Study sets matching "1 skeletal muscle"

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Study sets matching "1 skeletal muscle"

13 terms
Skeletal muscle 1 (Basics)
Skeletal Muscle Functions
Skeletal muscle composition
Skeletal muscle, Muscle Fiber
Directly or inderectly
1. Motion... 2. Maintain posture... 3. Maintain Temperature ... 4. Sup…
Connective tissue... Blood vessels... Nerves... Skeletal muscle tissue
Each cell in ______ _______ is a single _____ _____
Muscles are ______ or _______ attached to bones
Skeletal Muscle Functions
1. Motion... 2. Maintain posture... 3. Maintain Temperature ... 4. Sup…
Skeletal muscle composition
Connective tissue... Blood vessels... Nerves... Skeletal muscle tissue
8 terms
1) Skeletal muscle reflexes
1) sensory receptors (proprioceptors)…
Monitor the position of our limbs in s…
Integrates the input signal using netw…
Carry the output signal
What components do skeletal muscle reflexes have?
What do proprioceptors do?
What does the CNS do?
What do somatic motor neurons do?
1) sensory receptors (proprioceptors)…
What components do skeletal muscle reflexes have?
Monitor the position of our limbs in s…
What do proprioceptors do?
33 terms
Skeletal Muscle [No.1]
buccinator
orbicularis oris
zygomaticus minor
zygomaticus major
cheek muscle
minor on top
major on bottom
buccinator
cheek muscle
orbicularis oris
117 terms
skeletal muscle 1-117
occipitofrontalis
Orbicularis oris
zygomaticus major
zygomaticus minor
occipitofrontalis
Orbicularis oris
Skeletal Muscle 1 & 2
3 types of muscle
Which types of muscle are striated?
Which types of muscle are voluntary? I…
Hierarchy of muscle structure... - small…
- skeletal... - cardiac... - smooth
- skeletal... - cardiac
Voluntary: skeletal... Involuntary: cardiac, smooth
1. sarcomere... 2. myofibril... 3. muscle fiber... 4. muscle fasciculu…
3 types of muscle
- skeletal... - cardiac... - smooth
Which types of muscle are striated?
- skeletal... - cardiac
33 terms
Skeletal Muscle Lesson 1
Function of Muscles
Organ. Why?
Fascia
Fascia can form...
Movement, generates force, cells convert chemical energy to e…
It is composed of skeletal; muscle tissue, nervous tissue, bl…
A CT covering that surrounds each muscle
Tendons or aponeuroses
Function of Muscles
Movement, generates force, cells convert chemical energy to e…
Organ. Why?
It is composed of skeletal; muscle tissue, nervous tissue, bl…
26 terms
1-Skeletal & Smooth Muscle
Functions of skeletal muscle
Characteristics of Skeletal muscle
Myeloblasts
Muscle cell structure
Maintain posture, produce body movements, protect & support b…
"EEECC"... Excitability, Elasticity, Extensibility, Conductivity…
Precursors to muscle cells
Sarcolemma: muscle membrane ... Endomysium: surrounds the muscle…
Functions of skeletal muscle
Maintain posture, produce body movements, protect & support b…
Characteristics of Skeletal muscle
"EEECC"... Excitability, Elasticity, Extensibility, Conductivity…
36 terms
1. Skeletal muscle
Myocytes
Characteristics of cardiac muscle
Components of intercalated discs (card…
Characteristics of smooth muscle
Muscle cells
- Cells are 10-20 um in diameter, 50-100 um in length... - Cells…
- Fascia adherens are anchoring sites for actin, and connect…
- Long, thin fibres, no striation... - Cells are 2-10 um in diam…
Myocytes
Muscle cells
Characteristics of cardiac muscle
- Cells are 10-20 um in diameter, 50-100 um in length... - Cells…
Skeletal Muscle lecture 1
Skeletal muscle tissue
Cardiac muscle tissue
Skeletal muscle tissue
Cardiac muscle tissue
What kind of tissue is this?
What kind of tissue is this?
What kind of tissue?
What kind of tissue?
Skeletal muscle tissue
What kind of tissue is this?
