Chapter 8- Muscular System

Question 0

What is an erg?

Answer 0

Muscle that works with a prime mover to produce a movement

Question 1

What is a calat

Answer 1

Membranous band that connects cardiac muscle cells

Question 2

What is hyper?

Answer 2

: Enlargement of muscle fibers.

Question 3

What is inter?

Answer 3

Membraneous band that connects cardiac muscle cells

Question 4

What is laten?

Answer 4

Time between application of a stimulus and the beginning of a muscle contraction.

Question 5

What is myo?

Answer 5

Contractile structure within a muscle cell

Question 6

What is sacro?

Answer 6

Material (cytoplasm) within a muscle fiber.

Question 7

What is syn?

Answer 7

muscle that works with a prime mover to produce a movement

Question 8

What is tetan?

Answer 8

: Sustained muscular contraction

Question 9

What is troph?

Answer 9

Enlargement of muscle fibers

Question 10

Name the three types of muscles

Answer 10

Skeletal, Smooth & Cardiac

Question 11

Is Skeletal muscle voluntary?

Answer 11

Yes

Question 12

Some identifying features of this muscle are it is present, single nucleus, well developed transverse troubles seperating adjacent cells

Answer 12

Cardiac

Question 13

Is smooth muscle voluntary or involuntary?

Answer 13

Involuntary

Question 14

This muscle’s identifying features are absent; single nucleus lacks transverse tubules

Answer 14

Smooth

Question 15

Is cardiac muscle voluntary or involuntary?

Answer 15

Involuntary

Question 16

This muscle’s characteristics are present, many nuclei; well developed transverse, and a tubule system

Answer 16

Skeletal

Question 17

What is a tendon?

Answer 17

A band of tough, inelastic fibrous tissue that connects a muscle with it’s bony attachment

Question 18

What is a ligament?

Answer 18

A sheet or band of tough fibrous connecting bones or cartiliges at a joint or supporting an organ

Question 19

What is neuromuscular junction?

Answer 19

Connection between a motor neuron and the muscle fiber

Question 20

What’s a sacromere

Answer 20

The segment of a myofibril that extends from one Z line to the next Z line.

Question 21

Is actin thick or thin?

Answer 21

Thin

Question 22

Is myosin thick or thin

Answer 22

Thick

Question 23

When minimal strength is required to cause a contraction… __________

Answer 23

Threshold strength

Question 24

When a muscle appears to be at rest it’s fiber undergo sustained contraction

Answer 24

Muscle tone

Question 25

When a regularly exercised muscle loses it’s ability to contract

Answer 25

Muscle Fatigue

Question 26

Fine connective tissue sheath surrounding a muscle fiber

Answer 26

Endomysium

Question 27

The external sheath of connective tissue surround a muscle

Answer 27

Epimysium

Question 28

The sheath of connective tissue enveloping bundles of muscle fibers

Answer 28

Perimysium

Question 29

Moveable end of a muscle

Answer 29

Insertion

Question 30

Immovable end of a muscle

Answer 30

Origin

Question 31

Causes a persons muscle to not contract or relax

Answer 31

Tetanus

Question 32

An involuntary and forcibly contracted muscle that does not relax

Answer 32

Muscle cramp

Question 33

Something that occurs during strenuous exercise/ lactic acid accumulates

Answer 33

Oxygen debt

Question 34

Cytoplasm of a strained muscle fiber

Answer 34

Sacroplasm

Question 35

How does rigor Morris affect muscles

Answer 35

It stiffens muscles after death for up to 72 hours

Question 36

What’s the difference between atrophy and hypertrophy?

Answer 36

Atrophy- muscle becomes weak due to disease

Hypertrophy- muscle enlarges due to disease or working out

Question 37

Where does muscle energy come from

Answer 37

ATP at cellular level (mitochondria)