MT CH6 Normal Structures And Function Flashcards
(30 cards)
Acetylcholine
neurotransmitter stimulates contraction of skeletal muscles?
Pronounced as as-eh-til-KO-lene.
What are the two contractile proteins in muscle cells?
- actin
- myosin
Actin is pronounced as AK-tin.
Agonist
muscle that carries out a movement?
Pronounced as AG-on-Ist.
Antagonist
muscle that opposes an agonist
Pronounced as an-TAG-o-nist.
What type of muscle makes up the heart wall?
cardiac muscle
Pronounced as KAR-de-ak.
Fascia
fibrous sheath of connective tissue that covers a muscle
Pronounced as FASH-e-ah.
Fascicle
fibrous sheath of connective tissue that covers a muscle
Pronounced as FAS-ih-k.
In a movement, what is the point where a muscle is attached to a moving part of the skeleton?
insertion
Pronounced as in-SER-shun.
Muscle?
an organ that produces movement by contracting
Pronounced as MUS-el.
Neuromuscular junction
the point of contact between a branch of a motor neuron and a muscle
Pronounced as nu-ro-MUS-ku-lar JUNK-shun.
In a given movement, what is the point where a muscle is attached to a stable part of the skeleton?
origin
Pronounced as OR-ih-jin.
What is the main muscle involved in a given movement called?
prime mover
What type of muscle is responsible for voluntary movements and is attached to bones?
skeletal muscle
Pronounced as SKEL-eh-tal.
What is the term for involuntary muscle that makes up the wall of hollow organs?
smooth muscle
Synergistic
muscle that assists a prime mover to produce a given movement
Pronounced as SIN-er-jist.
Tendon?
the fibrous band of connective tissue that attaches a muscle to a bone
Pronounced as TEN-dun.
Tonus
state of steady, partial muscle contraction that maintains firmness
Pronounced as TO-nus.
Fill in the blank: A muscle that assists a prime mover is called a _______.
[synergist]
Fill in the blank: A fibrous band of connective tissue that attaches a muscle to a bone is called a _______.
[tendon]
Fill in the blank: The condition of muscle firmness due to steady partial contraction is called _______.
[tonus]
Define the root ‘muscul’.
[muscle]
Define the root ‘fascial’.
[fascia]
Define the root ‘kinetic’.
[movement]
Define the root ‘tendin’.
[tendon]