Muscular System

Question 1

What are the 3 types of muscles found in the body?

Answer 1

Cardiac Muscle

Smooth Muscle

Skeletal Muscle

Question 2

What is the skeletal muscle body location?

Answer 2

Muscle is attached to the bone

Question 3

What is skeletal muscle appearance and what is their type of contractions?

Answer 3

Appearance, it has obvious striations

Contractions, it is voluntary

Question 4

What is the cardiac muscle body location?

Answer 4

Walls of the heart

Question 5

What is the cardiac muscle appearance and what is their contractions type?

Answer 5

Appearance, it does have striations

Contractions, it is involuntary

Question 6

What is the smooth muscle body location?

Answer 6

Internal organs

Question 7

What is the smooth muscle appearance and what is their type of contractions?

Answer 7

Appearance, it does not have striations

Contractions, it is involuntary

Question 8

What are the 5 types of properties of muscle?

Answer 8

Irritable

Contractible

Extensible

Elastic

Adaptable

Question 9

What are the properties of muscle stands for?

Answer 9

Irritable - receiving or responding to a stimulus from nerves

Contractible - able to shorten when stimulus is present

Extensible - ability of the muscle to be stretch without damage when force is applied

Elastic - ability to return to its original length after being shortened and lengthened

Adaptable - muscle size increase(hypertrophy) and reduce in size (atrophy) if muscle is deprive from work

Question 10

What are the 7 types of muscle naming?

Answer 10

Number of origins

Location of origins and insertions

Location of the muscle

Shape of muscle

Direction of muscle fibres

Relative size of muscle

Action

Question 11

What are the definition of the 7 types of muscle stands for?

Answer 11

Number of origins - example bicep has 2 origins (Long and Short head)

Location of origins and insertions - some muscles are named by their attachment points on the bones

Location of the muscle - some muscles takes the name of the bones they are associate with

Shape of the muscle - some muscles have a unique name that would dictate their names

Direction of muscle fibres - some muscles are named after the direction of the fibres

Relative size of muscle - Maximus (Largest), Minimus (Smallest) and Longus (Long)

Actions - some muscles are named for the actions they perform

Question 12

What is the anatomy of the skeletal muscle?

Answer 12

Covered by the Epimysium to protect the muscle from friction and bones

The tendon is attached to the muscle to bone

Muscle fiber cell contains myofibrils (Myosin and Actin)

Question 13

What is the definition of energy for contraction?

Answer 13

The energy supply for the contractions is called the ATP, its a energy storing for molecule available in muscle

Question 14

What is the meaning of innervation?

Answer 14

Nerves that is connected to the muscle

Question 15

What is the sliding filament theory?

Answer 15

Contraction of mechanism of muscles

Question 16

What happens during muscle contractions?

Answer 16

Muscle fibers shorten as contractions occur

Myosin cross bridges pull actin filament inwards

Question 17

What happens during muscle relaxation?

Answer 17

Muscle fibers relax

Actin and Myosin filaments slide apart

Question 18

What are the types of muscle fibers?

Answer 18

Slow twitch

Fast twitch (11A)

Fast twitch (11B)

Question 19

What are the function of the different types of the muscle fibers?

Answer 19

Slow twitch - Their muscles rely on oxygen as their main energy source, have a slow shortening speed

Fast twitch (11A) - They can produce energy through glycolytic and aerobic processes and have the ability to produce fast and low intensity movements

Fast Twitch (11B) - Fastest contracting muscle fiber type, 10x faster than slow twitch 1 fiber and also

Question 20

What are the roles of skeletal muscle in the muscle contraction?

Answer 20

Concentric contraction

Eccentric contraction

Isometric contraction

Isotonic contraction

Isokinetic contraction

Antagonist

Synergist

Stabilizers/Fixators

Question 21

What are the function of the roles of the skeletal muscle in the muscle contraction?

Answer 21

Concentric contraction - contraction of muscle shortens under load or tension

Eccentric contraction - muscle lengthen under load or tension

Isometric contraction - little or no movement

Isotonic contraction - the contraction of a muscle with movement against a natural resistance

Isokinetic contraction - contraction of muscle
against concomitant force at a constant speed

Question 22

Types of anatomical positions?

Answer 22

Sagittal plane

Frontal plane

Transverse plane

Question 23

What are the different types of somatotypes?

Answer 23

Ectomorph

Endomorph

Mesomorph

Question 24

What is an Ectomorph and what are their features?

Answer 24

Long thin limbed and muscles with low level of fats

Typically skinny
Small frame

Question 25

What is a mesomorph and what are their features?

Answer 25

Medium boned, heavy upper body and low levels of body fats

Broad shoulders

Gains muscle easily

Question 26

What is an endomorph and what are their feature?

Answer 26

Large frame with higher body fat percentage

Large muscles

Slow metabolism