Study sets matching "chapter 4 smooth and cardiac muscle"

Study sets
Classes
Users

Study sets matching "chapter 4 smooth and cardiac muscle"

27 terms
Chapter 12: smooth and cardiac muscle
ways to catogorize different types of…
phasic smooth muscle
tonic smooth muscle
sphineters
1. location... 2. contraction pattern... 3. communication with neig…
muscle that undergoes periodical contraction and relaxation c…
muscle that always has some level of muscle tone
to close, relax when necessary
ways to catogorize different types of…
1. location... 2. contraction pattern... 3. communication with neig…
phasic smooth muscle
muscle that undergoes periodical contraction and relaxation c…
33 terms
4. Cardiac and Smooth Muscle
What is the tunica intima?
What are the components of the tunica…
What are the components of the tunica…
What are the 3 layers of the heart?
A layer of endothelium cells in a blood vessel facing the lum…
1. smooth muscle cells producing elastic, reticular, and coll…
1. Loose connective tissue... 2. Blood vessels (vasa vasorum)... 3.…
1. endocardium... 2. myocardium... 3. epicardium
What is the tunica intima?
A layer of endothelium cells in a blood vessel facing the lum…
What are the components of the tunica…
1. smooth muscle cells producing elastic, reticular, and coll…
15 terms
4. Cardiac and smooth muscle
The structure of cardiac muscle
How does cardiac muscle work?
What are the characteristics of cardia…
The force of contraction of cardiac mu…
Cells are 10-20uM in diameter, and 50-100um long.... Cardiac myo…
An action potential, generated in the SA node, travels throug…
Cardiac action potentials differ in shape in different region…
The force of contraction depends on the degree of stretch of…
The structure of cardiac muscle
Cells are 10-20uM in diameter, and 50-100um long.... Cardiac myo…
How does cardiac muscle work?
An action potential, generated in the SA node, travels throug…
58 terms
Cardiac Muscle & Smooth Muscle
Skeletal Muscle
Cardiac Muscle
Smooth Muscle
Cardiac Muscle
What type of muscle is this?
What type of muscle is this?
What type of muscle is this?
-have 1-2 nuclei centrally located... -are striated and use slid…
Skeletal Muscle
What type of muscle is this?
Cardiac Muscle
What type of muscle is this?
33 terms
Exam 4 Cardiac and Smooth Muscle
Cardiac, Smooth
Cardiac
Cardiac, Skeletal
Smooth
What two types of muscles are involuntary?
These muscles are only found in the heart.
What two types of muscles are striated?
What type of muscle is nonstriated?
Cardiac, Smooth
What two types of muscles are involuntary?
Cardiac
These muscles are only found in the heart.
22 terms
chapter 10- smooth and cardiac muscle
excitability... conduction
(visceral) single-unit smooth muscles
gap junctions
small arteries, veins, intestines, ute…
smooth muscle is classified into 2 groups based on ______ of…
SOCIAL muscles because the membranes are capable to propagati…
muscle fibers are connected by ___ _____ so electrical signal…
most common single-unit smooth muscles are found here
excitability... conduction
smooth muscle is classified into 2 groups based on ______ of…
(visceral) single-unit smooth muscles
SOCIAL muscles because the membranes are capable to propagati…
19 terms
Skeletal, Cardiac, and Smooth Muscle
What does skeletal muscle look like?
What does cardiac muscle look like?
What does smooth muscle look like?
Where is skeletal muscle located?
long cylindrical fiber with many peripherally located nuclei,…
Branched cylindrical fiber with one centrally located nucleus…
Fiber thickest in middle, tapered at each end, with one centr…
Attached by tendons to bone
What does skeletal muscle look like?
long cylindrical fiber with many peripherally located nuclei,…
What does cardiac muscle look like?
Branched cylindrical fiber with one centrally located nucleus…
Skeletal, Smooth, Cardiac Muscles
skeletal
skeletal
striations
Smooth muscle
What type of muscle?
What type of muscle?
What are the stripes?
What muscle?
skeletal
What type of muscle?
skeletal
What type of muscle?
25 terms
Cardiac Muscle and Smooth Muscle
What does cardiac muscle make up?
