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Study sets matching "muscle contraction chapter 7"

9 terms
3. Chapter 7 Muscle Fiber Contraction
muscle fiber contraction
TENSION
TENSION depends on
Muscle Tone
No change in filament length, Filaments slide past each other…
-when muscle cells contract and produce an active force ... -a m…
-the frequency of muscle fiber stimulation... -the number of mus…
resting tension in the muscle
muscle fiber contraction
No change in filament length, Filaments slide past each other…
TENSION
-when muscle cells contract and produce an active force ... -a m…
58 terms
chapter 7 muscle contraction
what are unique features of a muscle c…
what is a muscle fiber
what is the plasma membrane of a muscl…
what are the striations of a muscle fi…
multinucleated... postmitotic... contractile
muscle cell
sarcolemma... sarcoplasm
overlap of thick and thin filaments... dark area= A band... lighter…
what are unique features of a muscle c…
multinucleated... postmitotic... contractile
what is a muscle fiber
muscle cell
30 terms
Chapter 7 Muscles and Muscle Contraction Practice Set
twitch
tetanus
insertion
origin
a single contraction in response to a brief threshold stimula…
A smooth sustained muscle contraction, such as occurs in skel…
The attachment of a muscle tendon to a moveable bone or the e…
The attachment of a muscle tendon to a stationary bone or the…
twitch
a single contraction in response to a brief threshold stimula…
tetanus
A smooth sustained muscle contraction, such as occurs in skel…
13 terms
2. Chapter 7 The nervous system and skeletal muscle contraction
nervous system
neuromuscular junction
motor neuron
axon terminal
controls skeletal muscle contraction
point of contact between a motor neuron and a skeletal muscle…
1 .controls each muscle fiber ... 2. a neuron that sends an impu…
branches of the motor neuron which becomes part of the neurom…
nervous system
controls skeletal muscle contraction
neuromuscular junction
point of contact between a motor neuron and a skeletal muscle…
10 terms
Chapter 7 Muscle Quiz (muscle contraction)
step 1
step 2
step 3
step 4
When the nerve impulse reaches the axon terminals, a neurotra…
Ach attaches to receptors which makes the membrane more perme…
Na+ diffuses in and K+ rushes out, generating an action poten…
AP travels down T-tubules, which causes Ca2+ to be released f…
step 1
When the nerve impulse reaches the axon terminals, a neurotra…
step 2
Ach attaches to receptors which makes the membrane more perme…
32 terms
Chapter 7.2 (Physiology of Muscle Contraction)
axon tip, motor neuron, acetylocholine…
receptors, sarcolema, muscle impulse
over, sarcolemma, muscle fiber, transv…
calcium ions, sarcoplasmic reticulum
Contraction of a muscle fiber is initiated when the ___ ___ o…
Acetylocholine binds to ______ of the _____ causing the forma…
The muscle impulse spreads _____ the _____ and is carried int…
The muscle impulse in the muscle fiber triggers the release o…
axon tip, motor neuron, acetylocholine…
Contraction of a muscle fiber is initiated when the ___ ___ o…
receptors, sarcolema, muscle impulse
Acetylocholine binds to ______ of the _____ causing the forma…
20 terms
Chapter 7: Nerve Supply and Muscle Contraction
motor neuron
neuromuscular junction
motor unit
pre-synaptic membrane
nerve cells that send action potentials to the muscle fiber
a synapse between a motor neuron and a muscle fiber
a motor neuron and all muscle fibers it innervates
the cell membrane of an axon terminal that faces the receivin…
motor neuron
nerve cells that send action potentials to the muscle fiber
neuromuscular junction
a synapse between a motor neuron and a muscle fiber
31 terms
Chapter 7 Bio 55 Muscle Anatomy and Contraction
Types of muscle (3)
Smooth muscle
Cardiac muscle
Skeletal muscle
Smooth muscle, cardiac muscle, and skeletal muscle
Makes up walls of hollow internal organs including mucous tra…
Makes up walls of heart
Attach to and move bones, skin and fasciae, and other muscles…
Types of muscle (3)
Smooth muscle, cardiac muscle, and skeletal muscle
Smooth muscle
Makes up walls of hollow internal organs including mucous tra…
78 terms
Chapter 7 - Muscle System & Contractions
What are the three types of muscle?