Cardiac muscle tissue
What kind of tissue is this?
11 terms
Skeletal Muscle 1
Muscle Function
Muscle Functions
Functional Characteristics of Muscle T…
Skeletal Muscle Tissue
Skeletal muscles are responsible for all locomotion... Cardiac m…
Producing movement... Maintaining posture... Stabilising joints... Gen…
Excitability or irritability - the ability to receive and res…
Packaged in skeletal muscles that attach to and cover the bon…
Muscle Function
Skeletal muscles are responsible for all locomotion... Cardiac m…
Muscle Functions
Producing movement... Maintaining posture... Stabilising joints... Gen…
10 terms
skeletal muscle vocab 1
muscle fibers
Skeletal Muscle Fibers
Striated Muscle
Voluntary Muscle
Elongated muscle cells and smooth muscle
Cells that are packaged into skeletal muscles
Skeletal muscle, which has obvious stripes
Muscle type to be subject to conscious control
muscle fibers
Elongated muscle cells and smooth muscle
Skeletal Muscle Fibers
Cells that are packaged into skeletal muscles
45 terms
skeletal Muscle 1
skeletal muscle
Cardiac Muscle
Smooth Muscle
Tendon
Cylindrical, very long. Striated. NOT branched, MULTI-Nucleat…
Complex, short. Striated, Branched, NOT Multi-nucleated. Auto…
Spindle shaped, short. NOT Striated, NOT Branched, NOT Multin…
skeletal muscle
Cylindrical, very long. Striated. NOT branched, MULTI-Nucleat…
Cardiac Muscle
Complex, short. Striated, Branched, NOT Multi-nucleated. Auto…
17 terms
Muscle (skeletal) 1
Muscle is classified as
Defining skeletal muscle charecteristics
Sarcolemma
Sarcoplasma
skeletal (movement), smooth (transport) and cardiac (heart)
multinucleated, contains many mitochondria, transverse tubule…
Plasma membrane
Cytolplasm
Muscle is classified as
skeletal (movement), smooth (transport) and cardiac (heart)
Defining skeletal muscle charecteristics
multinucleated, contains many mitochondria, transverse tubule…
47 terms
Skeletal Muscle Tissue 1
Muscle Tissue
Skeletal Muscle Tissue
Cardiac Muscle Tissue
Smooth Muscle Tissue
- one of the 4 primary tissue types ... - specialized for contra…
- voluntary ... - moves the body by pulling on bones of skeleton
- involuntary ... - found only in the heart... - propels blood
- involuntary ... - found in walls of hollow organs ... - moves flu…
Muscle Tissue
- one of the 4 primary tissue types ... - specialized for contra…
Skeletal Muscle Tissue
- voluntary ... - moves the body by pulling on bones of skeleton
32 terms
Skeletal Muscle #1
Characteristics of Skeletal Muscle
Excitability
Conductivity
Contractility
-Excitability ... -Conductivity ... -Contractility... -Extensibility…
respond to chemical signals released from nerve cells
propagate an electrical signal
shorten and generate force
Characteristics of Skeletal Muscle
-Excitability ... -Conductivity ... -Contractility... -Extensibility…
Excitability
respond to chemical signals released from nerve cells
25 terms
Skeletal Muscle 1
Buccinator
Orbicularis Oris
Orbicularis Oculi
Epicranius (occipitofrontalis)- fronta…
Origin: Alveolar processes of maxilla and mandible... Insertion:…
Origin:Maxilla and mandible; muscles around the mouth... Inserti…
Origin: Frontal and maxillary bones... Insertion: Encircles orbi…
Origin: Epicranial aponeurosis... Insertion: Skin of the eyebrow…
Buccinator
Origin: Alveolar processes of maxilla and mandible... Insertion:…
Orbicularis Oris
Origin:Maxilla and mandible; muscles around the mouth... Inserti…
57 terms
Week 1 skeletal muscle
Sliding Filament model of muscle contr…
ATP, Myosin
Myofibril
Sarcomere
Inside the muscle, there are protein filaments (thin and thic…
In the sliding filament theory, __________ is bound and hydro…
Single skeletal muscle cell
The structural subunit of a myofibril in a striated muscle; e…
Sliding Filament model of muscle contr…
Inside the muscle, there are protein filaments (thin and thic…
ATP, Myosin