How are skeletal muscle and cardiac mu…
How are cardiac muscle and skeletal mu…
Intercalated disks
The walls of the heart's chambers
Thick and thin filaments arranged into sarcomeres, sliding fi…
Cardiac cells are smaller, connect to each other and connect…
Mechanical connection, electrical connection via gap junction…
What does cardiac muscle make up?
The walls of the heart's chambers
How are skeletal muscle and cardiac mu…
Thick and thin filaments arranged into sarcomeres, sliding fi…
Chapter 12: cardiac and smooth muscles
cardiac and smooth muscles are
cardiac and smooth muscles are regulat…
like skeletal muscle, contraction is d…
cardiac muscle is
-involuntary
autonomic nervous system
myosin/actin cross bridges
started
cardiac and smooth muscles are
-involuntary
cardiac and smooth muscles are regulat…
autonomic nervous system
63 terms
Cardiac and Smooth muscle
Cardiac vs skeletal muscle
Cardiac muscle acts as a mechanical an…
A similarity between cardiac and skele…
Syncytium
- shorter... - branched... - Intercalated disks... - desmosomes... - Gap…
Syncytium
striations of actin and myosin
a multinucleated cell that can result from multiple cell fusi…
Cardiac vs skeletal muscle
- shorter... - branched... - Intercalated disks... - desmosomes... - Gap…
Cardiac muscle acts as a mechanical an…
Syncytium
Chapter 10 Cardiac and Smooth Muscle
Cardiac Muscles are similar to skeleta…
How does Cardiac muscle's structure di…
Intercalated discs contain
Gap Junction
myofibrils and sacromeres
Their cells are short, branched, and connect to each other
Gap Junctions and Interconnections
tiny pores that allow for rapid spread of electrical signals…
Cardiac Muscles are similar to skeleta…
myofibrils and sacromeres
How does Cardiac muscle's structure di…
Their cells are short, branched, and connect to each other
27 terms
Cardiac and Smooth Muscle
where are cardiomyocytes attached to e…
fibers of cardiomyocytes may be _____…
the nuclei of cardiomyocytes are ____…
where are organelles organized for car…
intercalated discs
branched
single and central
at the poles of nucleus (perinuclear space).... Exception: mitoc…
where are cardiomyocytes attached to e…
intercalated discs
fibers of cardiomyocytes may be _____…
branched
27 terms
Chapter 9: Cardiac and Smooth Muscle
Is smooth muscle striated?
What are the cells of smooth muscle?
Caveolae
What do smooth muscle have instead of…
No, fibers are smaller than those in skeletal muscle
Spindle shaped, single, central nucelus
Indentations in sarcolemma; may act like T tubules
Dense bodies, non-contractile intermediate filaments
Is smooth muscle striated?
No, fibers are smaller than those in skeletal muscle
What are the cells of smooth muscle?
Spindle shaped, single, central nucelus
14 terms
Cardiac and Smooth Muscle
cardiac muscle
intercalated disc
transverse
longitudinal
--single, central nucleus ... --branched muscle fibers attache…
where adjacent cardiac fibers meet/attach (dark stained line)
Cardiac Muscle ... Intercalated disc's Intercellular Junctions
Cardiac Muscle ... Intercalated disc's Intercellular Junctions :…
cardiac muscle
--single, central nucleus ... --branched muscle fibers attache…
intercalated disc
where adjacent cardiac fibers meet/attach (dark stained line)
14 terms
Cardiac and Smooth Muscle
cardiac muscle
intercalated disc
transverse
longitudinal
--single, central nucleus ... --branched muscle fibers attache…
where adjacent cardiac fibers meet/attach (dark stained line)
Cardiac Muscle ... Intercalated disc's Intercellular Junctions :…
Cardiac Muscle ... Intercalated disc's Intercellular Junctions :…
cardiac muscle
--single, central nucleus ... --branched muscle fibers attache…
intercalated disc
where adjacent cardiac fibers meet/attach (dark stained line)
Cardiac and Smooth Muscle
cardiac muscle
intercalated disc
transverse
longitudinal