Which two muscles have an autonomic ne…
which muscle is slower but has prolong…
which muscle does not easily fatigue?
1. skeletal ... 2. cardiac ... 3. smooth
1. smooth muscle 2. cardiac muscle
smooth muscle
smooth muscle
What are the three types of muscle?
1. skeletal ... 2. cardiac ... 3. smooth
Which two muscles have an autonomic ne…
1. smooth muscle 2. cardiac muscle
5 terms
Chapter 7: Steps of Muscle Contraction Part 1
ACh released by axon terminal at NMJ a…
resulting permeability change for Na+…
Ca+ is released from SR which increase…
Ca+ bind to troponin, moving tropomyos…
Steps of muscle contraction 1
Steps of muscle contraction 2
Steps of muscle contraction 3
Steps of muscle contraction 4
ACh released by axon terminal at NMJ a…
Steps of muscle contraction 1
resulting permeability change for Na+…
Steps of muscle contraction 2
47 terms
Chapter 7 - Exctitation of Skeleltal Muscle: Neuromuscular Transmission and Excitation-Contraction Coupling
Skeletal muscle fibers are innervated by
The nerve fiber forms a complex of ___…
The entire nerve fiber, branching nerv…
The entire motor end plate is covered…
Large, myelinated nerve fibers that originate from large moto…
Branching nerve terminals.
Motor End Plate
Schwan Cells
Skeletal muscle fibers are innervated by
Large, myelinated nerve fibers that originate from large moto…
The nerve fiber forms a complex of ___…
Branching nerve terminals.
16 terms
Chapter 7 (BICH 410) - Protein Function: Myoglobin & Hemoglobin, Muscle Contraction, and Antibodies
Myoglobin (Mb)
Hemoglobin (Hb)
Neuroglobin
Cytoglobin
Small, intracellular protein in vertebrate muscle
Intracellular protein that transports oxygen and gives blood…
Present mainly in brain, retina, and endocrine tissues. Preve…
Occurs in most tissues. Prevents reperfusion injury
Myoglobin (Mb)
Small, intracellular protein in vertebrate muscle
Hemoglobin (Hb)
Intracellular protein that transports oxygen and gives blood…
9 terms
ch.7- energy sources for muscle contraction
ATP
creatine phosphate
creatinine
glycogen
direct energy source for muscle contraction; lasts for a few…
is broken down for the resynthesis for ATP; converted to crea…
nitrogenous waste product, excreted by the kidneys
most abundant; stored in muscles, lasts longer than ATP; brok…
ATP
direct energy source for muscle contraction; lasts for a few…
creatine phosphate
is broken down for the resynthesis for ATP; converted to crea…
15 terms
Chapter 7 excitation of skeletal muscle: neuromuscular transmission and excitation-contraction coupling
Skeletal muscle innervated by:
Neuromuscular junction
Motor end plate
Synaptic cleft
Large myelinated nerve fibers originating in anterior horn of…
Nerve ending junction at muscle
Complex of branching terminals invaginating on surface of mus…
20-30 nm gap b/w terminal & fiber membrane
Skeletal muscle innervated by:
Large myelinated nerve fibers originating in anterior horn of…
Neuromuscular junction
Nerve ending junction at muscle
78 terms
CHEM 4511 Biochemistry I - Chapter 7: Protein Function: Myoglobin, Hemoglobin, Muscle Contraction, and Antibodies
Myoglobin
Hemoglobin
Heme Group
Oxygenation
- a small protein with relatively simple oxygen-binding behav…
- a tetramer of myoglobin-like polypeptide... - a more complicat…
- has a central Fe(II) atom liganded four N atoms of the poly…
- alters the electronic state of the Fe(II)-heme complex, as…
Myoglobin
- a small protein with relatively simple oxygen-binding behav…
Hemoglobin
- a tetramer of myoglobin-like polypeptide... - a more complicat…
24 terms
Ch 7 Anatomy Muscle Contraction
Functions of Muscular System
epimysium
perimysium
endomysium