In the sliding filament theory, __________ is bound and hydro…
18 terms
skeletal muscle physiology 1
nerve muscle relationship
motor unit
neuromuscular junction
what happens at the synaptic cleft
Skeletal muscle has to have nerve stimulus to contract.Damage…
o all muscle fibers one motor neuron innervates... ♣ large motor…
- the synapse between a motor neuron and a skeletal muscle
o Motor neuron releases ACh into the synaptic cleft this is E…
nerve muscle relationship
Skeletal muscle has to have nerve stimulus to contract.Damage…
motor unit
o all muscle fibers one motor neuron innervates... ♣ large motor…
1 Skeletal Muscle and Contraction
What are the shared characteristics of…
What are the main functions of skeleta…
What are unique structural characteris…
What is the deepest layer of skeletal…
Cells are excitable (respond to stimuli - nervous system)... Co…
Movement by pulling on bones... Maintain posture and body positi…
Long cells (muscle fibers)... Multinucleate cells... Striated appea…
Endomysium - surrounds a single muscle fiber
What are the shared characteristics of…
Cells are excitable (respond to stimuli - nervous system)... Co…
What are the main functions of skeleta…
Movement by pulling on bones... Maintain posture and body positi…
76 terms
Skeletal Muscle 1
Myosin
Myosin Heavy Chains
Tropomyosin is pulled away from the ac…
Muscle fibers
Which is the smallest structure?
Which structural protein of skeletal muscle also acts as an e…
What happens when calcium binds troponin?
Because of their shape, muscle cells are also known as ______…
Myosin
Which is the smallest structure?
Myosin Heavy Chains
Which structural protein of skeletal muscle also acts as an e…
Skeletal Muscle Vocab 1
Muscle Fibers
Skeletal Muscle Fibers
Striated Muscle
Voluntary Muscle
Elongated muscle cells (skeletal and smooth)
Cells that are packaged into skeletal muscles
Skeletal muscle, which has obvious stripes
Muscle type to be subject to conscious control
Muscle Fibers
Elongated muscle cells (skeletal and smooth)
Skeletal Muscle Fibers
Cells that are packaged into skeletal muscles
Skeletal Muscle Tissue 1
Contractility
Excitability
Motor unit
all or none law
The ability of a muscle to shorten
the ability of a muscle to respond to a stimulus
one motor neuron and the muscle fiber/cell that it innervates
Individual muscle fibers contract as hard as they can or ther…
Contractility
The ability of a muscle to shorten
Excitability
the ability of a muscle to respond to a stimulus
Skeletal Muscle Vocab 1
Muscle Fibers
Skeletal muscle fibers
Striated muscles
Voluntary muscle
muscle cells
packaged into the organs called skeletal muscles that attach…
muscle consisting of cross-striated muscle fibers; includes c…
muscle under control of the will; skeletal muscle
Muscle Fibers
muscle cells
Skeletal muscle fibers
packaged into the organs called skeletal muscles that attach…
54 terms
Skeletal Muscle 1
2um
Somatic
Autonomic
Myogenic
What is the distance between bands on striations?
What nervous system is voluntary muscle under control of?
What nervous system is involuntary muscle under control of?
What is the name given for the type of intrinsic muscle activ…
2um
What is the distance between bands on striations?
Somatic
What nervous system is voluntary muscle under control of?
Skeletal Muscle #1
functions of sm
properties of sm
composition of sm
fascia
body movement, body posture, respiration, body heat.
contractility, excitability, extensibility, elasticity.
skeletal muscle cells, blood vessels, nerves, and connective…
outermost sheet of connective tissue, or the epimysium.
functions of sm
body movement, body posture, respiration, body heat.
properties of sm
contractility, excitability, extensibility, elasticity.
Skeletal Muscle 1 - Muscle Contraction
What does the "Excitation coupling con…
What is the Neuromuscular junction?