--single, central nucleus ... --branched muscle fibers attache…
where adjacent cardiac fibers meet/attach (dark stained line)
Cardiac Muscle ... Intercalated disc's Intercellular Junctions :…
Cardiac Muscle ... Intercalated disc's Intercellular Junctions :…
cardiac muscle
--single, central nucleus ... --branched muscle fibers attache…
intercalated disc
where adjacent cardiac fibers meet/attach (dark stained line)
Cardiac and Smooth Muscle
Cardiac Muscle: Structure
Smooth Muscle: Structure
Tonic Smooth Muscle
Phasic Smooth Muscle
1. striated, involuntary muscle ... 2. arranged in sarcomere - a…
multi unit: a single smooth muscle cell with axon... single unit…
tonic smooth muscle - remains contracted for most of the time…
phasic smooth muscle - spends a fair amount of time in a rela…
Cardiac Muscle: Structure
1. striated, involuntary muscle ... 2. arranged in sarcomere - a…
Smooth Muscle: Structure
multi unit: a single smooth muscle cell with axon... single unit…
24 terms
Skeletal, Cardiac and smooth muscle
Skeletal muscle location
skeletal muscle structure
Skeletal muscle function
Type of control - skeletal muscle
attached to bones or skin
cross striated, multinucleated, unbranched long cylindrical s…
Posture, movement, heat production
voluntary, each cell has one synapse (neuromuscular junction)…
Skeletal muscle location
attached to bones or skin
skeletal muscle structure
cross striated, multinucleated, unbranched long cylindrical s…
19 terms
Smooth and Cardiac Muscle
Smooth Muscle
Properties of Smooth Muscle
Smooth Muscle Contraction
Steps of Excitation-Contraction Coupling
Found in internal organs, blood vessels... Under involuntary con…
Spindle-shaped... Small, approximately 1/10 skeletal... No striatio…
Diagonal organization of actin/myosin (gets wider and shorter…
1-Opening of calcium channels in plasma membrane... -Voltage... -…
Smooth Muscle
Found in internal organs, blood vessels... Under involuntary con…
Properties of Smooth Muscle
Spindle-shaped... Small, approximately 1/10 skeletal... No striatio…
18 terms
Cardiac, Smooth & Cardiac Muscles
multi
uni
uni
striated
skeletal muscle nucleus
cardiac muscle nucleus
smooth muscle nucleus
skeletal muscle striations
multi
skeletal muscle nucleus
uni
cardiac muscle nucleus
33 terms
Cardiac and Smooth muscle
They have gap junctions which transmit…
Connexins
By increasing the amount of Ca2+ influx.
From the extracellular space.
How do cardiac muscle cells share transmission of impulse bet…
What are gap junction made of?
How can cardiac cells increase the force of contraction?
The sarcoplasmic reticulum is small in cardiac muscle. Where…
They have gap junctions which transmit…
How do cardiac muscle cells share transmission of impulse bet…
Connexins
What are gap junction made of?
30 terms
Cardiac muscle and smooth muscle
Thick filament is made up of
Thin filament is made up of
Intercalated disk
Regular beating of the heart
myosin tail and myosin heads
Actin, Troponin and Tropomyosin twisted in a long chain
These structures branch and connect cardiac cells. They conta…
myogenic in origin
Thick filament is made up of
myosin tail and myosin heads
Thin filament is made up of
Actin, Troponin and Tropomyosin twisted in a long chain
52 terms
Cardiac and Smooth Muscle
Single Skeletal Muscle Cell consists o…
what is the membrane of a single skele…
T tubules
myofibrils
a single skeletal muscle fiber consists of multiple myofibril…
sarcolemma
invaginations of the sarcolemma that allows the AP to go into…
bundles covered by sarcoplasmic reticulum. have special relat…
Single Skeletal Muscle Cell consists o…
a single skeletal muscle fiber consists of multiple myofibril…
what is the membrane of a single skele…
sarcolemma
skeletal muscle/smooth muscle/cardiac muscle slides
striations
nuclei
fasciculi
perimysium
a bands are dark i bands are light
dots
with in the enclosed circles
white area around the fasciculi
