bio kahoot muscle

Question 1

The epimysium covers

Answer 1

the muscle

Question 2

Which muscles have a single nucleus

Answer 2

Cardiac and smooth

Question 3

A single motor neuron and all of the muscle fibers it innervates

Answer 3

motor unit

Question 4

Order from most to least complex

Answer 4

Muscle, fascicle, muscle fiber, myofibril

Question 5

The smallest unit of muscle structure

Answer 5

sacromere

Question 6

Calcium binds to

Answer 6

troponin

Question 7

Sustained contraction that lacks even partial relaxation between stimuli

Answer 7

Tetanus

Question 8

Order steps of muscle contraction

Answer 8

Nerve action travels down motor neuron and release ach
Ach binds to receptors so sodium channels open causing depolarization
T tubules trigger sarcoplasmic reticulum to release calcium
Calcium binds to troponin, removing tropomyosin from actin binding sites

Question 9

What is released into the NMJ to stop muscle contraction

Answer 9

Acetylcholinesterase

Question 10

Characteristics of oxidative glycolytic fibers

Answer 10

Pink, walking, medium amount of mitochondria

Question 11

Characteristics of fast glycoltic fibers

Answer 11

White, weight lifting, little mitochondria

Question 12

characteristics of slow oxidative fibers

Answer 12

Red, endurance running, give ATP slow

Question 13

Time during which muscle tension increases

Answer 13

contraction period

Question 14

Time lag between when stimulus is applied and when contraction occurs

Answer 14

latent period

Question 15

Time during which muscle tension decreases, and muscle returns to resting state

Answer 15

refactory period

Question 16

Prime mover of elbow flexion

Answer 16

Brachialis

Question 17

Deltoid movements

Answer 17

Flex arm, extend arm, abduct arm

Question 18

Order erector spinae from lateral to medial

Answer 18

Iliocostalis, longissimus, spinalis

Question 19

The external abdominal obliques cause _______ rotation when contracted unilaterally

Answer 19

Contralateral

Question 20

The internal abdominal obliques cause ______ rotation when contracted unilaterally

Answer 20

Ipsilateral

Question 21

The internal intercostals are used for ____ and ____ the ribcage

Answer 21

Expiration, depress

Question 22

Triceps brachii is named for

Answer 22

Having 3 heads

Question 23

Hamstring muscles include

Answer 23

Biceps femoris, semitendinosus, semimembranosus

Question 24

Quadriceps muscles

Answer 24

Prime mover of knee extension, strongest muscles in body

Question 25

Most muscles cross at least one

Answer 25

joint

Question 26

The iliotibial band is a combination of

Answer 26

Gluteus maximus, tensor fasciae latae

Question 27

Wrist flexors from medial to lateral

Answer 27

Flexor carpi ulnaris, palmaris longus, flexor carpi radialis

Question 28

Hand and eye muscles have ____ fibers

Answer 28

Fast oxidative glycolytic

Question 29

Produces backward swing of arm

Answer 29

Latissmus dorsi

Question 30

Dorsiflexes and inverts the foot

Answer 30

Tibialis anterior

Question 31

Prime mover of the shoulder joint

Answer 31

Pectoralis major, latissimus dorsi

Question 32

Orbicularis oculi has a _____ arrangement

Answer 32

Circular

Question 33

Flexes fingers 2-5

Answer 33

Flexor digitorum superficialis

Question 34

Muscle fatigue occurs with

Answer 34

Decreased blood flow, ion imbalances across sarcolemma, accumulation of lactic acid

Question 35

Have the largest diameter

Answer 35

Fast glycolytic