What is the excitatory post synaptic p…
Where do the commands for voluntary mo…
Excitation: The action potential being generated in the muscl…
A synapse between a nerve and a muscle (Most nerves travel fr…
Otherwise referred to as the end plate potential, the respons…
Within the brain, APs are conveyed to skeletal muscle via mot…
What does the "Excitation coupling con…
Excitation: The action potential being generated in the muscl…
What is the Neuromuscular junction?
A synapse between a nerve and a muscle (Most nerves travel fr…
30 terms
12.1 The Cells of Skeletal Muscle
Muscle fibers
They are long multinucleated cells wit…
Sarcolemma
Sarcoplasm
What are skeletal muscle cells called?
What does a skeletal muscle fiber look like?
What is the plasma membrane of a muscle fiber called?
What is the cytoplasm of a muscle fiber called?
Muscle fibers
What are skeletal muscle cells called?
They are long multinucleated cells wit…
What does a skeletal muscle fiber look like?
Skeletal Muscle 1
What are the 2 types of striated muscle
what are the 5 sites in which smooth m…
what are the 3 levels of skeletal musc…
which levels of skeletal muscle organi…
skeletal... cardiac
vascular... intestinal... glands... uterus... bladder
muscle fascicles... muscle fibers... myofibrils
Muscle fibers
What are the 2 types of striated muscle
skeletal... cardiac
what are the 5 sites in which smooth m…
vascular... intestinal... glands... uterus... bladder
Skeletal Muscle Contraction #1
Name the innervation of Skeletal Muscl…
Describe the electrical stimulation fo…
How do Skeletal Muscles form?
Does Skeletal Muscle require an enzyme…
Skeletal: Somatic NS... Cardiac: Autonomic NS... Smooth: Autonomic NS
Skeletal: isolated from neighboring cells... Cardiac: Connected…
Stem Cell to Myoblast to Myotube to Muscle Fiber
Yes - integrin
Name the innervation of Skeletal Muscl…
Skeletal: Somatic NS... Cardiac: Autonomic NS... Smooth: Autonomic NS
Describe the electrical stimulation fo…
Skeletal: isolated from neighboring cells... Cardiac: Connected…
Uni 1 - 1. Skeletal Muscle
motor unit
skeletal muscle input
cardiac muscle input
smooth muscle input
a single motor neuron and the muscle fibers it innervates
controlled by somatic NS
has intrinsic pacemaker capability, receives modulatory input…
from ANS
motor unit
a single motor neuron and the muscle fibers it innervates
skeletal muscle input
controlled by somatic NS
Skeletal Muscle Part 1
Muscles are responsible for...
muscle cell =
Shape of muscle fiber
Skeletal Muscle Characteristics (4)
all types of body movement
muscle fiber
long, cylindrical
- Tendons... - Multinucleate... - Striated... - Voluntary
Muscles are responsible for...
all types of body movement
muscle cell =
muscle fiber
48 terms
Act. 1- Anatomy Review of Skeletal Muscle Tissue
cardiac and smooth muscle cells
Smooth muscle cells
skeletal muscle cells
Skeletal muscle cells
What type of muscle cell is under involuntary control?
What type of muscle cell is pictured below?
What type of muscle cell is under voluntary control?
What type of muscle cell is pictured below?
cardiac and smooth muscle cells
What type of muscle cell is under involuntary control?
Smooth muscle cells
What type of muscle cell is pictured below?