striations
a bands are dark i bands are light
nuclei
dots
Cardiac Muscle and Smooth Muscle
Striated
Myocotes are short, thick uninucleate…
Electric gap junctions allow each myoc…
Mechanical junctions keep myocytes fro…
Cardiac muscle
Cardiac muscle
Cardiac muscle
Cardiac muscle
Striated
Cardiac muscle
Myocotes are short, thick uninucleate…
Cardiac muscle
Cardiac and Smooth Muscle
Describe the ultrastructure of cardiac…
Describe the ionic basis of cardiac ac…
describe the action potential in Atria…
describe action potential in the SA an…
10um diameter, 100um long... contain intercalated disks: ... -Mech…
action potential initiated in SA node, then passes quickly th…
FAST RESPONSE: ... stage 0 - due to Na+ entry causing depolaris…
SLOW RESPONSE: ... 0- entry of ca2+ ... 2- ca2+ channels close. k…
Describe the ultrastructure of cardiac…
10um diameter, 100um long... contain intercalated disks: ... -Mech…
Describe the ionic basis of cardiac ac…
action potential initiated in SA node, then passes quickly th…
31 terms
Cardiac, smooth and skeletal muscle
Skeletal muscle
Cardiac muscle
Smooth muscle
Cardiac muscle fibres
- attached to the skeleton ... - contraction for force, movement…
- heart muscle ... - arranged to form four chambers ... - contracts…
- found in walls of blood vessels, airways and gut... - controls…
- small and with a single, central nucleus... - striated and the…
Skeletal muscle
- attached to the skeleton ... - contraction for force, movement…
Cardiac muscle
- heart muscle ... - arranged to form four chambers ... - contracts…
37 terms
Skeletal, Cardiac, and Smooth Muscle
Regardless of muscle type, ______ trig…
Increase in intracellular calcium can…
Skeletal muscle organization
Cardiac muscle organization
Rise in intracellular calcium... - may come from intra- and e…
Skeletal - neural only... Cardiac and Smooth - Neural and chemi…
muscle -> fascicle -> muscle fiber -> myofibril -> myofilamen…
Striated, branched.... All muscles of the heart beat as one in a…
Regardless of muscle type, ______ trig…
Rise in intracellular calcium... - may come from intra- and e…
Increase in intracellular calcium can…
Skeletal - neural only... Cardiac and Smooth - Neural and chemi…
21 terms
Cardiac and Smooth Muscle
Characteristics of Cardiac Muscle
Intercalated Disks
Cardiac Muscle (Picture)
Contraction of cardiac muscle
Smaller than skeletal muscle, single central nucleus, striate…
Sections of cardiac muscle that allows the cell to trasnmit e…
Involuntary, sequence contraction (one contracts others contr…
Characteristics of Cardiac Muscle
Smaller than skeletal muscle, single central nucleus, striate…
Intercalated Disks
Sections of cardiac muscle that allows the cell to trasnmit e…
14 terms
Skeletal, smooth, and cardiac muscle
voluntary
involuntary
has striations
aerobic respiration
skeletal
smooth and cardiac
skeletal and cardiac
cardiac
voluntary
skeletal
involuntary
smooth and cardiac
79 terms
Cardiac and Smooth Muscle
sarcolemma
sarcoplasm
sarcoplasmic reticulum
cardiac muscle cell
plasma membrane of a muscle cell
cytoplasm of a muscle cell
ER of a muscle cell
-15um in diameter... -cross-striated... -covered by a sheath of end…
sarcolemma
plasma membrane of a muscle cell
sarcoplasm
cytoplasm of a muscle cell
4.3 Skeletal, Smooth, and Cardiac Muscle
Skeletal also called
Skeletal single or multinucleated?
Skeletal striated due to
Skeletal produce Heat?
Striated (striped) or voluntary
Multinucleated
Organized arrangement of contractile units called sarcomeres
Yes, when constantly contracting (exercising) and when cold (…
Skeletal also called
Striated (striped) or voluntary
Skeletal single or multinucleated?
Multinucleated
Smooth Muscle and Cardiac Muscle
What are the mechanical junctions pres…
What is the function of fascia adheren…
What are the electrical junctions pres…
What is the function of a gap junction?