produce skeletal movement ... maintain body position and posture…
collagen fibers that surrounds the entire muscle and separate…
divides muscle into compartments containing fascicles; surrou…
surrounds each skeletal muscle fiber and ties adjacent muscle…
Functions of Muscular System
produce skeletal movement ... maintain body position and posture…
epimysium
collagen fibers that surrounds the entire muscle and separate…
6 terms
Muscle contraction - Chapter 10
Step 1
Step 2
Step 3
Step 4
Calcium ion is released from SR
Calcium ion binds to troponin
Myosin cross-bridges bind to the actin thin filament
Myosin head pivots toward the center of the Sarcomere (M line)
Step 1
Calcium ion is released from SR
Step 2
Calcium ion binds to troponin
24 terms
Test 7 muscle contraction
What is the sliding filament theory
1) Sliding filament theory: when the a…
Sliding filament theory: the myosin tw…
Sliding filament theory: myosin releas…
Created by Huxley brothers in 1954 created a theory that expl…
Myosin head bind
Shorten the sacromere
Z line
What is the sliding filament theory
Created by Huxley brothers in 1954 created a theory that expl…
1) Sliding filament theory: when the a…
Myosin head bind
32 terms
Chapter 7 - Capacity to Contract
Requirements for a valid contract
Capacity
Limited capacity
minor
capacity to contract, consensus, legality, possibility of per…
law recognises that person has the legal competence to perfor…
minor, married persons, mental incapacity and insolvent
person below age of 18 and unmarried
Requirements for a valid contract
capacity to contract, consensus, legality, possibility of per…
Capacity
law recognises that person has the legal competence to perfor…
72 terms
chapter 17: muscle contraction
muscular system
general functions
characteristics of skeletal muscle cells
excitability
-is responsible for the moving the framework of the body... -in…
-movement of the body as a whole or movement of its parts... -he…
excitability (irritability) ... contractibility... extensibility
ability to be stimulated
muscular system
-is responsible for the moving the framework of the body... -in…
general functions
-movement of the body as a whole or movement of its parts... -he…
8 terms
Physiology Chapter 7 Excitation of Skeletal Muscle: Neuromuscular Transmission and Excitation-Contraction Coupling
Many compounds, including methacholine…
A group of drugs known as the ________…
neostigmine, physostigmine, and diisop…
in this disease end-plate potentials t…
they are not destroyed by cholinesterase or are destroyed slo…
curariform drugs
inactivate acetylcholinesterase.... Neostigmine and physostigmi…
Myasthenia gravis... autoimmune disease (antibodies for acetylc…
Many compounds, including methacholine…
they are not destroyed by cholinesterase or are destroyed slo…
A group of drugs known as the ________…
curariform drugs
9 terms
Chapter 7 Nervous System (specifically steps to muscle contraction) Test 2A
Action #1
Action #2
Action #3
Action #4
Brain sends the action potential down the nerve
AP travels to the end of the nerve and hits the neurtrosmitters
AP causes ACH to be released to the nerve
Ach diffuses into the muscle
Action #1
Brain sends the action potential down the nerve
Action #2
AP travels to the end of the nerve and hits the neurtrosmitters
17 terms
Chapter 48: Muscle Contraction
Skeletal Muscle Fiber
Tendons
Skeletal Muscle
Myofibril
Mostly voluntary control; contains bundle of fascicles, fasci…
Connect muscle to bone
A muscle that is attached to the bones of the skeleton and pr…
Has actin and myosin; Striated appearance of skeletal muscle-…
Skeletal Muscle Fiber
Mostly voluntary control; contains bundle of fascicles, fasci…