36 terms
Chapter 1: Skeletal Muscle
Organization
Myofibers
Myofibrils
Intermediate Filaments
muscle-epimysium... fascicle-perimysium... fiber- endomysium
Fiber length:... -determines excursion (how much a muscle can sh…
-multiple fibrils within a fiber... -string of sarcomeres... -inter…
-not contractile, hold myofibrils attached to sarcolemma... -dys…
Organization
muscle-epimysium... fascicle-perimysium... fiber- endomysium
Myofibers
Fiber length:... -determines excursion (how much a muscle can sh…
37 terms
Skeletal Muscle Part 1
Epimysium
Perimysium
Endomysium
Sarcolemma
Surrounds the entire muscle, consist of many bundles (fascicu…
Surrounds the Fasciculi, consist of individual muscle cells (…
Surrounds the muscle fiber (separates it from neighboring fib…
Outside layer of muscle fiber, Conducts action potential
Epimysium
Surrounds the entire muscle, consist of many bundles (fascicu…
Perimysium
Surrounds the Fasciculi, consist of individual muscle cells (…
6 terms
Chapter 1: Skeletal Muscle
Purposes of skeletal muscle
Connective Tissue
Epimisyum
Perimisyum
Primary: Movement. Heat Production, Posture
What is often injured
Divides skeletal muscle from another (Fascia)
Separates bundles of fibers from another
Purposes of skeletal muscle
Primary: Movement. Heat Production, Posture
Connective Tissue
What is often injured
112 terms
Exam 1: Skeletal Muscle
function of skeletal muscle
contractile proteins of skeletal muscle
muscle cell (myocytes)
myofibril
posture... locomotion... respiration... thermogenesis
actin and myosin
long, tubular, multinucleated cells composed of myofibrils
rod-like units that contain the contractile elements of myocy…
function of skeletal muscle
posture... locomotion... respiration... thermogenesis
contractile proteins of skeletal muscle
actin and myosin
8 terms
* CONTRACTIONS OF SKELETAL MUSCLE - 1 *
Sliding Filament Model of Contraction…
1
2
3
-Muscle stimulated by nerve... -Thick and thin myofilaments slid…
Nerve impulse carried from brain/spinal cord to muscle by axo…
Axon meets muscle fiber at neuromuscular junction (myoneural…
Axon releases neurotransmitter = acetylcholine, which binds t…
Sliding Filament Model of Contraction…
-Muscle stimulated by nerve... -Thick and thin myofilaments slid…
1
Nerve impulse carried from brain/spinal cord to muscle by axo…
57 terms
Unit 1- Skeletal Muscle
Excitation-contraction coupling
Steps of excitation-contraction
myofibrils consist of...
myofilaments... -what composed of and wha…
-for skeletal muscle contraction to occur an electrical stimu…
1. action potential at neuromuscular junction... 2. calcium (ins…
-consist of a bundle of parallel microfilaments called myofil…
-two types of myofilaments: myosin and actin (make up 50-50%…
Excitation-contraction coupling
-for skeletal muscle contraction to occur an electrical stimu…
Steps of excitation-contraction
1. action potential at neuromuscular junction... 2. calcium (ins…
skeletal muscle relaxants 1
what are the 2 categories of skeletal…
what are the two types of neuromuscula…
when Ach binds to the _ receptors on t…
How are the postjunctional receptors d…
neuromuscular blocking agents... skeletal muscle spasmolytic drugs
depolarizing... non-depolarizing... To provide skeletal muscle rel…
nicotinic cholinergic (Nm); potassium, sodium; contract; AchE…
They are glycoproteins with 5 subunits- 2 alpha, and 1 each o…
what are the 2 categories of skeletal…
neuromuscular blocking agents... skeletal muscle spasmolytic drugs
what are the two types of neuromuscula…
depolarizing... non-depolarizing... To provide skeletal muscle rel…
Skeletal muscle 1
What is the function of skeletal muscle?
What kind of control is applied to ske…
What does muscle movement result in?
What enzyme breaks down Ach?
Movement, heat and posture
Voluntary
Activation of a motor neuron and release of the neurotransmit…
Acetylcholinesterase
What is the function of skeletal muscle?
Movement, heat and posture
What kind of control is applied to ske…
Voluntary
Skeletal Muscle 1
What is the size of a skeletal muscle…
What takes up 80% of fiber volume?
Average resting sarcomere length in ma…
What provides lateral support to myofi…
25-100 microns
Myofibrils
2.5 microns
Desmin - intermediate filament
What is the size of a skeletal muscle…
25-100 microns
What takes up 80% of fiber volume?
Myofibrils
39 terms
Skeletal Muscle Physiology 1
How is a myotube formed?
