: skin
Epithelial tissue
lines internal passageways
ex: digestive tract
epithelial tissue
forms glands
ex: sweat glands, endocrine glands
epithelial tissue
fills internal spaces
ex: adipose
connective tissue
stores energy
ex: adipose
connective tissue
supports other tissues
ex: bone
connective tissue
transports materials
ex: blood
connective tissue
specialized for contraction
muscle tissue
skeletal muscle: mostly attached to the skeleton
muscle tissue
cardiac muscle: found in the heart
muscle tissue
smooth muscle: found in the walls of hollow organs, blood vessels
muscle tissues
uses ATP to give energy of microtubules to provide movement
cilia
extension of plasma membrane, giving more surface area, diffusion is easier
microvilli
includes neurons and neuroglia
neural/nervous tissue
neurons carry electrical signals from one part of the body to another
neural/nervous tissue
neuroglia (glia) are the support cells of the nervous system
neural/nervous tissue
layers of cells covering internal and external surfaces
epithelial
lines digestive, respiratory, reproductive, and urinary tracts
internal
surface of the skin
ex: epidermis
external
structures that produce secretions
glands
includes exocrine and endocrine glands
glands
FUNCTIONS OF EPITHELIAL TISSUE
provide physical protection, control permeability, provide sensation, produce specialized secretions
can be regulated and modified in response to stimuli
ex: hormones can affect transport across epithelia, physical labor forms calluses on skin)
functions of epithelial tissue - control permeability
can be regulated and modified in response to stimuli
ex: hormones can affect transport across epithelia, physical labor forms calluses on skin)
control permeability - functions of epithelial tissue
epithelium specialized to perform a specific sensory function
ex: smell, taste, sight, hearing, equillibrium
neuroepithelium
neuroepithelium
provide sensation - functions of epithelial tissue
glandular epithelium
produce specialized secretions - functions of epithelial tissue
individual epithelial cells may be specialized to:
- move fluids over the epithelium (protection and lubrication) ex: cilia
- move fluids through the epithelium (controls permeability) ex: microvilli
- produce secretions (protection and act as messengers)
in ____ ____, epithelial cells pr fluids produced from epithelial lining are removed and checked for abnormal cellular changes
(ex: pap test, amniocentesis)
exfoliative cytology