Fascia adherens and desmosomes
They help keep the cells from pulling apart
Gap junctions
To allow an action potential to spread quickly
What are the mechanical junctions pres…
Fascia adherens and desmosomes
What is the function of fascia adheren…
They help keep the cells from pulling apart
17 terms
Skeletal, Cardiac and smooth muscle
Skeletal muscle location
skeletal muscle structure
Skeletal muscle function
Type of control - skeletal muscle
attached to bones or skin
cross striated, multinucleated, unbranched long cylindrical s…
Posture, movement, heat production
voluntary, each cell has one synapse (neuromuscular junction)…
Skeletal muscle location
attached to bones or skin
skeletal muscle structure
cross striated, multinucleated, unbranched long cylindrical s…
Cardiac muscle and smooth muscle
Where is cardiac muscle found?
What is cardiac muscle controlled by?
What are desmosomes junctions?
What are gap junctions?
In the heart
The involuntary and or the autonomic nervous system
They keep cells from being pulled apart when they contract
they allow action potential to travel rapidly from cell to ce…
Where is cardiac muscle found?
In the heart
What is cardiac muscle controlled by?
The involuntary and or the autonomic nervous system
cardiac muscle and smooth muscle
in comparison to muscle cells dependen…
smooth muscles form
smooth muscle is present in
which is longest muscle type and which…
more mitochondria, more myoglobin, more capillaries, more oxi…
the walls of most hollow internal organs... non striated and inv…
almost all organ systems
skeletal is longest... smooth is shortest
in comparison to muscle cells dependen…
more mitochondria, more myoglobin, more capillaries, more oxi…
smooth muscles form
the walls of most hollow internal organs... non striated and inv…
Cardiac Muscle & Smooth Muscle
Cardiac
Smooth
Both
Stimulation of smooth muscle
- has auto-rhythmic ... - highly fatigue resistant... -uses aerobic…
- gap junction present... - no T tubules Ca 2+ comes from ECP... -n…
- involuntary ... - nerves stimulate tissues... - no T tubules Ca 2…
(single-unit smooth muscle) ... - autonomic nervous system... - axo…
Cardiac
- has auto-rhythmic ... - highly fatigue resistant... -uses aerobic…
Smooth
- gap junction present... - no T tubules Ca 2+ comes from ECP... -n…
27 terms
Physio- Cardiac and Smooth Muscle
Which muscle has intercalated discs?
Which muscle is branched discs?
Which muscle has gap junctions?
Which muscle displays syncitia?
Cardiac
Cardiac
Cardiac
Cardiac
Which muscle has intercalated discs?
Cardiac
Which muscle is branched discs?
Cardiac
19 terms
Chapter 9: Muscle tissue - smooth, cardiac and development
peristalsis
caveoli
smooth muscle tissue does not have
filaments arranged diagonally causing…
alternating contraction and relaxation in hollow organs to sq…
pouchlike infoldings in plasma membranes
sacromeres
corkscrew
peristalsis
alternating contraction and relaxation in hollow organs to sq…
caveoli
pouchlike infoldings in plasma membranes
Smooth muscle & cardiac muscle
Location of smooth muscle
Greatest variety of functions for smoo…
Smooth muscle is the
smooth muscle is
walls of hollow organs and tubes, interior of the eye, walls…
-moving urine through urinary tract... -food movement through di…
most widely distributed type of muscle
involuntary
Location of smooth muscle
walls of hollow organs and tubes, interior of the eye, walls…
Greatest variety of functions for smoo…
-moving urine through urinary tract... -food movement through di…
52 terms
Skeletal, Smooth and Cardiac Muscle
which type of muscle is found in the w…
what are two major differences in the…
which type(s) of muscles can we volunt…
which type of muscle has the smallest…
smooth muscle
smooth muscle does not have troponin and has only a very smal…
skeletal muscle
smooth muscle, cardiac is intermediate, then skeletal is larg…
which type of muscle is found in the w…
smooth muscle
what are two major differences in the…
smooth muscle does not have troponin and has only a very smal…
14 terms
9. Smooth & Cardiac Muscle
Structure of Smooth muscle
Smooth Muscle Contraction
Smooth vs Skeletal
Latch State
1. spindle shape cell... 2. shorter than skeletal... 3. single nucl…
1. Sarcoplasmic reticulum + extracellular fluid ↑ Ca+2... 2. ↑ C…
Smooth ... - two sources of Ca2+ (sarcoplasmic reticulum and ext…
- Cross bridge is dephosphorylated while still attached to ac…
Structure of Smooth muscle
1. spindle shape cell... 2. shorter than skeletal... 3. single nucl…
Smooth Muscle Contraction
1. Sarcoplasmic reticulum + extracellular fluid ↑ Ca+2... 2. ↑ C…
22 terms
Skeletal, Cardiac, and Smooth Muscle
What does skeletal muscle look like?
