Muscular

Laughing muscle

Frowning muscle

Strongest muscle in the human body

Called as pouting muscle

Narrows and elongates the tongue

Flattens and widens the tongue

Alternative term for hamstring

RICE

Event wherein the kneecap glides as the knee bends or straightens

Compartment of the legs

Set of muscle abducts the thigh

Four sites of IM

Attachment of a muscle's tendon to the stationary bone

Attachment of muscle's other tendon to the movable bone

Major movement produced in the thorax during quiet breathing is accomplished here

Name one rotator cuff muscle

Contraction of a fiber muscle in response to stimulus

Temporary state of reduced work capacity

Respiration that produces ATP, CO2, Water

Produces ATP and lactate

Stimulation are so rapid that no relaxation occurs

Three phases of muscle twitching

Responsible for keeping the back and legs straight, the head in upright position from bulging

Resulting periodic spontaneous contraction of smooth muscle

Enlargement of muscle fibers due to exercise

Type of skeletal muscle fiber that is used for the maintenance of posture, walking, endurance activities

It happens when the amount of tension produced by the muscle is constant during contraction, but the length of the muscle decreases

TRUE or FALSE
Magnum means largest
True False

TRUE or FALSE
Pectoralis minor is considered as the swimmer's muscle
True False

TRUE or FALSE
SPINOUS ERECTAE is the one who's responsible for keeping the back straight and the body erect
True False

It is a muscle that is attached to the bones

Skeletal muscle is ____% of body weight and is a ________ muscle

It's only one action is to shorten; shortening generates pulling force

Capacity pf muscle to respond to an electrical stimulus

muscle can be stretched beyond its normal resting length

recoil/spring back to its original resting length

It is a connective tissue sheath that surround skeletal muscle; muscular fascia

Visible bundles in skeletal muscles

Loose connective tissue that surrounds muscle fasciculi

Muscle cells inside fasciculi

Cell membrane of the muscle fiber

Tubelike imaginations; connects sarcolemma to the sarcoplasmic reticulum

has high concentration of Ca which play a MAJOR role in muscle CONTRACTION

cytoplasm inside each muscle fiber

threadlike structures that extend from one end of the muscle fiber to the other

2 major kind of protein fibers

it is a highly ordered arrangement, repeating units of actin and myosin myofilament

it joined end to end to form the MYOFIBRILS

THIN myofilament

have attachment sites for myosin myofilament

molecules attached at the specific intervals along actin myofilaments

have binding sites for Ca2+

Located along the groove between twisted strands of actin myofilaments subunits

It covers/blocks myosin myofilaments binding sites on actin myofilaments

THICK myofilaments

this can bind to attachment sides on actin myofilament

this can bend and straighten during contraction; can also break down energy

basic structural and functional unit of skeletal muscle

it is also the smallest portion of skeletal muscle that is capable for contraction

NEGATIVELY charged INSIDE of cell membrane

occurs because there is an uneven distribution of ions across the cell membrane

K is higher INSIDE the cell membran; Na is higher OUTSIDE the cell

INSIDE the cell membrane is POSITIVE

Na movement stop; K movement out of the cell increases Na movement stop; K movement out of the cell increases

NEGATIVEly charged INSIDE again; change back to RMP

rapid depolarization and repolarization of the cell membrane

In muscle fibers, action potential = ?

Specialized nerve cells that stimulates muscle to contract

Junction with a muscle fiber

cell to cell junction between a nerve cell and another nerve cell

1 motor neuron, + all skeletal muscle fibers =?

Enlarged axon terminal

space between presynaptic terminal and the muscle fiber membrane

Cell membrane or sarcolemma

small vesicles inside presynaptic terminal that contains Acetylcholine

It is a neurotransmitter that is released by a presynaptic nerve cell that stimulates postsynaptic cell

It is an enzyme that breaks acetylcholine released between atoms and muscle fibers

sliding of actin myofilaments past myosin myofilaments during contraction

In this method, H zone and I bands shorten during contraction

Exposed attachment sites on the actin myofilaments bind to the heads of myosin myofilaments

cross bridges are not released causing the muscles to become rigid; ATP not available

TRUE OR FALSE
Myofilaments do not change length during muscle contraction
True False

TRUE OR FALSE
Actin myofilaments moves away from each other
True False

TRUE OR FALSE
Sarcomere shorten as Z disks move toward each other
True False

TRUE OR FALSE
H zone, I band, A band NARROWS
True False

It is a contraction of a muscle fiber in responds to a stimulus

it is a time between the application of a stimulus and the beginning of contraction; LATENT phase

phase/time during which the muscle contracts

time during a muscle relaxes

sustained contraction that occurs when the frequency of stimulation is so rapid that no relaxation occurs

this requires O2 and it breaks down glucose to produce ATP, CO2, heat