Tendons
Connect muscle to bone
17 terms
Chapter 7 - Contracts
offer
acceptance
valid
void
a proposal by one party to another intended to create a legal…
a second party's unqualified willingness to go along with the…
legally good
having no legal force
offer
a proposal by one party to another intended to create a legal…
acceptance
a second party's unqualified willingness to go along with the…
20 terms
Chapter 7 Contracts
offer
acceptance
genuine agreement
consideration
One of the six elements of a valid contract. It is the propos…
One of the six elements of a valid contract. It is the unqual…
One of the six elements of a valid contract. It is when the o…
One of the six elements of a valid contract. It is the thing…
offer
One of the six elements of a valid contract. It is the propos…
acceptance
One of the six elements of a valid contract. It is the unqual…
111 terms
Chapter 7 Muscles and Joints
striated
smooth muscle
cardiac muscle
muscle fibers
having a striped appearance
also known as Visceral; found in the walls of hollow organs
specialized type of muscle found in the wall of the heart
individual muscle cells
striated
having a striped appearance
smooth muscle
also known as Visceral; found in the walls of hollow organs
22 terms
Anatomy - Chapter 7 - Muscle terms
acetylcholine
3 types of muscle types
abdominal hernia
hernia
a neurotransmitter - carries nerve impulse across synaptic cl…
smooth, cardiac, skeletal
organs protrude through abdominal wall
organ protrude through a weak muscle
acetylcholine
a neurotransmitter - carries nerve impulse across synaptic cl…
3 types of muscle types
smooth, cardiac, skeletal
52 terms
Chapter 7 Contracts and Contract Prep
Unilateral
Bilateral
Express
Implied
One party makes promise
Two party makes promise; each to another
Spoken or written
By action of parties
Unilateral
One party makes promise
Bilateral
Two party makes promise; each to another
19 terms
Contract ; Chapter 7 Contract provision
Antenuptial agreement
Condition
condition concurrent
condition precedent
contract entered into prior to marriage determining parties r…
Fact or even the happening or nonhappening of which creates o…
promise to perform and performance occur simultaneously
fact or event that must occur before an absolute duty to perf…
Antenuptial agreement
contract entered into prior to marriage determining parties r…
Condition
Fact or even the happening or nonhappening of which creates o…
10 terms
Ch 7 excitation of Skeletal Muscle: Neuromuscular Transmission and Excitation-Contraction Coupling
calcium stimulates secreation of acety…
acetylcholine
acetylcholinestrase
impulse conducted through muscle ***
AP spreads over terminal>channels open & ENTRY of calcium ion…
removed rapidly by two means;... 1) acetylcholinestrase (most de…
the enzyme that destroys acetylcholine soon after it is liber…
Transmission of AP along T tubules that penetrate all way thr…
calcium stimulates secreation of acety…
AP spreads over terminal>channels open & ENTRY of calcium ion…
acetylcholine
removed rapidly by two means;... 1) acetylcholinestrase (most de…
7 terms
7 steps of muscle contraction
1
2
3
4
depolarization of the sarcolemma resulting in an end plate po…
depolarization of membrane of t tubule, action potential trav…
depolarization of membrane of the terminal/lateral cisternae…
diffusion of calcium to myofilaments
1
depolarization of the sarcolemma resulting in an end plate po…
2
depolarization of membrane of t tubule, action potential trav…
19 terms
Chapter 7: Vocabulary muscles
arthralgia
atrophy
cardiac muscle
contract/contraction
Pain in the joints; symptom present in many joint diseases.