What does cardiac muscle look like?
What does smooth muscle look like?
Where is skeletal muscle located?
long cylindrical fiber with many peripherally located nuclei,…
Branched cylindrical fiber with one centrally located nucleus…
Fiber thickest in middle, tapered at each end, with one centr…
Attached by tendons to bone
What does skeletal muscle look like?
long cylindrical fiber with many peripherally located nuclei,…
What does cardiac muscle look like?
Branched cylindrical fiber with one centrally located nucleus…
17 terms
Cardiac & Smooth Muscle
Skeletal
Cardiac
Smooth
Features of Cardiac Muscle
Muscle on attached to skeleton ... Contraction for force, moveme…
Heart muscle , 4 chambers, contracts to pump blood around vas…
Wall of blood vessels, airways & gut ... controls diameter
Small ... Single central nucleus ... STRIATED - same molecular mech…
Skeletal
Muscle on attached to skeleton ... Contraction for force, moveme…
Cardiac
Heart muscle , 4 chambers, contracts to pump blood around vas…
Skeletal, Smooth, Cardiac Muscle
Sacromere
Z line
A band
I band
-Part of myofibril... -From z line to z line
Where actins attach
Myosin and actin overlap
only actin
Sacromere
-Part of myofibril... -From z line to z line
Z line
Where actins attach
15 terms
Human Physiology Chapter 13-Smooth and Cardiac Muscle
Smooth muscle fibers
Structural makeup of smooth muscle fib…
How is cross-bridge formation controll…
What are the two sources of cytosolic…
Made up of spindle-shaped fibers that are much smaller than i…
Thick and thin filaments just like before, but this time ther…
Ca2+ binds to calmodulin, which is able to activate MLCK, a C…
1) A sarcoplasmic reticulum (that lacks t-tubules) that lies…
Smooth muscle fibers
Made up of spindle-shaped fibers that are much smaller than i…
Structural makeup of smooth muscle fib…
Thick and thin filaments just like before, but this time ther…
Skeletal, Cardiac and Smooth Muscle
Of what are myofilaments composed?
Of what are myofibrils composed?
Of what are myofibers composed? What s…
What is a myocyte?
The thin filaments are made of actin and the thick filaments…
These are many myofilaments surrounded by sarcoplasmic reticu…
These are made of many myofibrils. They are surrounded by end…
This is just another name for a myofiber/muscle cell
Of what are myofilaments composed?
The thin filaments are made of actin and the thick filaments…
Of what are myofibrils composed?
These are many myofilaments surrounded by sarcoplasmic reticu…
Smooth Muscle/ Cardiac Muscle
Describe smooth muscle cells.
Smooth muscle where fibers occur separ…
Smooth muscle that occurs in sheets &…
How is smooth muscle like skeletal mus…
Elongated, tapered ends, lack situations, undeveloped SR, no…
Multi unit... Blood vessels & iris of the eye
Visceral
Myosin to actin binding is mostly the same
Describe smooth muscle cells.
Elongated, tapered ends, lack situations, undeveloped SR, no…
Smooth muscle where fibers occur separ…
Multi unit... Blood vessels & iris of the eye
28 terms
Smooth and Cardiac Muscle
Cardiac Muscle
Labelled Sacromere
Intercalated discs
Cardiac Myocytes form...
Involuntary... Myogenic... Long thin Myofibrils that cntract as sac…
Connect adjoining cadiac myocytes together... Contain Desmosome…
electrical/functional syncytium
Cardiac Muscle
Involuntary... Myogenic... Long thin Myofibrils that cntract as sac…
Labelled Sacromere
1 of 10