What 4 transcription factors determine…
What are the structures of the transcr…
How do the transcription factor functi…
single cell myoblasts fuse to form multinucleated myotubes
MyoD... myogenin... myf-5... MRF-4/herculin/myf-6
they are nuclear phosphoproteins... contain a basic helix loop h…
as dimers... bind to DNA 10x better as a heterodimer with one bl…
How is a myotube formed?
single cell myoblasts fuse to form multinucleated myotubes
What 4 transcription factors determine…
MyoD... myogenin... myf-5... MRF-4/herculin/myf-6
Skeletal Muscle #1
Each muscle fiber (myofiber/cell) is a…
Fibers contain many (> 1000) _____ whi…
Muscle cell precursors---(differentiat…
Within a muscle, a number of myofibers…
Multinucleated... Myoblast
Myofibrils... sarcomeres
myoblasts (mononucleated)... myotube (multinucleated)... muscle fib…
Fascicle... Muscle
Each muscle fiber (myofiber/cell) is a…
Multinucleated... Myoblast
Fibers contain many (> 1000) _____ whi…
Myofibrils... sarcomeres
24 terms
Skeletal Muscle 1
Muscle Tissue Types
Skeletal Muscle Tissue Function
Skeletal Muscle Structure
Skeletal Muscle Development
Skeletal(voluntary)... Cardiac(involuntary)... Smooth(involuntary)
Guard entrances and exits... Maintain body temperature... Provide n…
Skeletal muscle fibers (contract)... Connective tissue (harness…
From myoblasts that fuse together... Mature are large and have s…
Muscle Tissue Types
Skeletal(voluntary)... Cardiac(involuntary)... Smooth(involuntary)
Skeletal Muscle Tissue Function
Guard entrances and exits... Maintain body temperature... Provide n…
10 terms
Muscle Skeletal Quiz 1
GOUT
OSTEOPOROSIS
OSTEOMYELITIS
ANKYLOSING (AKS)
metabolic disease resulting from an accumulation of uric acid…
disorder that results in reduction in the mass of bone per un…
local or generalized infection of bone and bone marrow; can o…
chronic, progressive disorder of the sacroiliac and hip joint…
GOUT
metabolic disease resulting from an accumulation of uric acid…
OSTEOPOROSIS
disorder that results in reduction in the mass of bone per un…
Skeletal Muscle Phys 1
bHLH
E-box
excitation-contraction coupling
myogenic
basic helix-loop-helix ... structural region on MyoD that is req…
binding site in DNA for myogenic factors... present in most musc…
physiological process of converting an electrical stimulus to…
muscle
bHLH
basic helix-loop-helix ... structural region on MyoD that is req…
E-box
binding site in DNA for myogenic factors... present in most musc…
Skeletal muscle 1
Sarcolemma
Sarcoplasmic reticulum
Muscle fiber
Twitch
plasma membrane
Endoplasmic Reticulum
cell
single stimulus, muscle quickly contracts and relaxes, (may h…
Sarcolemma
plasma membrane
Sarcoplasmic reticulum
Endoplasmic Reticulum
1 Skeletal Muscle Relaxants
Spasticity
Only receptor type on the end plate
Hemicholinium
CHT
Increased muscle stiffness
Nicotinic receptor
Depletes the synthesis of ACh by not allowing choline to be r…
Choline transferase... - Reuptake system for choline
Spasticity
Increased muscle stiffness
Only receptor type on the end plate
Nicotinic receptor
63 terms
Skeletal Muscle
Detect tension within the muscle fiber…
Detects muscle stretch and causes musc…
A muscle is surrounded by epimysium.…
It is a collection of muscle fibers su…
What is the function of golgi tendon organs?... Where are they…
What is the function of the muscle spindle?
A muscle is surrounded by what?... What is the next smaller part…
What is a fascicle?... What surrounded it?
Detect tension within the muscle fiber…
What is the function of golgi tendon organs?... Where are they…
Detects muscle stretch and causes musc…
What is the function of the muscle spindle?
36 terms
skeletal muscle lecture 1
What is a fascicle
what is the first thing you see in mus…
What are muscle cells made out of
What is the thick filament
a bundle of muscle cells or fibers
muscle fascicles.
thick and thin filaments
myosin
What is a fascicle
a bundle of muscle cells or fibers
what is the first thing you see in mus…
muscle fascicles.
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