Wasting away; literally "without development"
Specialized type of muscle that forms the wall of the heart.…
A reduction is size, especially of muscle fibers.
arthralgia
Pain in the joints; symptom present in many joint diseases.
atrophy
Wasting away; literally "without development"
24 terms
Chapter 7 Contract Law Vocabulary
Contract
Capacity
Mutual Consent
Offer
An agreement between two or more competent persons to do or n…
A person must be mentally competent and at least 18 years of…
The agreement of both parties to the terms of the contract, e…
A communication showing the willingness of the offered to be…
Contract
An agreement between two or more competent persons to do or n…
Capacity
A person must be mentally competent and at least 18 years of…
19 terms
Chapter 7 Consumer Law and Contracts
A collection of laws that govern vario…
Element that determines the law that w…
The law requiring that written express…
A guarantee of quality imposed by law…
Uniform Commercial Code
Dominate
Magnuson-Moss Warranty Act
Implied Warranty
A collection of laws that govern vario…
Uniform Commercial Code
Element that determines the law that w…
Dominate
10 terms
Lecture 7: Muscle Contraction
What did scientists in the 50's believ…
What categories can muscles be divided…
Draw the difference between Cardiac, S…
What two filaments make up sacromeres?…
Scientists believed the spiral shortening of proteins was the…
Muscles can be divided into smooth and striated muscles, stri…
Sarcomeres, the contractile unit of a skeletal muscle fiber,…
Actin is a protein that forms the thin filament of the sacrom…
What did scientists in the 50's believ…
Scientists believed the spiral shortening of proteins was the…
What categories can muscles be divided…
Muscles can be divided into smooth and striated muscles, stri…
14 terms
muscle System chapter 7
muscle types
Smooth Muscle
Cardiac Muscle
Skeletal muscle
See page 128
Smooth muscle is located in the walls of hollow internal orga…
Cardiac muscle forms the heart wall. Its fibers are uninuclea…
fibers are cylindrical, multinucleated, and striated. They ma…
muscle types
See page 128
Smooth Muscle
Smooth muscle is located in the walls of hollow internal orga…
46 terms
Chapter 7: Agreement & Consideration in Contracts
Promise... (moral obligations vs. legall…
Promisor
Promisee
Common Law ... governs all contracts exc…
A declaration that binds the person who makes it to do or not…
A person who makes a promise.
A person to whom a promise is made.... The promisee has a right…
UCC... governs contracts for the sale and lease of goods.
Promise... (moral obligations vs. legall…
A declaration that binds the person who makes it to do or not…
Promisor
A person who makes a promise.
24 terms
HAP CHPT 7 Muscle Contraction and Neurons
Sarcomere
Myofibril
Fascicle
Tendon
A single contractile unit of a muscle.
The name given for a bundle of myofilaments (actin and myosin).
A bundle of muscle fibers.
Connects muscle to a bone.
Sarcomere
A single contractile unit of a muscle.
Myofibril
The name given for a bundle of myofilaments (actin and myosin).
21 terms
Contract Law Chapter 7
What constitutes a third party?
What does the word privity mean?
What is privity of contract?
True or false: American law now allows…
not an offeror of offeree but might still have rights or be e…
relationship or connection
a contract cannot confer rights or impose obligations arising…
True
What constitutes a third party?
not an offeror of offeree but might still have rights or be e…
What does the word privity mean?
relationship or connection
7 terms
7 steps muscle contraction
one
two
three
four
nervous message down motor neuron
acetycholine crosses neuromuscular junction
impulse travels through t-tubules of sarcoplasmic reticulum..…
calcium binds to troponin(on actin)
one
nervous message down motor neuron
two
acetycholine crosses neuromuscular junction
20 terms
1. Chapter 7 Skeletal Muscle Fiber Organization
functions of the skeletal muscle (what…
three layers of connective tissue
epimysium
perimysium
1. they help the skeleton move... 2. they help keep or maintain…
1. epimysium... 2. perimysium... 3. endomysium
collage fibers that surrounds the entire muscle
divides the skeletal muscle into compartments or bundles call…
functions of the skeletal muscle (what…
1. they help the skeleton move... 2. they help keep or maintain…
three layers of connective tissue
1. epimysium... 2. perimysium... 3. endomysium
20 terms
Chapter 7 - Consumer Law and Contracts
Uniform Commercial Code (UCC)
firm offer
title
bill of sale
A collection of laws that governs various types of business t…
A merchant's written promise to hold an offer open for the sa…
The right of ownership to goods.
