BIOL 251 ANATOMY AND
PHYSIOLOGY EXAM 1 TISSUES WITH
100% CORRECT ANSWERS 2025/2026
tissues correct answers >> any grouping of cells that are
similar in structure and carry out a similar or common function in
the body
pros and cons of tissues correct answers >> pros: cell
specialization allows body to carry out complicated functions
cons: destruction of one cell type can be catastrophic
4 primary tissue types correct answers >> nervous, muscle,
epithelial, connective
nervous tissue correct answers >> regulates and controls
body functions, composed of brain, spinal cord, nerves
nervous tissue type: neurons correct answers >> capable of
transmitting electrical impulses through entire body, can respond
to various stimuli
nervous tissue type : supporting cells correct answers >>
nonconducting cells
function is to protect, insulate, support neurons
,muscle tissue correct answers >> innervated, well
vascularized.
actin and myosin correct answers >> found in muscle tissue,
microfilaments that interact, allowing muscles to contract/move
3 types of muscle tissue correct answers >> skeletal,
cardiac, smooth
skeletal muscle correct answers >>
cardiac muscle correct answers >>
cardiac muscle correct answers >> involuntary, striated,
found only in walls of heart
epithelial correct answers >>
Epithelial tissue : covering epithelium correct answers >>
outer layer of skin, urogenital, digestive, and respiratory systems.
- covers walls/organs of closed body cavity
epithelial tissue : glandular epithelium correct answers >>
makes up the glands of the body
characteristics of epithelial tissue correct answers >> apical
basal polarity : apical surface "expose side" and basal surface
"attaches to connective tissue"
, apical surface of epithelial tissue correct answers >>
basal surface correct answers >> attaches to connective
tissue
- has attached basal lamina (filters what can/cant enter epithelial
layer)
basal lamina correct answers >> filters what can/cant enter
epithelial layer
types of junctions between epithelial cells correct answers >>
tight junctions and desmosomes
basement membrane in epithelial tissue (support) correct
answers >> lies between epithelial layer and connective tissue
function: reinforces epithelial sheet to resist stretching/tearing/
defines epithelial boundary
basement membrane layers correct answers >> basal lamina
and reticular lamina (contains fibers belonging to connective
tissues)
avascular correct answers >> has no blood supply, receives
nourishment through diffusion
innervated correct answers >> supplied with nerve fibers
PHYSIOLOGY EXAM 1 TISSUES WITH
100% CORRECT ANSWERS 2025/2026
tissues correct answers >> any grouping of cells that are
similar in structure and carry out a similar or common function in
the body
pros and cons of tissues correct answers >> pros: cell
specialization allows body to carry out complicated functions
cons: destruction of one cell type can be catastrophic
4 primary tissue types correct answers >> nervous, muscle,
epithelial, connective
nervous tissue correct answers >> regulates and controls
body functions, composed of brain, spinal cord, nerves
nervous tissue type: neurons correct answers >> capable of
transmitting electrical impulses through entire body, can respond
to various stimuli
nervous tissue type : supporting cells correct answers >>
nonconducting cells
function is to protect, insulate, support neurons
,muscle tissue correct answers >> innervated, well
vascularized.
actin and myosin correct answers >> found in muscle tissue,
microfilaments that interact, allowing muscles to contract/move
3 types of muscle tissue correct answers >> skeletal,
cardiac, smooth
skeletal muscle correct answers >>
cardiac muscle correct answers >>
cardiac muscle correct answers >> involuntary, striated,
found only in walls of heart
epithelial correct answers >>
Epithelial tissue : covering epithelium correct answers >>
outer layer of skin, urogenital, digestive, and respiratory systems.
- covers walls/organs of closed body cavity
epithelial tissue : glandular epithelium correct answers >>
makes up the glands of the body
characteristics of epithelial tissue correct answers >> apical
basal polarity : apical surface "expose side" and basal surface
"attaches to connective tissue"
, apical surface of epithelial tissue correct answers >>
basal surface correct answers >> attaches to connective
tissue
- has attached basal lamina (filters what can/cant enter epithelial
layer)
basal lamina correct answers >> filters what can/cant enter
epithelial layer
types of junctions between epithelial cells correct answers >>
tight junctions and desmosomes
basement membrane in epithelial tissue (support) correct
answers >> lies between epithelial layer and connective tissue
function: reinforces epithelial sheet to resist stretching/tearing/
defines epithelial boundary
basement membrane layers correct answers >> basal lamina
and reticular lamina (contains fibers belonging to connective
tissues)
avascular correct answers >> has no blood supply, receives
nourishment through diffusion
innervated correct answers >> supplied with nerve fibers