Formal evidence of ownership.
Uniform Commercial Code (UCC)
A collection of laws that governs various types of business t…
firm offer
A merchant's written promise to hold an offer open for the sa…
31 terms
Chapter 7: Contract Provisions
Antenuptial agreement
condition
condition concurrent
condition precedent
contract entered into prior to marriage determining parties'…
fact or event, the happening or nonhappening of which creates…
promise to perform and performance occur simultaneously; each…
fact or event that must occur before an absolute duty to perf…
Antenuptial agreement
contract entered into prior to marriage determining parties'…
condition
fact or event, the happening or nonhappening of which creates…
47 terms
BL Chapter 7: CONTRACTS
Principles of Contract Law example
Contract
Promisee
Injunction
Example that shows that _______ determines which agreements w…
Legally enforcing promise or set of promises.
Has certain legal rights against the person who made the prom…
Court order forcing the promisor (made the promise) to perfor…
Principles of Contract Law example
Example that shows that _______ determines which agreements w…
Contract
Legally enforcing promise or set of promises.
66 terms
Chapter 7 Contract Formation
Genuine assent
Mutual Assent
Offer may be terminated in three ways:
mailbox rule
both parties agree
Underlying requirement that must be met to form an enforceabl…
1) revocation-the offeror revokes the offer prior to acceptan…
determines when a contract is considered to be deemed accepte…
Genuine assent
both parties agree
Mutual Assent
Underlying requirement that must be met to form an enforceabl…
43 terms
Chapter 7: Contract Formation
Genuine Assent
Statute of Frauds
Mutual Assent
Offer
The knowing, voluntary, and mutual approval of the terms of a…
The law governing which contracts must be in writing in order…
For the formation of a valid contract, the broad underlying r…
A promise or commitment to do (or refrain from doing) a speci…
Genuine Assent
The knowing, voluntary, and mutual approval of the terms of a…
Statute of Frauds
The law governing which contracts must be in writing in order…
18 terms
topic 7 - muscle contraction
myosin filaments have...
each myosin head has...
actin filaments have...
in a resting, unstimulated muscle...
globular heads that are hinged so they can more back and forth
a binding site for actin and a binding site for ATP
binding sites for myosin heads (actin-myosin binding sites)
the actin-myosin binding site is blocked by tropomyosin which…
myosin filaments have...
globular heads that are hinged so they can more back and forth
each myosin head has...
a binding site for actin and a binding site for ATP
40 terms
CHAPTER 7 CONTRACT FORMATION
Contract Transaction
Enforceability
Genuine Assent
Performance
A contract is formed when two or more parties reach a mutual…
After the formation requirements are met, the contract is gov…
...
If the contract is properly formed and legally enforceable, P…
Contract Transaction
A contract is formed when two or more parties reach a mutual…
Enforceability
After the formation requirements are met, the contract is gov…
41 terms
Chapter 7 Contracts
Contract
Contractual obligation
Breach of Contract
Executory Contract
A promise made by one person to another to do something or re…
The promise each party makes is called this
A party who does not fulfill the promise made, who defaults i…
When some future contract obligation is yet to be performed.…
Contract
A promise made by one person to another to do something or re…
Contractual obligation
The promise each party makes is called this
9 terms
Chapter 7: Legality in Contracts
Legality
Usury
Surrogacy Contract
Prenuptial Agreement
The condition of conformity with the law
Charging a rate of interest that exceeds rates permitted
Contract in which a woman hosts fertilized egg in her womb
An agreement between 2 independents over terms and agreements…
Legality
The condition of conformity with the law
Usury
Charging a rate of interest that exceeds rates permitted
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